Summary of differences in arcseconds
Green means < 10 milli-arcsec, orange < 1 arcsec and red > 1 arcsec
| kapteyn | novas | palpy | pyast | pyephem | pyslalib | pytpm | skyfield | ||
|---|---|---|---|---|---|---|---|---|---|
| ecliptic → fk4 | 12.142617 10.962334 13.929943 3.073007 | — | 12.128428 10.935371 13.888976 3.057482 | 12.188700 10.989591 13.957816 3.072625 | 11.674292 10.582021 13.791029 2.971487 | 12.116708 10.928913 13.882168 3.057091 | 690.615381 622.587278 790.677310 174.068335 | — | Median Mean Max Std.Dev. |
| ecliptic → fk5 | 12.176071 10.982941 13.949959 3.072341 | 12.183666 10.983796 13.949868 3.071507 | 12.128188 10.935167 13.887797 3.057587 | 12.188460 10.989386 13.956636 3.072730 | 12.176075 10.982942 13.949959 3.072340 | 12.115886 10.928721 13.881117 3.057197 | 690.615131 622.587493 790.677210 174.068222 | — | Median Mean Max Std.Dev. |
| ecliptic → galactic | 12.176071 10.982941 13.949959 3.072341 | — | 12.127859 10.935080 13.887731 3.057601 | 12.188131 10.989299 13.956571 3.072743 | 12.172479 10.979089 13.945046 3.071261 | 12.115680 10.928636 13.881053 3.057211 | 690.624529 622.564989 790.655601 174.068100 | — | Median Mean Max Std.Dev. |
| ecliptic → icrs | 12.176071 10.982941 13.949959 3.072341 | 12.169467 10.970410 13.932002 3.066932 | 12.128188 10.935167 13.887797 3.057587 | 12.188459 10.989386 13.956636 3.072730 | — | 12.115886 10.928721 13.881117 3.057197 | — | — | Median Mean Max Std.Dev. |
| fk4 → ecliptic | 12.056404 10.848955 13.929914 3.195015 | — | 11.985431 10.820986 13.888844 3.182153 | 12.044888 10.874632 13.957682 3.197933 | 2159.911813 1948.949561 2501.029890 573.269310 | 11.981268 10.814985 13.882247 3.180664 | 2158.271019 1948.164062 2500.327483 572.958809 | — | Median Mean Max Std.Dev. |
| fk4 → fk5 | 0.000020 0.000019 0.000029 0.000006 | — | 0.004455 0.004223 0.006196 0.001324 | 0.004455 0.004223 0.006196 0.001324 | 0.564695 0.574742 1.020210 0.254929 | 0.004455 0.004223 0.006196 0.001324 | 0.004450 0.004216 0.006186 0.001322 | — | Median Mean Max Std.Dev. |
| fk4 → galactic | 0.000004 0.000004 0.000005 0.000001 | — | 0.217933 0.196145 0.249069 0.055752 | 0.217933 0.196145 0.249069 0.055752 | 0.459495 0.458131 0.860151 0.230676 | 0.217933 0.196145 0.249069 0.055752 | 0.000000 0.000000 0.000001 0.000000 | — | Median Mean Max Std.Dev. |
| fk4 → icrs | 0.000004 0.000004 0.000006 0.000001 | — | 0.004461 0.004223 0.006199 0.001325 | 0.004461 0.004223 0.006199 0.001325 | — | 0.004461 0.004223 0.006199 0.001325 | — | — | Median Mean Max Std.Dev. |
| fk5 → ecliptic | 12.040405 10.868485 13.949966 3.196385 | 12.042833 10.868937 13.949851 3.196657 | 11.987949 10.820832 13.887806 3.182083 | 12.047118 10.874478 13.956645 3.197862 | 12.040407 10.868485 13.949966 3.196385 | 11.980953 10.814838 13.881125 3.180605 | 12.040405 10.868485 13.949966 3.196385 | — | Median Mean Max Std.Dev. |
| fk5 → fk4 | 0.000004 0.000004 0.000006 0.000001 | — | 0.004450 0.004217 0.006194 0.001322 | 0.004450 0.004217 0.006194 0.001322 | 0.564713 0.574624 1.020036 0.254973 | 0.004450 0.004217 0.006194 0.001322 | 0.004450 0.004217 0.006189 0.001322 | — | Median Mean Max Std.Dev. |
| fk5 → galactic | 0.000001 0.000001 0.000001 0.000000 | — | 0.001235 0.001110 0.001414 0.000319 | 0.001235 0.001110 0.001414 0.000319 | 0.007900 0.007151 0.009162 0.002086 | 0.001235 0.001110 0.001414 0.000319 | 0.217647 0.196029 0.248969 0.055728 | — | Median Mean Max Std.Dev. |
| fk5 → icrs | 0.000000 0.000000 0.000000 0.000000 | 0.025767 0.023355 0.030023 0.006856 | 0.000000 0.000000 0.000000 0.000000 | 0.000000 0.000000 0.000000 0.000000 | — | 0.000000 0.000000 0.000000 0.000000 | — | — | Median Mean Max Std.Dev. |
| galactic → ecliptic | 12.137604 11.001981 13.949971 3.125673 | — | 12.088482 10.952434 13.887739 3.111544 | 12.148645 11.006717 13.956578 3.126967 | 12.134777 10.998102 13.945060 3.124617 | 12.077781 10.947658 13.881066 3.110235 | 1827.313970 1654.609969 2098.067013 470.091539 | — | Median Mean Max Std.Dev. |
| galactic → fk4 | 0.000004 0.000004 0.000005 0.000001 | — | 0.217123 0.195032 0.249037 0.056381 | 0.217123 0.195032 0.249037 0.056381 | 0.448513 0.449965 0.858774 0.226540 | 0.217123 0.195032 0.249037 0.056381 | 0.000000 0.000000 0.000000 0.000000 | — | Median Mean Max Std.Dev. |
| galactic → fk5 | 0.000001 0.000001 0.000001 0.000000 | — | 0.001213 0.001098 0.001414 0.000326 | 0.001213 0.001098 0.001414 0.000326 | 0.007893 0.007138 0.009162 0.002052 | 0.001213 0.001098 0.001414 0.000326 | 0.216475 0.194941 0.248948 0.056376 | — | Median Mean Max Std.Dev. |
