6 3 8 



Tables 833 and 834 



TABLE 833.— Globular Star Clusters 



Table contains those distant greater than 40,000 and less than 10,000 parsecs. For com- 

 plete list see Shapley, Star clusters, p. 224, McGraw-Hill, 1930. 



I kiloparsec = 31 X io 15 km = 3 X io 3 light-years. Proper motions: 

 M13, R.A. +0.0005", dec. +0.0008; M56, —0.0013, +0.0066; M2, +0.0082, +0.0026; 



Van Maanen, 1927 



N. G. C. 



R. A. 



1900 



Dec. 

 1900 



Distance 



kilo- 

 parsecs 



6397(4366) 17 32.7 -53 37 304.5-12.5 19.O 



104 (47 Tuc.) . . . o 19.6 -72 38 272 -45 23 



5139 (co Cen.) 13 20.8 -46 47 277 +15 23 



6656 (M22) 18 30.3 -24 o 337-9 17-3 



6121 (M4) 16 17.5 —26 17 319 +15 14.0 



6752(4295) 19 2.0 -60 8 303 -26.5 13.3 



6809 (M55) 19 33.7 -31 10 336 -25 10.0 



6541(4473) 18 .8 -43 44 317 -12 6.3 



3201(4445) 10 13.5 -45 54 244 +9 7.7 



4372 12 20.1 —72 7 269 — 10 12.0 



6205 (M 13) 16 38.1 +36 39 27 +40 10.0 



6342 17 15-3 -19 29 333 +8 .5 



6528 17 58.4 -30 4 328.5-5 -5 



6325 17 n.9 -23 38 327-5+6 .7 



6864 (M 75) 20 .2 —22 12 347 —27 1.9 



6356 17 17-8 -17 43 334 +9 1-7 



6440 17 43 -20 20 335 +2 .7 



6453 17 44-7 -34 36 322.5 - 5-5 -7 



6517 J 7 56.4 - 8 57 347+6 .4 



7006 20 56.8 +15 48 32 —21 1.1 



2 



7 



132 



21 



33 

 1 



2 



1 



61 



5-65 



6.8 



6.8 



6.8 



7.2 



8.4 



8.8 



8-9 

 9.2 

 9.6 



10.3 



40 



44.4 



46 



48.5 



50 



50 



50 



50 



56.8 



TABLE 834.— Galactic Star Clusters 



Selected as having tire best determined distances from list of 248 clusters in Shapley, Star 

 clusters, p. 228, McGraw-Hill, 1930. 



1 kiloparsec = 31 X io 15 km = 3 X io 3 light-years 



Smithsonian Tables 



