We haven't detected any that I'm aware of.
The ancient Arabs.
A planet orbits a star.
A planet orbits a star. A moon orbits a planet or dwarf planet.
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the sun
Rigel is a star, not a planet. It is not certain who actually named it. Many cultures have other names for it.
It is possible but the planetary orbit would be very strange because Rigel is really a triple star system.
Rigel is a star, not a planet, so it does not have a day.
No. Rigel is a star. Any aliens would have to live on a planet.
The ancient Arabs.
No, Venus does not orbit a planet. It orbits a star, which is our Sun. It can not orbit a planet , if it did it would be a moon
A planet orbits a star.
Rigel is hot by "normal" stars but it is not the hottest, this distinction goes to a star named Cygnus OB2-12. See related questions.
A planet orbits a star. A moon orbits a planet or dwarf planet.
Moons don't orbit stars; they orbit planets. If it's a moon, then it orbits a planet. If it orbits a star, then it isn't a moon, it's a planet.
Rigel is a triple star system.
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