| galactic → icrs | 0.000001 0.000001 0.000001 0.000000 | — | 0.001213 0.001098 0.001414 0.000326 | 0.001213 0.001098 0.001414 0.000326 | — | 0.001213 0.001098 0.001414 0.000326 | — | — | Median Mean Max Std.Dev. |
| icrs → ecliptic | 12.040405 10.868485 13.949966 3.196385 | 12.024710 10.855515 13.931998 3.192368 | 11.987949 10.820832 13.887806 3.182083 | 12.047119 10.874478 13.956645 3.197862 | — | 11.980953 10.814838 13.881125 3.180605 | — | — | Median Mean Max Std.Dev. |
| icrs → fk4 | 0.000004 0.000004 0.000006 0.000001 | — | 0.004450 0.004217 0.006194 0.001322 | 0.004450 0.004217 0.006194 0.001322 | — | 0.004450 0.004217 0.006193 0.001322 | — | — | Median Mean Max Std.Dev. |
| icrs → fk5 | 0.000000 0.000000 0.000000 0.000000 | 0.025768 0.023355 0.030023 0.006856 | 0.000000 0.000000 0.000000 0.000000 | 0.000000 0.000000 0.000000 0.000000 | — | 0.000000 0.000000 0.000000 0.000000 | — | — | Median Mean Max Std.Dev. |
| icrs → galactic | 0.000001 0.000001 0.000001 0.000000 | — | 0.001235 0.001110 0.001414 0.000319 | 0.001235 0.001110 0.001414 0.000319 | — | 0.001235 0.001110 0.001414 0.000319 | — | — | Median Mean Max Std.Dev. |
| astropy | novas | palpy | pyast | pyephem | pyslalib | pytpm | skyfield | ||
|---|---|---|---|---|---|---|---|---|---|
| ecliptic → fk4 | 12.142617 10.962334 13.929943 3.073007 | — | 0.237836 0.213103 0.274448 0.063567 | 0.237787 0.213535 0.273263 0.062337 | 0.462763 0.462079 0.867329 0.233441 | 0.216124 0.195768 0.252205 0.058310 | 702.800664 633.547833 804.604709 177.140435 | — | Median Mean Max Std.Dev. |
| ecliptic → fk5 | 12.176071 10.982941 13.949959 3.072341 | 0.036619 0.032998 0.042000 0.009518 | 0.062989 0.057502 0.074091 0.016668 | 0.036183 0.032943 0.041557 0.008885 | 0.000035 0.000031 0.000040 0.000009 | 0.060108 0.054226 0.068848 0.015144 | 702.803563 633.570340 804.627022 177.140546 | — | Median Mean Max Std.Dev. |
| ecliptic → galactic | 12.176071 10.982941 13.949959 3.072341 | — | 0.062585 0.057036 0.073489 0.016545 | 0.035059 0.031971 0.040328 0.008607 | 0.007969 0.007195 0.009186 0.002062 | 0.060132 0.054337 0.068950 0.015137 | 702.800457 633.547838 804.605484 177.140425 | — | Median Mean Max Std.Dev. |
| ecliptic → icrs | 12.176071 10.982941 13.949959 3.072341 | 0.052811 0.047844 0.061352 0.013971 | 0.062989 0.057502 0.074091 0.016668 | 0.036183 0.032943 0.041557 0.008885 | — | 0.060108 0.054226 0.068848 0.015144 | — | — | Median Mean Max Std.Dev. |
| fk4 → ecliptic | 12.056404 10.848955 13.929914 3.195015 | — | 0.240237 0.215427 0.274486 0.061770 | 0.240140 0.215617 0.273277 0.060939 | 2171.957761 1959.795499 2514.951274 576.463932 | 0.219353 0.197609 0.252238 0.056954 | 2170.317391 1959.010974 2514.254530 576.153593 | — | Median Mean Max Std.Dev. |
| fk4 → fk5 | 0.000020 0.000019 0.000029 0.000006 | — | 0.004460 0.004223 0.006200 0.001325 | 0.004460 0.004223 0.006200 0.001325 | 0.564669 0.574735 1.020198 0.254926 | 0.004460 0.004223 0.006200 0.001325 | 0.004453 0.004216 0.006189 0.001323 | — | Median Mean Max Std.Dev. |
| fk4 → galactic | 0.000004 0.000004 0.000005 0.000001 | — | 0.217934 0.196145 0.249065 0.055752 | 0.217934 0.196145 0.249065 0.055752 | 0.459492 0.458129 0.860146 0.230674 | 0.217934 0.196145 0.249065 0.055752 | 0.000004 0.000004 0.000005 0.000001 | — | Median Mean Max Std.Dev. |
| fk4 → icrs | 0.000004 0.000004 0.000006 0.000001 | — | 0.004460 0.004223 0.006200 0.001325 | 0.004460 0.004223 0.006200 0.001325 | — | 0.004460 0.004223 0.006200 0.001325 | — | — | Median Mean Max Std.Dev. |
| fk5 → ecliptic | 12.040405 10.868485 13.949966 3.196385 | 0.036620 0.032998 0.042000 0.009518 | 0.063328 0.057304 0.074092 0.017004 | 0.036442 0.033079 0.041557 0.008934 | 0.000035 0.000031 0.000040 0.000009 | 0.059455 0.053652 0.068848 0.015781 | 0.000001 0.000001 0.000001 0.000000 | — | Median Mean Max Std.Dev. |
| fk5 → fk4 | 0.000004 0.000004 0.000006 0.000001 | — | 0.004450 0.004216 0.006194 0.001322 | 0.004450 0.004216 0.006194 0.001322 | 0.564712 0.574623 1.020032 0.254971 | 0.004449 0.004216 0.006194 0.001322 | 0.004450 0.004217 0.006189 0.001322 | — | Median Mean Max Std.Dev. |
| fk5 → galactic | 0.000001 0.000001 0.000001 0.000000 | — | 0.001235 0.001110 0.001414 0.000319 | 0.001235 0.001110 0.001414 0.000319 | 0.007901 0.007152 0.009162 0.002086 | 0.001235 0.001110 0.001414 0.000319 | 0.217646 0.196028 0.248968 0.055728 | — | Median Mean Max Std.Dev. |
| fk5 → icrs | 0.000000 0.000000 0.000000 0.000000 | 0.025767 0.023355 0.030023 0.006856 | 0.000000 0.000000 0.000000 0.000000 | 0.000000 0.000000 0.000000 0.000000 | — | 0.000000 0.000000 0.000000 0.000000 | — | — | Median Mean Max Std.Dev. |
