Table 840 



64I 



MAGNITUDES, RADIAL VELOCITIES, AND DISTANCES OF EXTERNAL 



GALAXIES 



The following table is due to Shapley (Proc. Nat. Acad. Sci., 15, 565, 1929). The velocities 

 (mainly Slipher dataware from Hubble (loc. cit., 15, 169, 1929); the velocities are also given 

 corrected for the sun's motion towards the apex A, 277 , D, +36 , and a velocity of 280 

 km/sec. (Hubble, loc. cit.), i.e., corrected for "galactic rotation". Color indices are not very 

 reliable but the mean values for various groups serve to indicate negligible absorption of 

 light in space. Mean difference phtg.-vis. mag., +0.23; Hubble's 7619, the faintest, fastest 

 probably most remote, shows the largest color index, +2.8. 



Class N.G.C. 



Peculiar.. 205 



E2 221 



Sb 224 



Sc 278 



Eo 404 



E4 584 



Sc 598 



SBa 936 



SBa 1023 



Sb 1068 



E4 1 700 



2681 



Sc 2683 



Sb 2841 



Sb 3031 



Irreg 3034 



E7 3115 



Sa 3368 



Eo 3379 



Sb 3489 



Sc 3521 



Sb 3623 



Sb 3627 



E7 41 1 1 



Sb 4151 



Irreg 4214 



Sb 4258 



E4 *4382 



Irreg 4449 



Ei *4472 



Eo *4486 



Sa *4526 



Sb 4565 



Sa 4594 



E2 *4»49 



Sb 4736 



Sb 4826 



Sc 5005 



Sb 5055 



Sc 5194 



5195 



Sc 5236 



Sc 5457 



Sa 5866 



6822 



Sb 7331 



E3 7619 



R. A. 



1900 



h m 



Dec. 

 1900 



Radial 

 velocity 

 km/sec. 



km/sec. 



o 35 

 ° 37 

 o 37 



46 



1 4 

 26 

 28 

 23 

 34 

 38 

 52 



8 46 



8 46 



9 15 

 9 47 

 9 48 



10 o 

 10 41 

 10 43 



10 55 



11 1 

 11 14 



11 15 



12 2 



12 5 

 12 11 

 12 14 

 12 20 

 12 23 

 12 25 

 12 26 

 12 29 

 12 31 

 12 35 

 12 39 

 12 46 



12 52 



13 6 

 13 11 

 13 26 

 13 26 



13 31 



14 o 



15 4 

 19 39 



22 33 



23 15 



23 



+41 8 

 +40 19 

 +40 43 

 +47 1 

 +35 11 



- 7 

 +29 



- 1 36 

 +38 38 



- o 26 



- 5 1 

 +5i 4i 

 +33 48 

 +5i 24 

 +69 32 

 +70 9 



- 7 14 

 + 12 20 

 + 13 6 

 + 14 26 

 + o 30 

 + 13 39 

 + 13 33 

 +43 38 

 +39 58 

 +36 53 

 +47 52 

 + 18 45 

 +44 39 

 + 8 33 

 + 12 57 

 + 8 15 

 +26 33 

 -11 4 

 + 12 6 



+41 40 

 +22 13 



+37 35 



+42 33 



+47 43 



+47 47 



—29 21 



+54 49 

 +56 9 

 -15 o 



+33 54 

 + 7 39 



- 300 



- 185 



- 220 

 + 650 



- 25 

 + 1800 



- 70 

 + 1300 

 + 300 

 + 920 

 + 800 

 + 700 

 + 400 

 + 600 



- 30 

 + 290 

 -f- 600 

 + 940 

 + 810 

 + 600 

 + 730 

 + 800 

 + 650 

 + 800 

 + 960 

 + 300 

 + 500 

 + 500 

 + 200 

 + 850 

 + 800 

 + 580 

 + 1100 



+ 1140 

 + 1090 

 + 290 

 + 150 

 + 900 

 + 45o 

 + 270 

 + 240 

 + 500 

 + 200 

 + 650 

 - 130 

 + 500 

 +378o 



- 195 



- 85 



- 120 



+ 760 



+ 40 

 + 1725 



- 40 



+ "85 

 + 310 

 + 795 

 + 58o 

 + 710 

 + 335 

 + 620 



+ 75 

 + 395 

 + 495 

 + 870 



+ 745 

 + 55o 

 + 635 

 + 765 

 + 590 

 + 895 

 + 1050 

 + 385 

 + 455 

 + 570 

 + 230 

 + 870 

 + 835 

 + 600 



+ "75 

 + 1115 

 + 1130 

 + 410 

 + 230 

 + 1030 

 + 590 

 + 450 

 + 410 

 + 470 

 + 385 

 + 865 

 + 35 

 + 685 

 +39io 



Apparent 

 photo- 

 graphic Visual Distance 



magnitude mag. in mega- 

 mean Holetschek parsecs 



(Harvard) corrected (Hubble) 



1 1.2 



8-7 

 6.0 



11. 7 

 11.6 

 11.8 



9.0 

 11. 2 

 11. 2 



9.8 



12. 1 

 1 1 -3 

 "•3 

 10.5 



8-5 

 8.6 



9-9 



9.8 



10.2 



10.5 



9-8 



9.8 



10.0 



II.O 



10.9 

 10.6 



9.8 

 9.7 



9-5 



9-1 



9.2 



10.3 



10.4 



9-4 

 9.8 

 8.8 



9-3 

 10.6 

 10.0 



8-3 

 10.5 



8.8 

 10.2 



11. 2 



n-3 

 10.1 

 14.6 



10.0 



8.8 0.275 



5-0 .275 



12.0 

 11. 1 

 10.9 



70 .263 



11. 1 

 10.2 



9-1 1.0 

 12.5 

 10.7 



9-9 



9-4 



8.3 .9 



9.0 



9-5 

 10.0 



9-4 

 11.2 

 10.1 



9-9 



9.1 .9 



10.1 



12.0 1.7 

 II-3 -8 



8.7 1.4 

 10.0 



9-5 63 



9-7 

 11. 1 



II.O 



91 

 9-5 

 8.4 

 9.0 

 11. 1 

 9.6 



7-4 



8.9 



10.4 



9-9 

 11.7 



10.4 

 11.8 



5 

 9 



1 



5 



9 



45 



214 



Smithsonian Tables 



