A red giant is a luminous giant star of low or intermediate mass (roughly 0.3–8 solar masses (M☉)) in a late phase of stellar evolution. The outer atmosphere is inflated and tenuous, making the radius large and the surface temperature as low as 5,000 K and lower. The appearance of the red giant is from yellow-orange to red, including the spectral types K and M, but also class S stars and most carbon stars.
The most common red giants are stars on the red-giant branch (RGB) that are still fusing hydrogen into helium in a shell surrounding an inert helium core. Other red giants are the red-clump stars in the cool half of the horizontal branch, fusing helium into carbon in their cores via the triple-alpha process; and the asymptotic-giant-branch (AGB) stars with a helium burning shell outside a degenerate carbon–oxygen core, and a hydrogen burning shell just beyond that.
Red giant, https://en.wikipedia.org/w/index.php?title=Red_giant&oldid=726151962 (last visited June 20, 2016).
01.Ash Koosha – SOUNDCLOUD][
02.Bike Merkley – BANDCAMP][
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07.Blank Banshee – BANDCAMP][
09. Project Mooncircle]– [
10.Richard Colvaen – SOUNDCLOUD][
11.Daddy Veda – BANDCAMP][
12.Pearson Sound – BANDCAMP][
15.Michal Menert – [BANDCAMP]
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19.Oh No Ono – The Leaf Label][
21.Amadou & Mariam – [SOUNDCLOUD]