| galactic → ecliptic | 12.137604 11.001981 13.949971 3.125673 | — | 0.064456 0.058484 0.073489 0.016163 | 0.034859 0.031737 0.040328 0.008981 | 0.007917 0.007157 0.009186 0.002057 | 0.060139 0.054354 0.068950 0.015447 | 1839.445487 1665.611830 2112.016920 473.217213 | — | Median Mean Max Std.Dev. |
| galactic → fk4 | 0.000004 0.000004 0.000005 0.000001 | — | 0.217121 0.195032 0.249032 0.056381 | 0.217121 0.195032 0.249032 0.056381 | 0.448511 0.449963 0.858769 0.226537 | 0.217121 0.195032 0.249032 0.056381 | 0.000004 0.000004 0.000005 0.000001 | — | Median Mean Max Std.Dev. |
| galactic → fk5 | 0.000001 0.000001 0.000001 0.000000 | — | 0.001213 0.001098 0.001414 0.000326 | 0.001213 0.001098 0.001414 0.000326 | 0.007894 0.007138 0.009162 0.002053 | 0.001213 0.001098 0.001414 0.000326 | 0.216474 0.194940 0.248947 0.056376 | — | Median Mean Max Std.Dev. |
| galactic → icrs | 0.000001 0.000001 0.000001 0.000000 | — | 0.001213 0.001098 0.001414 0.000326 | 0.001213 0.001098 0.001414 0.000326 | — | 0.001213 0.001098 0.001414 0.000326 | — | — | Median Mean Max Std.Dev. |
| icrs → ecliptic | 12.040405 10.868485 13.949966 3.196385 | 0.052716 0.048124 0.061352 0.013606 | 0.063327 0.057304 0.074091 0.017004 | 0.036442 0.033079 0.041557 0.008934 | — | 0.059455 0.053652 0.068848 0.015781 | — | — | Median Mean Max Std.Dev. |
| icrs → fk4 | 0.000004 0.000004 0.000006 0.000001 | — | 0.004450 0.004216 0.006194 0.001322 | 0.004450 0.004216 0.006194 0.001322 | — | 0.004449 0.004216 0.006194 0.001322 | — | — | Median Mean Max Std.Dev. |
| icrs → fk5 | 0.000000 0.000000 0.000000 0.000000 | 0.025768 0.023355 0.030023 0.006856 | 0.000000 0.000000 0.000000 0.000000 | 0.000000 0.000000 0.000000 0.000000 | — | 0.000000 0.000000 0.000000 0.000000 | — | — | Median Mean Max Std.Dev. |
| icrs → galactic | 0.000001 0.000001 0.000001 0.000000 | — | 0.001235 0.001110 0.001414 0.000319 | 0.001235 0.001110 0.001414 0.000319 | — | 0.001235 0.001110 0.001414 0.000319 | — | — | Median Mean Max Std.Dev. |
| astropy | kapteyn | palpy | pyast | pyephem | pyslalib | pytpm | skyfield | ||
|---|---|---|---|---|---|---|---|---|---|
| ecliptic → fk5 | 12.183666 10.983796 13.949868 3.071507 | 0.036619 0.032998 0.042000 0.009518 | 0.056831 0.051613 0.065971 0.015038 | 0.020006 0.018190 0.023147 0.005122 | 0.036584 0.032967 0.041960 0.009509 | 0.071104 0.064468 0.080980 0.017490 | 702.800624 633.571277 804.627053 177.139729 | — | Median Mean Max Std.Dev. |
| ecliptic → icrs | 12.169467 10.970410 13.932002 3.066932 | 0.052811 0.047844 0.061352 0.013971 | 0.042302 0.038737 0.048756 0.010579 | 0.027330 0.024660 0.031674 0.007067 | — | 0.068411 0.062494 0.078201 0.016813 | — | — | Median Mean Max Std.Dev. |
| fk5 → ecliptic | 12.042833 10.868937 13.949851 3.196657 | 0.036620 0.032998 0.042000 0.009518 | 0.056558 0.051305 0.065971 0.015098 | 0.020125 0.018223 0.023147 0.005180 | 0.036585 0.032967 0.041960 0.009509 | 0.070258 0.063954 0.080981 0.017873 | 0.036619 0.032998 0.041999 0.009518 | — | Median Mean Max Std.Dev. |
| fk5 → icrs | 0.025767 0.023355 0.030023 0.006856 | 0.025767 0.023355 0.030023 0.006856 | 0.025767 0.023355 0.030023 0.006856 | 0.025767 0.023355 0.030023 0.006856 | — | 0.025767 0.023355 0.030023 0.006856 | — | — | Median Mean Max Std.Dev. |
| icrs → ecliptic | 12.024710 10.855515 13.931998 3.192368 | 0.052716 0.048124 0.061352 0.013606 | 0.041973 0.038386 0.048756 0.010878 | 0.026856 0.024571 0.031674 0.007105 | — | 0.069170 0.062263 0.078201 0.017047 | — | — | Median Mean Max Std.Dev. |
| icrs → fk5 | 0.025768 0.023355 0.030023 0.006856 | 0.025768 0.023355 0.030023 0.006856 | 0.025768 0.023355 0.030023 0.006856 | 0.025768 0.023355 0.030023 0.006856 | — | 0.025768 0.023355 0.030023 0.006856 | — | — | Median Mean Max Std.Dev. |
| astropy | kapteyn | novas | pyast | pyephem | pyslalib | pytpm | skyfield | ||
|---|---|---|---|---|---|---|---|---|---|
| ecliptic → fk4 | 12.128428 10.935371 13.888976 3.057482 | 0.237836 0.213103 0.274448 0.063567 | — | 0.060105 0.054222 0.068844 0.015143 | 0.543957 0.554878 0.988669 0.244565 | 0.036185 0.032943 0.041558 0.008885 | 702.746664 633.522634 804.566273 177.125814 | — | Median Mean Max Std.Dev. |
| ecliptic → fk5 | 12.128188 10.935167 13.887797 3.057587 | 0.062989 0.057502 0.074091 0.016668 | 0.056831 0.051613 0.065971 0.015038 | 0.060105 0.054222 0.068844 0.015143 | 0.062990 0.057487 0.074073 0.016664 | 0.036185 0.032943 0.041558 0.008885 | 702.746813 633.522640 804.564982 177.125804 | — | Median Mean Max Std.Dev. |
| ecliptic → galactic | 12.127859 10.935080 13.887731 3.057601 | 0.062585 0.057036 0.073489 0.016545 | — | 0.060105 0.054222 0.068844 0.015143 | 0.058886 0.053390 0.068898 0.015687 | 0.036185 0.032943 0.041558 0.008885 | 702.744562 633.500043 804.543304 177.125694 | — | Median Mean Max Std.Dev. |
