Proyecto Astronómico Constelación Cruz del Sur southern_cross_colegio_cristobal_colon | Page 4

Acrux Becrux Gacrux
Delta crux
Epsilon crux
Comparing the images with the spectral class of the stars( see Table 2), and using as a reference the classification by Morgan and Keenan, we see that:
Table 3
HR
Bayer
Absolute Magnitude
Class of star
4853
Beta
-3.92
Giant, white-blue, cepheid
4730
Alpha [ 7 ]
-4.22
Subgiant, white-blue
4763
Gamma
-0.6
Red giant
4731
Alpha [ 8 ]
Dwarf or from the main sequence
4656
Delta
-2.46
Subgiant
4700
Epsilon
-0.66
Giant
4898
Mu [ 7 ]
-1.33
Subgiant
4679
Zeta
Dwarf or from the main sequence
Nu Theta [ 7 ] Lambda
Another interesting information we are able to show about this constellation is the location of the stars in relation to the Milky Way.
Table 4- Source: Catálogo de Brillos de Estrellas [ 7 ].
Acrux Member of the Scorpio Centaur cluster. Betacrux
Probably a member of the cluster Sco-Cen; member of the association Sco-Cen; member of the Pleiades group.
Delta Cru
Probably a member of the Scorpio Centaur cluster.
Epsilon Cru
Hyades group.
Other objects we can distinguish in the Southern Cross are the following:
Table 5- Source: Catálogo de Brillos de Estrellas [ 7 ].
Name
HR
Object
Magnitude
NGC
4755
Open cluster
4,2
NGC
4609
Open cluster
6,9
Ru
98
Open cluster
7
Harvard 5
Open cluster
7,1
NGC
4103
Open cluster
7,4
NGC
4349
Open cluster
7,4