Proyecto Astronómico Constelación Cruz del Sur southern_cross_colegio_cristobal_colon

Its coordinates are A. R. 12.45 h and Dec. -59.97 degrees, visible between parallels 20 degrees N to 90 degrees S. Its area is 68 square degrees. Image by astrophotographer Pedro Aguirre V. (http://astrosurf.com/pedro) In Table 1 we show data for the 11 brightest stars of this constellation. We present data for position, magnitude and spectral class of each star. Table 1 - Source: Catálogo de Brillos de Estrellas [7]. HR 4853 4730 4763 4731 4656 4700 4898 4679 4616 4599 4897 Common Name Becrux (Mimosa) Acrux Gacrux Bayer VarID Beta Bet Cru Alpha [7] Gamma Alpha [8] Delta Epsilon Mu [7] Zeta Nu Theta [7] Lambda 5672 Del Cru 5568 Lam Cru RA J2000 12h 47m 43.2s DEC J2000 -59° 41' 19" mag 1.25 MK Spectral Class Multiple Count B0.5III 3 12h 26m 35.9s 12h 31m 9.9s 12h 26m 36.5s 12h 15m 8.7s 12h 21m 21.6s 12h 54m 35.6s 12h 18m 26.1s 12h 6m 52.9s 12h 3m 1.5s 12h 54m 39.2s -63° 5' 57" -57° 6' 48" -63° 5' 58" -58° 44' 56" -60° 24' 4" -57° 10' 40" -64° 0' 11" -64° 36' 49" -63° 18' 46" -59° 8' 48" 1.33 1.63 1.73 2.8 3.59 4.03 4.04 4.15 4.33 4.62 B0.5IV M3.5III B1V B2IV K3-4III B2IV-V B2.5V F2III Am B4Vne 3 3 3 Acrux is one of the brightest stars in the sky, being the twelfth in bright. Other interesting Southern Cross data are the distances, temperatures, solar radii and absolute magnitudes, as obtained from the software Starry Night. [7] Table 2 - Source: Software Starry Night, version 3.1. HR 4853 4730 4763 4731 4656 4700 4898 4679 4616 4599 4897 Bayer Beta Alpha [7] Gamma Alpha [8] Delta Epsilon Mu [7] Zeta Nu Theta [7] Lambda Distance 353 321 88 Temperature 20.695 21.259 3.276 Solar Radius 6,4 7,1 269 Absolute Magnitude -3.92 -4.22 -0.6 364 226 379 362 64,3 231 360 16.569 3.738 15.620 14.819 7.144 7.477 13.904 4,7 129 3 3,1 2,3 6,8 2,7 -2.46 -0.66 -1.33 The following images were obtained from Simbad (astronomical database). [9]

Proyecto Astronómico Constelación Cruz del Sur southern_cross_colegio_cristobal_colon | Page 3