| ecliptic → icrs | 12.128188 10.935167 13.887797 3.057587 | 0.062989 0.057502 0.074091 0.016668 | 0.042302 0.038737 0.048756 0.010579 | 0.060105 0.054222 0.068844 0.015143 | — | 0.036185 0.032943 0.041558 0.008885 | — | — | Median Mean Max Std.Dev. |
| fk4 → ecliptic | 11.985431 10.820986 13.888844 3.182153 | 0.240237 0.215427 0.274486 0.061770 | — | 0.059451 0.053648 0.068844 0.015781 | 2171.836776 1959.769896 2514.914473 576.451267 | 0.036430 0.033072 0.041558 0.008951 | 2170.259022 1958.984984 2514.216001 576.140981 | — | Median Mean Max Std.Dev. |
| fk4 → fk5 | 0.004455 0.004223 0.006196 0.001324 | 0.004460 0.004223 0.006200 0.001325 | — | 0.000000 0.000000 0.000000 0.000000 | 0.565967 0.575010 1.019607 0.254424 | 0.000000 0.000000 0.000000 0.000000 | 0.000009 0.000009 0.000014 0.000002 | — | Median Mean Max Std.Dev. |
| fk4 → galactic | 0.217933 0.196145 0.249069 0.055752 | 0.217934 0.196145 0.249065 0.055752 | — | 0.000000 0.000000 0.000000 0.000000 | 0.563261 0.569953 1.012050 0.253002 | 0.000000 0.000000 0.000000 0.000000 | 0.217933 0.196145 0.249069 0.055752 | — | Median Mean Max Std.Dev. |
| fk4 → icrs | 0.004461 0.004223 0.006199 0.001325 | 0.004460 0.004223 0.006200 0.001325 | — | 0.000000 0.000000 0.000000 0.000000 | — | 0.000000 0.000000 0.000000 0.000000 | — | — | Median Mean Max Std.Dev. |
| fk5 → ecliptic | 11.987949 10.820832 13.887806 3.182083 | 0.063328 0.057304 0.074092 0.017004 | 0.056558 0.051305 0.065971 0.015098 | 0.059451 0.053648 0.068844 0.015780 | 0.063304 0.057289 0.074073 0.017000 | 0.036442 0.033080 0.041558 0.008934 | 0.063327 0.057303 0.074091 0.017003 | — | Median Mean Max Std.Dev. |
| fk5 → fk4 | 0.004450 0.004217 0.006194 0.001322 | 0.004450 0.004216 0.006194 0.001322 | — | 0.000000 0.000000 0.000000 0.000000 | 0.564797 0.574896 1.019420 0.254471 | 0.000000 0.000000 0.000003 0.000000 | 0.000007 0.000007 0.000014 0.000003 | — | Median Mean Max Std.Dev. |
| fk5 → galactic | 0.001235 0.001110 0.001414 0.000319 | 0.001235 0.001110 0.001414 0.000319 | — | 0.000000 0.000000 0.000000 0.000000 | 0.008617 0.007782 0.009988 0.002287 | 0.000000 0.000000 0.000000 0.000000 | 0.217783 0.196115 0.249066 0.055749 | — | Median Mean Max Std.Dev. |
| fk5 → icrs | 0.000000 0.000000 0.000000 0.000000 | 0.000000 0.000000 0.000000 0.000000 | 0.025767 0.023355 0.030023 0.006856 | 0.000000 0.000000 0.000000 0.000000 | — | 0.000000 0.000000 0.000000 0.000000 | — | — | Median Mean Max Std.Dev. |
| galactic → ecliptic | 12.088482 10.952434 13.887739 3.111544 | 0.064456 0.058484 0.073489 0.016163 | — | 0.060143 0.054286 0.068844 0.015425 | 0.060528 0.054900 0.068899 0.015147 | 0.035887 0.032705 0.041558 0.009243 | 1839.402372 1665.562351 2111.954752 473.203093 | — | Median Mean Max Std.Dev. |
| galactic → fk4 | 0.217123 0.195032 0.249037 0.056381 | 0.217121 0.195032 0.249032 0.056381 | — | 0.000000 0.000000 0.000000 0.000000 | 0.543986 0.560180 1.009565 0.241864 | 0.000000 0.000000 0.000003 0.000000 | 0.217123 0.195032 0.249037 0.056381 | — | Median Mean Max Std.Dev. |
| galactic → fk5 | 0.001213 0.001098 0.001414 0.000326 | 0.001213 0.001098 0.001414 0.000326 | — | 0.000000 0.000000 0.000000 0.000000 | 0.008570 0.007780 0.009988 0.002224 | 0.000000 0.000000 0.000000 0.000000 | 0.217124 0.195036 0.249042 0.056383 | — | Median Mean Max Std.Dev. |
| galactic → icrs | 0.001213 0.001098 0.001414 0.000326 | 0.001213 0.001098 0.001414 0.000326 | — | 0.000000 0.000000 0.000000 0.000000 | — | 0.000000 0.000000 0.000000 0.000000 | — | — | Median Mean Max Std.Dev. |
| icrs → ecliptic | 11.987949 10.820832 13.887806 3.182083 | 0.063327 0.057304 0.074091 0.017004 | 0.041973 0.038386 0.048756 0.010878 | 0.059451 0.053648 0.068844 0.015780 | — | 0.036442 0.033080 0.041558 0.008934 | — | — | Median Mean Max Std.Dev. |
| icrs → fk4 | 0.004450 0.004217 0.006194 0.001322 | 0.004450 0.004216 0.006194 0.001322 | — | 0.000000 0.000000 0.000000 0.000000 | — | 0.000000 0.000000 0.000003 0.000000 | — | — | Median Mean Max Std.Dev. |
| icrs → fk5 | 0.000000 0.000000 0.000000 0.000000 | 0.000000 0.000000 0.000000 0.000000 | 0.025768 0.023355 0.030023 0.006856 | 0.000000 0.000000 0.000000 0.000000 | — | 0.000000 0.000000 0.000000 0.000000 | — | — | Median Mean Max Std.Dev. |
| icrs → galactic | 0.001235 0.001110 0.001414 0.000319 | 0.001235 0.001110 0.001414 0.000319 | — | 0.000000 0.000000 0.000000 0.000000 | — | 0.000000 0.000000 0.000000 0.000000 | — | — | Median Mean Max Std.Dev. |
| astropy | kapteyn | novas | palpy | pyephem | pyslalib | pytpm | skyfield | ||
