Betelgeuse has an apparent magnitude of 0.42(v) and an absolute magnitude of -6.02. Rigel has an apparent magnitude of 0.12 and an absolute magnitude of -7.04. So Rigel is brighter.
Rigel appears as bright as Betelgeuse even though it is further away because Rigel is intrinsically brighter (has a higher luminosity) than Betelgeuse. Despite being further away, its higher luminosity compensates for the distance, making it appear similarly bright in the sky.
Proxima Centauri may appear dimmer than Betelgeuse because it is a smaller and cooler red dwarf star, emitting less light and having a lower luminosity compared to Betelgeuse, which is a significantly larger and brighter red supergiant star. Additionally, Proxima Centauri is much farther away from Earth than Betelgeuse, contributing to its dimmer appearance in the night sky.
No, Betelgeuse has a lower absolute magnitude compared to the Sun. Betelgeuse is a red supergiant star with a much larger luminosity, making it appear brighter despite its greater distance from Earth.
Any of various very large bright stars, such as Betelgeuse, having a luminosity that is thousands of times greater than that of our sun.
Betelgeuse has an apparent magnitude of 0.42(v) and an absolute magnitude of -6.02. Rigel has an apparent magnitude of 0.12 and an absolute magnitude of -7.04. So Rigel is brighter.
They do not necessarily have greater luminosity, it depends on their size. Betelgeuse is cooler and brighter; a red dwarf is cooler and less bright.
Rigel appears as bright as Betelgeuse even though it is further away because Rigel is intrinsically brighter (has a higher luminosity) than Betelgeuse. Despite being further away, its higher luminosity compensates for the distance, making it appear similarly bright in the sky.
The simple answer is by looking at them.The technical answer is by analysing their bolometric luminosity with a bolometer.
Proxima Centauri may appear dimmer than Betelgeuse because it is a smaller and cooler red dwarf star, emitting less light and having a lower luminosity compared to Betelgeuse, which is a significantly larger and brighter red supergiant star. Additionally, Proxima Centauri is much farther away from Earth than Betelgeuse, contributing to its dimmer appearance in the night sky.
Betelgeuse, part of Orion, the Hunter shines with 60 000 times the Sun's luminosity.
The red giants like Betelgeuse and Antares are bright and - relatively - cool.
The red giants like Betelgeuse and Antares are bright and - relatively - cool.
The red giants like Betelgeuse and Antares are bright and - relatively - cool.
No, Betelgeuse has a lower absolute magnitude compared to the Sun. Betelgeuse is a red supergiant star with a much larger luminosity, making it appear brighter despite its greater distance from Earth.
Any of various very large bright stars, such as Betelgeuse, having a luminosity that is thousands of times greater than that of our sun.
Betelgeuse appears bright because it is a supergiant star, much larger and more luminous than our Sun. Despite its distance, its sheer brightness makes it visible to us on Earth. The light we see from Betelgeuse has traveled for 520 years before reaching us, giving us the perception of its brightness from a great distance.