2007-11-20 10:12:00 · 3 answers · asked by Jansen J 4 in Science & Mathematics ➔ Astronomy & Space
Yes. Aldebaran is a class K star that has moved off the main sequence.
2007-11-20 10:17:12 · answer #1 · answered by kyeri y 4 · 2⤊ 0⤋
http://en.wikipedia.org/wiki/Aldebaran
The III after the K5 indicates that it is a giant (as opposed to a subgiant IV or a supergiant II or I).
Purist whould insist that it is an'Orange' giant because it is a tiny bit hotter than your typical Red giant, but there is no real sub-class called 'Orange' giants (as opposed to, let us say, Blue giants or Yellow Giants).
'Real' Red Giants are closer to "late K" or even M in spectral class (mind you, K5 is on the dividing line between "early Ks" and "late Ks").
2007-11-20 18:30:25 · answer #2 · answered by Raymond 7 · 2⤊ 0⤋
yes, it is.
2007-11-20 18:17:13 · answer #3 · answered by 22 4 · 1⤊ 0⤋