|---|---|---|---|---|---|---|---|---|---|
| ecliptic → fk4 | 12.188700 10.989591 13.957816 3.072625 | 0.237787 0.213535 0.273263 0.062337 | — | 0.060105 0.054222 0.068844 0.015143 | 0.577853 0.591075 1.036336 0.252163 | 0.075946 0.068819 0.086278 0.018634 | 702.806748 633.576854 804.635114 177.140957 | — | Median Mean Max Std.Dev. |
| ecliptic → fk5 | 12.188460 10.989386 13.956636 3.072730 | 0.036183 0.032943 0.041557 0.008885 | 0.020006 0.018190 0.023147 0.005122 | 0.060105 0.054222 0.068844 0.015143 | 0.036153 0.032916 0.041523 0.008877 | 0.075946 0.068819 0.086279 0.018634 | 702.806898 633.576860 804.633823 177.140947 | — | Median Mean Max Std.Dev. |
| ecliptic → galactic | 12.188131 10.989299 13.956571 3.072743 | 0.035059 0.031971 0.040328 0.008607 | — | 0.060105 0.054222 0.068844 0.015143 | 0.035177 0.032202 0.040494 0.008559 | 0.075946 0.068819 0.086278 0.018634 | 702.804804 633.554263 804.612145 177.140837 | — | Median Mean Max Std.Dev. |
| ecliptic → icrs | 12.188459 10.989386 13.956636 3.072730 | 0.036183 0.032943 0.041557 0.008885 | 0.027330 0.024660 0.031674 0.007067 | 0.060105 0.054222 0.068844 0.015143 | — | 0.075946 0.068819 0.086278 0.018634 | — | — | Median Mean Max Std.Dev. |
| fk4 → ecliptic | 12.044888 10.874632 13.957682 3.197933 | 0.240140 0.215617 0.273277 0.060939 | — | 0.059451 0.053648 0.068844 0.015781 | 2171.896226 1959.823544 2514.983311 576.467048 | 0.075305 0.068355 0.086278 0.018902 | 2170.318408 1959.038629 2514.284841 576.156761 | — | Median Mean Max Std.Dev. |
| fk4 → fk5 | 0.004455 0.004223 0.006196 0.001324 | 0.004460 0.004223 0.006200 0.001325 | — | 0.000000 0.000000 0.000000 0.000000 | 0.565967 0.575010 1.019607 0.254424 | 0.000000 0.000000 0.000000 0.000000 | 0.000009 0.000009 0.000014 0.000002 | — | Median Mean Max Std.Dev. |
| fk4 → galactic | 0.217933 0.196145 0.249069 0.055752 | 0.217934 0.196145 0.249065 0.055752 | — | 0.000000 0.000000 0.000000 0.000000 | 0.563261 0.569953 1.012050 0.253002 | 0.000000 0.000000 0.000000 0.000000 | 0.217933 0.196145 0.249069 0.055752 | — | Median Mean Max Std.Dev. |
| fk4 → icrs | 0.004461 0.004223 0.006199 0.001325 | 0.004460 0.004223 0.006200 0.001325 | — | 0.000000 0.000000 0.000000 0.000000 | — | 0.000000 0.000000 0.000000 0.000000 | — | — | Median Mean Max Std.Dev. |
| fk5 → ecliptic | 12.047118 10.874478 13.956645 3.197862 | 0.036442 0.033079 0.041557 0.008934 | 0.020125 0.018223 0.023147 0.005180 | 0.059451 0.053648 0.068844 0.015780 | 0.036411 0.033053 0.041523 0.008926 | 0.075274 0.068358 0.086278 0.018900 | 0.036441 0.033079 0.041557 0.008933 | — | Median Mean Max Std.Dev. |
| fk5 → fk4 | 0.004450 0.004217 0.006194 0.001322 | 0.004450 0.004216 0.006194 0.001322 | — | 0.000000 0.000000 0.000000 0.000000 | 0.564797 0.574896 1.019420 0.254471 | 0.000000 0.000000 0.000003 0.000000 | 0.000007 0.000007 0.000014 0.000003 | — | Median Mean Max Std.Dev. |
| fk5 → galactic | 0.001235 0.001110 0.001414 0.000319 | 0.001235 0.001110 0.001414 0.000319 | — | 0.000000 0.000000 0.000000 0.000000 | 0.008617 0.007782 0.009988 0.002287 | 0.000000 0.000000 0.000000 0.000000 | 0.217783 0.196115 0.249066 0.055749 | — | Median Mean Max Std.Dev. |
| fk5 → icrs | 0.000000 0.000000 0.000000 0.000000 | 0.000000 0.000000 0.000000 0.000000 | 0.025767 0.023355 0.030023 0.006856 | 0.000000 0.000000 0.000000 0.000000 | — | 0.000000 0.000000 0.000000 0.000000 | — | — | Median Mean Max Std.Dev. |
| galactic → ecliptic | 12.148645 11.006717 13.956578 3.126967 | 0.034859 0.031737 0.040328 0.008981 | — | 0.060143 0.054286 0.068844 0.015425 | 0.035078 0.031852 0.040494 0.009102 | 0.074122 0.067658 0.086278 0.018980 | 1839.462537 1665.616635 2112.023591 473.218517 | — | Median Mean Max Std.Dev. |
| galactic → fk4 | 0.217123 0.195032 0.249037 0.056381 | 0.217121 0.195032 0.249032 0.056381 | — | 0.000000 0.000000 0.000000 0.000000 | 0.543986 0.560180 1.009565 0.241864 | 0.000000 0.000000 0.000003 0.000000 | 0.217123 0.195032 0.249037 0.056381 | — | Median Mean Max Std.Dev. |
| galactic → fk5 | 0.001213 0.001098 0.001414 0.000326 | 0.001213 0.001098 0.001414 0.000326 | — | 0.000000 0.000000 0.000000 0.000000 | 0.008570 0.007780 0.009988 0.002224 | 0.000000 0.000000 0.000000 0.000000 | 0.217124 0.195036 0.249042 0.056383 | — | Median Mean Max Std.Dev. |
| galactic → icrs | 0.001213 0.001098 0.001414 0.000326 | 0.001213 0.001098 0.001414 0.000326 | — | 0.000000 0.000000 0.000000 0.000000 | — | 0.000000 0.000000 0.000000 0.000000 | — | — | Median Mean Max Std.Dev. |
| icrs → ecliptic | 12.047119 10.874478 13.956645 3.197862 | 0.036442 0.033079 0.041557 0.008934 | 0.026856 0.024571 0.031674 0.007105 | 0.059451 0.053648 0.068844 0.015780 | — | 0.075274 0.068358 0.086278 0.018900 | — | — | Median Mean Max Std.Dev. |
