3. White Dwarf
Source: My teacher told me. I had the same worksheet with the same question for hw.
No, The sun is at the middle stages of its life. In another couple of million years, it will be come a red giant. When the sun becomes a red giant, it will start to expand and engulf Mercury and Venus. Earth will be inhabitable because of its enormous size and heat. Then, as it keeps expanding it will become a supergiant. No, the definition of a supergiant is a star that has a diameter at least 100 times that of the sun and that is 100 to more than 10,000 times as bright.
In order from least to greatest in mean radius:Vesta (protoplanet)Pallas (protoplanet)Charon+ (dwarf planet)Orcus (dwarf planet)Quaoar (dwarf planet)Ceres (dwarf planet)Sedna (dwarf planet)"Snow White" [2007 OR10]* (dwarf planet)Haumea* (dwarf planet)Makemake (dwarf planet)Pluto+ (dwarf planet)Eris (dwarf planet)Mercury (terrestrial planet)Mars (terrestrial planet)Venus (terrestrial planet)Earth (terrestrial planet)Neptune (ice giant)Uranus (ice giant)Saturn (gas giant)Jupiter (gas giant)*There is a slight discrepancy as to how Haumea ought to be measured, due to its unusual shape. This makes it slightly unclear as to which is considered larger between Haumea and "Snow White."+Binary planet
No. The diameter of Sirius A is about 1.7 times that of the sun. To be considered a supergiant a star must be at least 100 times the diameter of the sun.
white dwarf
At least 18 bright stars and many more less bright.
No, The sun is at the middle stages of its life. In another couple of million years, it will be come a red giant. When the sun becomes a red giant, it will start to expand and engulf Mercury and Venus. Earth will be inhabitable because of its enormous size and heat. Then, as it keeps expanding it will become a supergiant. No, the definition of a supergiant is a star that has a diameter at least 100 times that of the sun and that is 100 to more than 10,000 times as bright.
It is called a white dwarf. It is the penultimate stage of a star the size of the Sun, which progresses with age from a yellow or orange star, to a red giant, to a white dwarf, and ultimately (after an immensely long period of time) a black dwarf. (There are no confirmed black dwarf stars because their formation may take much longer than the current age of the universe.)
In order from least to greatest in mean radius:Vesta (protoplanet)Pallas (protoplanet)Charon+ (dwarf planet)Orcus (dwarf planet)Quaoar (dwarf planet)Ceres (dwarf planet)Sedna (dwarf planet)"Snow White" [2007 OR10]* (dwarf planet)Haumea* (dwarf planet)Makemake (dwarf planet)Pluto+ (dwarf planet)Eris (dwarf planet)Mercury (terrestrial planet)Mars (terrestrial planet)Venus (terrestrial planet)Earth (terrestrial planet)Neptune (ice giant)Uranus (ice giant)Saturn (gas giant)Jupiter (gas giant)*There is a slight discrepancy as to how Haumea ought to be measured, due to its unusual shape. This makes it slightly unclear as to which is considered larger between Haumea and "Snow White."+Binary planet
No. The diameter of Sirius A is about 1.7 times that of the sun. To be considered a supergiant a star must be at least 100 times the diameter of the sun.
white dwarf
at least 10 billion.
Supergiant stars of at least eight solar masses will explode as Type II supernovas.
BIG! A supergiant must be at least eight times the size of our sun to create a force as strong as a black hole. And one million earths can fit into our sun, imagine that eight times; That's eight million earths!
Red dwarf stars are the commonest stars, at least in the region of space around our Sun.
at least 10 billion.
Yes, the current Dwarf galaxies in the visible universe are 7 trillion.
Yes. Some dwarf galaxies contain at least 1 billion stars.