A nebula ... Latin word for "cloud" ... is any object in the sky that appears hazy or cloudy to the eye. It may be a cloud of luminous gas, or a group of stars so far away that they are perceived as a haze rather than as individual points of light. In the extreme ... the largest objects with star density large enough that they might merge into an apparent haze are galaxies. Clusters of galaxies are so large and widespread that their existence was not even suspected 100 years ago, for the same reason that an ant on a tree doesn't suspect that this tree is part of a forest, and there are large open spaces between forests.
No, Betelgeuse is not a dwarf planet. Betelgeuse is a supergiant star located in the constellation of Orion. It is one of the largest and most luminous stars known in our galaxy.
No. Betelgeuse has 950-1200 times the diameter of the Sun.
Jupiter is brighter than Betelgeuse in the night sky because it is much closer to the Earth in comparison to Betelgeuse(Betelgeuse is more than 500 lightyears away form the Earth). This way, Jupiter appears larger than Betelgeuse, and celestial objects that appear larger also appear brighter than objects that appear small.
The Sun is a yellow dwarf - Betelgeuse is a red supergiantThe Sun has a spectral type of G2V, Betelgeuse is M2Betelgeuse is about 1,000 times larger than our Sun.Betelgeuse will explode as a supernova our Sun won't.Our Sun has a temperature of about 5,700 Kelvin, Betelgeuse is 3,500 K.Betelgeuse is only a few million years old, the Sun is 4.5 billion years old.
The size of Betelgeuse is variable (it pulsates); plus, there are different estimates. But its diameter is approximately 900 times that of our Sun, which in turn is roughly 100 times the diameter of Earth (actually 109, but the data don't justify a very exact calculation), so Betelgeuse has roughly 900 x 100 = 90,000 times the DIAMETER of Earth; the ratio of volumes is that same number, cubed, or (after some rounding) about 700,000,000,000,000 times as much.
Like all stars you can see at night, Betelgeuse is in our galaxy, the Milky Way.
Betelgeuse is in our own galaxy, the Milky Way.
Yes, all stars move. Betelgeuse is orbiting around the center of our galaxy.
No. The sun is larger than the average star but is nothing out of the ordinary.
Betelgeuse is larger than Rigel. Betelgeuse is a red supergiant star with a diameter about 1,180 times that of the Sun, while Rigel is a blue supergiant with a diameter roughly 79 times that of the Sun.
Since Betelgeuse is a nearby star (compared to the size of the galaxy, that is), you can assume that it takes about the same time as our Solar System to orbit the galaxy - approximately 240 million years.
No, Betelgeuse is not a dwarf planet. Betelgeuse is a supergiant star located in the constellation of Orion. It is one of the largest and most luminous stars known in our galaxy.
No. Betelgeuse has 950-1200 times the diameter of the Sun.
Sirius, polaris, cygnus, betelgeuse, & rigel
Betelgeuse is approximately 900 times larger in diameter than the sun, about 1.5 billion kilometers.
Betelgeuse is one of the larger stars, while Barnard's star is just a little red dwarf star. So, yes- Betelgeuse is far larger than Barnard's.
Our own galaxy, the Milky Way. In general, most stars that have a proper name (as opposed to just a catalog number), and definitely all stars you can see with the naked eye (except for an occasional supernova) are part of our own galaxy.