| icrs → fk4 | 0.004450 0.004217 0.006194 0.001322 | 0.004450 0.004216 0.006194 0.001322 | — | 0.000000 0.000000 0.000000 0.000000 | — | 0.000000 0.000000 0.000003 0.000000 | — | — | Median Mean Max Std.Dev. |
| icrs → fk5 | 0.000000 0.000000 0.000000 0.000000 | 0.000000 0.000000 0.000000 0.000000 | 0.025768 0.023355 0.030023 0.006856 | 0.000000 0.000000 0.000000 0.000000 | — | 0.000000 0.000000 0.000000 0.000000 | — | — | Median Mean Max Std.Dev. |
| icrs → galactic | 0.001235 0.001110 0.001414 0.000319 | 0.001235 0.001110 0.001414 0.000319 | — | 0.000000 0.000000 0.000000 0.000000 | — | 0.000000 0.000000 0.000000 0.000000 | — | — | Median Mean Max Std.Dev. |
| astropy | kapteyn | novas | palpy | pyast | pyslalib | pytpm | skyfield | ||
|---|---|---|---|---|---|---|---|---|---|
| ecliptic → fk4 | 11.674292 10.582021 13.791029 2.971487 | 0.462763 0.462079 0.867329 0.233441 | — | 0.543957 0.554878 0.988669 0.244565 | 0.577853 0.591075 1.036336 0.252163 | 0.532399 0.538282 0.970174 0.243764 | 702.372929 633.161918 804.420798 177.029380 | — | Median Mean Max Std.Dev. |
| ecliptic → fk5 | 12.176075 10.982942 13.949959 3.072340 | 0.000035 0.000031 0.000040 0.000009 | 0.036584 0.032967 0.041960 0.009509 | 0.062990 0.057487 0.074073 0.016664 | 0.036153 0.032916 0.041523 0.008877 | 0.060106 0.054227 0.068848 0.015144 | 702.803560 633.570341 804.627022 177.140545 | — | Median Mean Max Std.Dev. |
| ecliptic → galactic | 12.172479 10.979089 13.945046 3.071261 | 0.007969 0.007195 0.009186 0.002062 | — | 0.058886 0.053390 0.068898 0.015687 | 0.035177 0.032202 0.040494 0.008559 | 0.056093 0.050976 0.064694 0.014277 | 702.799283 633.543999 804.600592 177.139348 | — | Median Mean Max Std.Dev. |
| fk4 → ecliptic | 2159.911813 1948.949561 2501.029890 573.269310 | 2171.957761 1959.795499 2514.951274 576.463932 | — | 2171.836776 1959.769896 2514.914473 576.451267 | 2171.896226 1959.823544 2514.983311 576.467048 | 2171.831977 1959.763571 2514.906957 576.449673 | 20.420169 18.417638 23.487377 5.302601 | — | Median Mean Max Std.Dev. |
| fk4 → fk5 | 0.564695 0.574742 1.020210 0.254929 | 0.564669 0.574735 1.020198 0.254926 | — | 0.565967 0.575010 1.019607 0.254424 | 0.565967 0.575010 1.019607 0.254424 | 0.565967 0.575010 1.019607 0.254424 | 0.565964 0.575010 1.019603 0.254424 | — | Median Mean Max Std.Dev. |
| fk4 → galactic | 0.459495 0.458131 0.860151 0.230676 | 0.459492 0.458129 0.860146 0.230674 | — | 0.563261 0.569953 1.012050 0.253002 | 0.563261 0.569953 1.012050 0.253002 | 0.563261 0.569953 1.012050 0.253002 | 0.459494 0.458131 0.860151 0.230676 | — | Median Mean Max Std.Dev. |
| fk5 → ecliptic | 12.040407 10.868485 13.949966 3.196385 | 0.000035 0.000031 0.000040 0.000009 | 0.036585 0.032967 0.041960 0.009509 | 0.063304 0.057289 0.074073 0.017000 | 0.036411 0.033053 0.041523 0.008926 | 0.059474 0.053652 0.068848 0.015782 | 0.000034 0.000031 0.000039 0.000009 | — | Median Mean Max Std.Dev. |
| fk5 → fk4 | 0.564713 0.574624 1.020036 0.254973 | 0.564712 0.574623 1.020032 0.254971 | — | 0.564797 0.574896 1.019420 0.254471 | 0.564797 0.574896 1.019420 0.254471 | 0.564797 0.574896 1.019420 0.254471 | 0.564799 0.574899 1.019430 0.254471 | — | Median Mean Max Std.Dev. |
| fk5 → galactic | 0.007900 0.007151 0.009162 0.002086 | 0.007901 0.007152 0.009162 0.002086 | — | 0.008617 0.007782 0.009988 0.002287 | 0.008617 0.007782 0.009988 0.002287 | 0.008617 0.007782 0.009988 0.002287 | 0.222743 0.200759 0.254952 0.057060 | — | Median Mean Max Std.Dev. |
| galactic → ecliptic | 12.134777 10.998102 13.945060 3.124617 | 0.007917 0.007157 0.009186 0.002057 | — | 0.060528 0.054900 0.068899 0.015147 | 0.035078 0.031852 0.040494 0.009102 | 0.056302 0.050974 0.064695 0.014538 | 1839.442931 1665.607962 2112.012009 473.216163 | — | Median Mean Max Std.Dev. |
| galactic → fk4 | 0.448513 0.449965 0.858774 0.226540 | 0.448511 0.449963 0.858769 0.226537 | — | 0.543986 0.560180 1.009565 0.241864 | 0.543986 0.560180 1.009565 0.241864 | 0.543986 0.560180 1.009565 0.241864 | 0.448513 0.449965 0.858774 0.226540 | — | Median Mean Max Std.Dev. |
| galactic → fk5 | 0.007893 0.007138 0.009162 0.002052 | 0.007894 0.007138 0.009162 0.002053 | — | 0.008570 0.007780 0.009988 0.002224 | 0.008570 0.007780 0.009988 0.002224 | 0.008570 0.007780 0.009988 0.002224 | 0.221211 0.199488 0.254886 0.057882 | — | Median Mean Max Std.Dev. |
| astropy | kapteyn | novas | palpy | pyast | pyephem | pytpm | skyfield | ||
|---|---|---|---|---|---|---|---|---|---|
