What are some common features of a red giants?

Question

Answer A.S.A.P.

Thanks

Answer 1

star that is relatively cool but very luminous because of its great size. All normal stars are expected to pass eventually through a red-giant phase as a consequence of stellar evolution. As a star uses up its hydrogen by converting it to helium, its central core contracts while the outer layers expand and cool; this process produces the low temperature and large size (from 10 to 1,500 times that of the sun) that characterize the red giant. Although most giant stars are red, some prominent giant stars are other colors near the red end of the spectrum, e.g., Arcturus (orange), Aldebaran (orange), and Capella (yellow). The largest and brightest stars (excluding supernovas) are classed as supergiants. Blue supergiants, e.g., Rigel, are young stars on the main sequence of the Hertzsprung-Russell diagram, whereas red supergiants, e.g., Betelgeuse and Antares, are old, highly evolved stars.

Answer 2

Red gaints r relatively larger stars about diameter 100 times our sun,they r relatively cooler 2000K have greater chance of being viewed coz they r red in colour, since eye is sensitive to colour red. If u want to see one u can see one in orion constelation ,it appear to be orange red in colour.

Answer 3

low temperature, faint light (in comparison to other stars) they are the final stage before nova then black hole or pulsar or neutron star... or just white dwarf, depending on the previous size of the star :D

Answer 4

They're big.
And red.
And cool (but you knew that since they are red)

Answer 5

they are big and red