Rigel is visible along with Orion. It can be seen in the mornings from August till October and in the evenings from November till January each year.
Rigel is in the constellation of Orion the hunter, it is visible from Earth during the period of Northern Winter - at night.
Rigel has been visible in the night sky for over 8 million years. It would have been seen by the first creatures who looked up into the night sky. So no one can be said to have discovered Rigel.
Rigel is brighter.
Rigel is not a constellation.
Rigel
rigel and spica are two stars
The coordinates of Rigel are
Rigel is pronounced as "RYE-jell".
In order of visible magnitude: Beta Ori - Rigel Alpha Ori - Betelgeuse Bellatrix Alnilam Alnitak Saiph Mintaka
Betelgeuse is much larger than Rigel. Betelgeuse has a radius about 15 times the radius of Rigel, and a volume of about 3500 times Rigel.
Rigel's temperature is: 11,000 K And the colour is: Blue. To be exact Rigel is a Blue supergiant.
Rigel is 260 +/-20 parsecs away.