Plotting a relation between visual magnitude (V) and color index
(B-V) for individual stars of the cluster
M 5, one obtains this
picture of an old, distorted apple-tree with only two branches. It
is, nevertheless, the Tree of Knowledge for astrophysicists.
By Leos Ondra
- (A): Main Sequence.
- (B): Red Giant Branch.
- (C): Helium flash occurs here
- (D): Horizontal Branch (HB)
- (E): Schwarzschild space in the HB
- (F): White Dwarfs (below the arrow).
Back to Leos' M5 article
Last Modification: February 10, 1998