| ecliptic → fk4 | 12.116708 10.928913 13.882168 3.057091 | 0.216124 0.195768 0.252205 0.058310 | — | 0.036185 0.032943 0.041558 0.008885 | 0.075946 0.068819 0.086278 0.018634 | 0.532399 0.538282 0.970174 0.243764 | 702.743325 633.516111 804.559468 177.125412 | — | Median Mean Max Std.Dev. |
| ecliptic → fk5 | 12.115886 10.928721 13.881117 3.057197 | 0.060108 0.054226 0.068848 0.015144 | 0.071104 0.064468 0.080980 0.017490 | 0.036185 0.032943 0.041558 0.008885 | 0.075946 0.068819 0.086279 0.018634 | 0.060106 0.054227 0.068848 0.015144 | 702.743475 633.516117 804.558177 177.125402 | — | Median Mean Max Std.Dev. |
| ecliptic → galactic | 12.115680 10.928636 13.881053 3.057211 | 0.060132 0.054337 0.068950 0.015137 | — | 0.036185 0.032943 0.041558 0.008885 | 0.075946 0.068819 0.086278 0.018634 | 0.056093 0.050976 0.064694 0.014277 | 702.739910 633.493525 804.536571 177.125294 | — | Median Mean Max Std.Dev. |
| ecliptic → icrs | 12.115886 10.928721 13.881117 3.057197 | 0.060108 0.054226 0.068848 0.015144 | 0.068411 0.062494 0.078201 0.016813 | 0.036185 0.032943 0.041558 0.008885 | 0.075946 0.068819 0.086278 0.018634 | — | — | — | Median Mean Max Std.Dev. |
| fk4 → ecliptic | 11.981268 10.814985 13.882247 3.180664 | 0.219353 0.197609 0.252238 0.056954 | — | 0.036430 0.033072 0.041558 0.008951 | 0.075305 0.068355 0.086278 0.018902 | 2171.831977 1959.763571 2514.906957 576.449673 | 2170.256934 1958.978920 2514.209196 576.139472 | — | Median Mean Max Std.Dev. |
| fk4 → fk5 | 0.004455 0.004223 0.006196 0.001324 | 0.004460 0.004223 0.006200 0.001325 | — | 0.000000 0.000000 0.000000 0.000000 | 0.000000 0.000000 0.000000 0.000000 | 0.565967 0.575010 1.019607 0.254424 | 0.000009 0.000009 0.000014 0.000002 | — | Median Mean Max Std.Dev. |
| fk4 → galactic | 0.217933 0.196145 0.249069 0.055752 | 0.217934 0.196145 0.249065 0.055752 | — | 0.000000 0.000000 0.000000 0.000000 | 0.000000 0.000000 0.000000 0.000000 | 0.563261 0.569953 1.012050 0.253002 | 0.217933 0.196145 0.249069 0.055752 | — | Median Mean Max Std.Dev. |
| fk4 → icrs | 0.004461 0.004223 0.006199 0.001325 | 0.004460 0.004223 0.006200 0.001325 | — | 0.000000 0.000000 0.000000 0.000000 | 0.000000 0.000000 0.000000 0.000000 | — | — | — | Median Mean Max Std.Dev. |
| fk5 → ecliptic | 11.980953 10.814838 13.881125 3.180605 | 0.059455 0.053652 0.068848 0.015781 | 0.070258 0.063954 0.080981 0.017873 | 0.036442 0.033080 0.041558 0.008934 | 0.075274 0.068358 0.086278 0.018900 | 0.059474 0.053652 0.068848 0.015782 | 0.059455 0.053652 0.068848 0.015781 | — | Median Mean Max Std.Dev. |
| fk5 → fk4 | 0.004450 0.004217 0.006194 0.001322 | 0.004449 0.004216 0.006194 0.001322 | — | 0.000000 0.000000 0.000003 0.000000 | 0.000000 0.000000 0.000003 0.000000 | 0.564797 0.574896 1.019420 0.254471 | 0.000007 0.000007 0.000014 0.000003 | — | Median Mean Max Std.Dev. |
| fk5 → galactic | 0.001235 0.001110 0.001414 0.000319 | 0.001235 0.001110 0.001414 0.000319 | — | 0.000000 0.000000 0.000000 0.000000 | 0.000000 0.000000 0.000000 0.000000 | 0.008617 0.007782 0.009988 0.002287 | 0.217783 0.196115 0.249066 0.055749 | — | Median Mean Max Std.Dev. |
| fk5 → icrs | 0.000000 0.000000 0.000000 0.000000 | 0.000000 0.000000 0.000000 0.000000 | 0.025767 0.023355 0.030023 0.006856 | 0.000000 0.000000 0.000000 0.000000 | 0.000000 0.000000 0.000000 0.000000 | — | — | — | Median Mean Max Std.Dev. |
| galactic → ecliptic | 12.077781 10.947658 13.881066 3.110235 | 0.060139 0.054354 0.068950 0.015447 | — | 0.035887 0.032705 0.041558 0.009243 | 0.074122 0.067658 0.086278 0.018980 | 0.056302 0.050974 0.064695 0.014538 | 1839.384799 1665.557500 2111.948009 473.201774 | — | Median Mean Max Std.Dev. |
| galactic → fk4 | 0.217123 0.195032 0.249037 0.056381 | 0.217121 0.195032 0.249032 0.056381 | — | 0.000000 0.000000 0.000003 0.000000 | 0.000000 0.000000 0.000003 0.000000 | 0.543986 0.560180 1.009565 0.241864 | 0.217123 0.195032 0.249037 0.056381 | — | Median Mean Max Std.Dev. |
| galactic → fk5 | 0.001213 0.001098 0.001414 0.000326 | 0.001213 0.001098 0.001414 0.000326 | — | 0.000000 0.000000 0.000000 0.000000 | 0.000000 0.000000 0.000000 0.000000 | 0.008570 0.007780 0.009988 0.002224 | 0.217124 0.195036 0.249042 0.056383 | — | Median Mean Max Std.Dev. |
| galactic → icrs | 0.001213 0.001098 0.001414 0.000326 | 0.001213 0.001098 0.001414 0.000326 | — | 0.000000 0.000000 0.000000 0.000000 | 0.000000 0.000000 0.000000 0.000000 | — | — | — | Median Mean Max Std.Dev. |
| icrs → ecliptic | 11.980953 10.814838 13.881125 3.180605 | 0.059455 0.053652 0.068848 0.015781 | 0.069170 0.062263 0.078201 0.017047 | 0.036442 0.033080 0.041558 0.008934 | 0.075274 0.068358 0.086278 0.018900 | — | — | — | Median Mean Max Std.Dev. |
