The Andromeda Galaxy Observation data (J2000 - TopicsExpress



          

The Andromeda Galaxy Observation data (J2000 epoch) Pronunciation /ænˈdrɒmɨdə/ Constellation Andromeda Right ascension 00h 42m 44.3s[1] Declination +41° 16′ 9″[1] Redshift z = -0.001001 (minus sign indicates blueshift)[1] Helio radial velocity −301 ± 1 km/s[2] Distance 2.54 ± 0.11 Mly (778 ± 33 kpc)[2][3][4][5][6][a] Type SA(s)b[1] Mass ~1.5×1012[7] M☉ Size (ly) ~220 kly (diameter)[8] Number of stars 1 trillion (1012)[9] Apparent dimensions (V) 190′ × 60′[1] Apparent magnitude (V) 3.44[10][11] Absolute magnitude (V) −21.5[b][4]
Posted on: Wed, 24 Dec 2014 12:16:47 +0000

Trending Topics



Recently Viewed Topics




© 2015