By Charles Edward Barns
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Extra info for 1001 celestial wonders as observed with home-built instruments
NOy Fa 01:269 132835 Vis. 325. Per. 48yrs. Spc. Aj. 4. 6. M3 133828 Glob. Cl. Pre-eminent in its class, visible unaided in a clear sky. Several hundred thousand suns, compact in center, scattering at circumference. Distance, 13,900 parsecs = 3000 million ast. units-60,OOOlt. yrs. It requires light 65 years to span its angular diameter. Our Sun in its midst would be too faint even to photograph by two magnitudes. Shapley. Nearly 100 short-per. Cepheid variables found by Prof. Bailey. 30' east of BComae Ber.
Se~ R 134440 Var. 7. Per. 326d. Boss 35 I 1 133037 Sp. bin. 9. Short per. 61 d. F. 25 133336 Vis. 8. 12. Per. nOy Fa 01:269 132835 Vis. 325. Per. 48yrs. Spc. Aj. 4. 6. M3 133828 Glob. Cl. Pre-eminent in its class, visible unaided in a clear sky. Several hundred thousand suns, compact in center, scattering at circumference. Distance, 13,900 parsecs = 3000 million ast. units-60,OOOlt. yrs. It requires light 65 years to span its angular diameter. Our Sun in its midst would be too faint even to photograph by two magnitudes.
DJabtbematical formulae permit the calculation of the reo dia 0 ject's parallax with reasonable accuracy, even to the lance of a million light·years. :ed with each individual computation places this branch the L-~dlen~e in a class by itself; and though by this method and UUIU1 arIes of space have been pushed back toward infinity,. re • ~ whole horizon immeasurably widened (demanding the 1'ab~lon) of all our textbooks and categorical treatises on the there are few of this or any other generation willing noaa e t'?
1001 celestial wonders as observed with home-built instruments by Charles Edward Barns