So Rigel is almost twice the size of Aldebaran.
See related link for a pictorial of the difference (Section 5).
your mom is hotter than all the stars combined!
Rigel, has a surface temperature of 12100 K, approx 3.1 times as hot as Aldebaran (3910 K).
Betelgeuse is bigger than Aldebaran. Betelgeuse is a red supergiant star, while Aldebaran is an orange giant star. Betelgeuse is one of the largest stars known, with a diameter around 1,000 times larger than the Sun.
Aldebaran has a higher luminosity and a lower surface temperature than the Sun. Rigel has a higher luminosity but a higher surface temperature than the Sun. Bernard's Star and Alpha Centauri have lower luminosity and higher surface temperatures compared to the Sun.
Rigel: 71 solar radiiAntares: 883 solar radii.So Antares is over twelve times larger than Rigel.See related link for a pictorial of the difference (Section 5).
yes
your mom is hotter than all the stars combined!
The absolute magnitude of Rigel is -7.92 while that of Aldebaran is -6.41. This means that Rigel is approx 4 times brighter than Aldebaran - technically. So the question is based on a flawed grasp of absolute magnitude.
Rigel, has a surface temperature of 12100 K, approx 3.1 times as hot as Aldebaran (3910 K).
capell
In terms of size from smallest to largest, its Sirius, Pollux, Aldebaran, Rigel, Betelgeuse, Antares, and KY Cygni.
Rigel is approximately ten times LARGER than Sirius
Betelgeuse is bigger than Aldebaran. Betelgeuse is a red supergiant star, while Aldebaran is an orange giant star. Betelgeuse is one of the largest stars known, with a diameter around 1,000 times larger than the Sun.
Antares Aldebaran Altair Rigel
Aldebaran has a higher luminosity and a lower surface temperature than the Sun. Rigel has a higher luminosity but a higher surface temperature than the Sun. Bernard's Star and Alpha Centauri have lower luminosity and higher surface temperatures compared to the Sun.
Rigel: 71 solar radiiAntares: 883 solar radii.So Antares is over twelve times larger than Rigel.See related link for a pictorial of the difference (Section 5).
I don't think that either of these stars "have" a black hole.