| icrs → fk4 | 0.004450 0.004217 0.006193 0.001322 | 0.004449 0.004216 0.006194 0.001322 | — | 0.000000 0.000000 0.000003 0.000000 | 0.000000 0.000000 0.000003 0.000000 | — | — | — | Median Mean Max Std.Dev. |
| icrs → fk5 | 0.000000 0.000000 0.000000 0.000000 | 0.000000 0.000000 0.000000 0.000000 | 0.025768 0.023355 0.030023 0.006856 | 0.000000 0.000000 0.000000 0.000000 | 0.000000 0.000000 0.000000 0.000000 | — | — | — | Median Mean Max Std.Dev. |
| icrs → galactic | 0.001235 0.001110 0.001414 0.000319 | 0.001235 0.001110 0.001414 0.000319 | — | 0.000000 0.000000 0.000000 0.000000 | 0.000000 0.000000 0.000000 0.000000 | — | — | — | Median Mean Max Std.Dev. |
| astropy | kapteyn | novas | palpy | pyast | pyephem | pyslalib | skyfield | ||
|---|---|---|---|---|---|---|---|---|---|
| ecliptic → fk4 | 690.615381 622.587278 790.677310 174.068335 | 702.800664 633.547833 804.604709 177.140435 | — | 702.746664 633.522634 804.566273 177.125814 | 702.806748 633.576854 804.635114 177.140957 | 702.372929 633.161918 804.420798 177.029380 | 702.743325 633.516111 804.559468 177.125412 | — | Median Mean Max Std.Dev. |
| ecliptic → fk5 | 690.615131 622.587493 790.677210 174.068222 | 702.803563 633.570340 804.627022 177.140546 | 702.800624 633.571277 804.627053 177.139729 | 702.746813 633.522640 804.564982 177.125804 | 702.806898 633.576860 804.633823 177.140947 | 702.803560 633.570341 804.627022 177.140545 | 702.743475 633.516117 804.558177 177.125402 | — | Median Mean Max Std.Dev. |
| ecliptic → galactic | 690.624529 622.564989 790.655601 174.068100 | 702.800457 633.547838 804.605484 177.140425 | — | 702.744562 633.500043 804.543304 177.125694 | 702.804804 633.554263 804.612145 177.140837 | 702.799283 633.543999 804.600592 177.139348 | 702.739910 633.493525 804.536571 177.125294 | — | Median Mean Max Std.Dev. |
| fk4 → ecliptic | 2158.271019 1948.164062 2500.327483 572.958809 | 2170.317391 1959.010974 2514.254530 576.153593 | — | 2170.259022 1958.984984 2514.216001 576.140981 | 2170.318408 1959.038629 2514.284841 576.156761 | 20.420169 18.417638 23.487377 5.302601 | 2170.256934 1958.978920 2514.209196 576.139472 | — | Median Mean Max Std.Dev. |
| fk4 → fk5 | 0.004450 0.004216 0.006186 0.001322 | 0.004453 0.004216 0.006189 0.001323 | — | 0.000009 0.000009 0.000014 0.000002 | 0.000009 0.000009 0.000014 0.000002 | 0.565964 0.575010 1.019603 0.254424 | 0.000009 0.000009 0.000014 0.000002 | — | Median Mean Max Std.Dev. |
| fk4 → galactic | 0.000000 0.000000 0.000001 0.000000 | 0.000004 0.000004 0.000005 0.000001 | — | 0.217933 0.196145 0.249069 0.055752 | 0.217933 0.196145 0.249069 0.055752 | 0.459494 0.458131 0.860151 0.230676 | 0.217933 0.196145 0.249069 0.055752 | — | Median Mean Max Std.Dev. |
| fk5 → ecliptic | 12.040405 10.868485 13.949966 3.196385 | 0.000001 0.000001 0.000001 0.000000 | 0.036619 0.032998 0.041999 0.009518 | 0.063327 0.057303 0.074091 0.017003 | 0.036441 0.033079 0.041557 0.008933 | 0.000034 0.000031 0.000039 0.000009 | 0.059455 0.053652 0.068848 0.015781 | — | Median Mean Max Std.Dev. |
| fk5 → fk4 | 0.004450 0.004217 0.006189 0.001322 | 0.004450 0.004217 0.006189 0.001322 | — | 0.000007 0.000007 0.000014 0.000003 | 0.000007 0.000007 0.000014 0.000003 | 0.564799 0.574899 1.019430 0.254471 | 0.000007 0.000007 0.000014 0.000003 | — | Median Mean Max Std.Dev. |
| fk5 → galactic | 0.217647 0.196029 0.248969 0.055728 | 0.217646 0.196028 0.248968 0.055728 | — | 0.217783 0.196115 0.249066 0.055749 | 0.217783 0.196115 0.249066 0.055749 | 0.222743 0.200759 0.254952 0.057060 | 0.217783 0.196115 0.249066 0.055749 | — | Median Mean Max Std.Dev. |
| galactic → ecliptic | 1827.313970 1654.609969 2098.067013 470.091539 | 1839.445487 1665.611830 2112.016920 473.217213 | — | 1839.402372 1665.562351 2111.954752 473.203093 | 1839.462537 1665.616635 2112.023591 473.218517 | 1839.442931 1665.607962 2112.012009 473.216163 | 1839.384799 1665.557500 2111.948009 473.201774 | — | Median Mean Max Std.Dev. |
| galactic → fk4 | 0.000000 0.000000 0.000000 0.000000 | 0.000004 0.000004 0.000005 0.000001 | — | 0.217123 0.195032 0.249037 0.056381 | 0.217123 0.195032 0.249037 0.056381 | 0.448513 0.449965 0.858774 0.226540 | 0.217123 0.195032 0.249037 0.056381 | — | Median Mean Max Std.Dev. |
| galactic → fk5 | 0.216475 0.194941 0.248948 0.056376 | 0.216474 0.194940 0.248947 0.056376 | — | 0.217124 0.195036 0.249042 0.056383 | 0.217124 0.195036 0.249042 0.056383 | 0.221211 0.199488 0.254886 0.057882 | 0.217124 0.195036 0.249042 0.056383 | — | Median Mean Max Std.Dev. |
| astropy | kapteyn | novas | palpy | pyast | pyephem | pyslalib | pytpm |
|---|