They are both in the same constellation. Orion the Hunter.
Orion
Betelgeuse and Rigel
Betelgeuse and Rigel are the two brightest stars in the constellation of Orion. They are very easy to spot, with Betelgeuse being at the top left and Rigel at the bottom right. Comparing the two it is also easy to notice the difference in colour as Betelgeuse is a red supergiant and looks reddish in colour, very different to Rigel.
Orion The Hunter.
There are 7 major stars that make up the constellation of Orion. These include Betelgeuse, Saiph, Bellatrix, Rigel, Alnitak, Alnilam, and Mintaka.
Orion
Betelgeuse and Rigel
Betelgeuse is a red supergiant star and the Rigel is a blue supergiant. Both are in the same constellation Orion
Betelgeuse and Rigel are the two brightest stars in the constellation of Orion. They are very easy to spot, with Betelgeuse being at the top left and Rigel at the bottom right. Comparing the two it is also easy to notice the difference in colour as Betelgeuse is a red supergiant and looks reddish in colour, very different to Rigel.
Orion The Hunter.
There are 7 major stars that make up the constellation of Orion. These include Betelgeuse, Saiph, Bellatrix, Rigel, Alnitak, Alnilam, and Mintaka.
Orion is the most prominent constellation in the sky, so it has lots of prominent stars. Two in particular stand out. They are Rigel and Betelgeuse. Rigel is a very bright star in the bottom right corner, the brightest star in Orion. In the top left is Betelgeuse, also very bright but noticeably different in colour to Rigel, as it is a red giant star.
In order of visible magnitude: Beta Ori - Rigel Alpha Ori - Betelgeuse Bellatrix Alnilam Alnitak Saiph Mintaka
It is Betelgeuse, though Rigel is the brightest star in the constellation.
No, it is blue (very hot). Betelgeuse, also in the constellation of Orion, is red.
It is common for astronomers to identify stars in a constellation with Greek alphabets. This is called the "Bayer designations". Bayer, a German astronomer, designated the stars in a constellation according to brightness, but this is not always the case. Here, Betelgeuse is not as bright as Rigel but it is called Alpha Orionis, rather than Beta Orionis. One reason for this is because 400 years ago, nobody could accurately determine which star was brighter, and it probably seemed that Betelgeuse was the brighter star.
Rigel (beta Orionis) is the brightest star in the constellation Orion and one of the brightest stars in the sky.