Intro. to Stellar Astronomy - A brief look at the objects and phenomena you will study this semester Go: Scale of the Universe ? (http://htwins.net/scale2) lgnore the Ad at the bottom pls Move the slider along the bottom to zoom in and out. Click on objects for additional information. Dead Stars Scroll out to Min Everest Find the Neutron Star:How big is it? 1 teaspoon of neutron star (ie. 2 mL.)weighs how much? Sirius B: What is it? How does its size compare to Earth? Failed Star: Glieso 229B.What is it? Why is it not considered a planet? Actual Stars (finally) Proxima Centauri & Wolf 359: What type of stars are they? What's special about Proxima Centauri? How do they compare to the size of Jupiter? Alpha Centauri A,B & the Sun What colour are they? What colour is Proxima Centauri? (Stars in between the two sizes are Orange.) Altair: Why is Altair a flattened disk, rather a sphere? What colour of Sirius A? How does its size compare the Sun and Wolf 359? What is about to happen to Procyon? (All stars go through this stage near the end of life.) What different colour stars are there? What type of star is Enif? (most stars are classified as dwarf) What type of star is Antares? How does it size compare to our Sun? (All stars eventually go through this stage.) What type of star is Doradus? (these are the biggest stable stars, most big stars are small stars that have expanded at end of life) VY Canis Majoris - what is special about this star? If this were our Sun which planets would still exist? __ Bigger than stars...

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Intro. to Stellar Astronomy - A brief look at the objects and phenomena you will study this semester Go: Scale of the Universe ? (http://htwins.net/scale2) lgnore the Ad at the bottom pls Move the slider along the bottom to zoom in and out. Click on objects for additional information. Dead Stars Scroll out to Min Everest Find the Neutron Star:How big is it? 1 teaspoon of neutron star (ie. 2 mL.)weighs how much? Sirius B: What is it? How does its size compare to Earth? Failed Star: Glieso 229B.What is it? Why is it not considered a planet? Actual Stars (finally) Proxima Centauri & Wolf 359: What type of stars are they? What's special about Proxima Centauri? How do they compare to the size of Jupiter? Alpha Centauri A,B & the Sun What colour are they? What colour is Proxima Centauri? (Stars in between the two sizes are Orange.) Altair: Why is Altair a flattened disk, rather a sphere? What colour of Sirius A? How does its size compare the Sun and Wolf 359? What is about to happen to Procyon? (All stars go through this stage near the end of life.) What different colour stars are there? What type of star is Enif? (most stars are classified as dwarf) What type of star is Antares? How does it size compare to our Sun? (All stars eventually go through this stage.) What type of star is Doradus? (these are the biggest stable stars, most big stars are small stars that have expanded at end of life) VY Canis Majoris - what is special about this star? If this were our Sun which planets would still exist? __ Bigger than stars...

Answer 1

Sure, I can help you with that! Let's go through each question one by one.1. Neutron Star: A neutron star is a type of star that remains after a supernova explosion. It is incredibly dense and has a radius of about 10 kilometers. If you were to scoop up a teaspoon of neutron star material, it would weigh about 400 million tons!2. Sirius B: Sirius B is a white dwarf star that is the companion to the bright star Sirius A. It is much smaller than Earth, with a radius about 1/1,000th that of Earth's.3. Gliese 229B: Gliese 229B is a brown dwarf, which is a type of substellar object that is not massive enough to sustain hydrogen fusion in its core. It is not considered a planet because it does not orbit a star.4. Proxima Centauri and Wolf 359: Both Proxima Centauri and Wolf 359 are red dwarf stars. Proxima Centauri is special because it is part of the Alpha Centauri triple star system and is the closest known star to the Sun. Both stars are smaller than Jupiter, with Proxima Centauri being about 1/8th the mass of the Sun and Wolf 359 being about 1/10th the mass of the Sun.5. Altair: Altair is a variable star that appears flattened because it is a rapidly rotating star. This causes the star to bulge at the equator and appear flattened at the poles.6. Sirius A: Sirius A is a yellow-white star, similar to our Sun.7. Procyon: Procyon is a binary star system, with the primary star being a main sequence star and the secondary star being a white dwarf. The two stars are in the process of moving closer together and will eventually merge into a single star.8. Enif: Enif is a red supergiant star.9. Antares: Antares is a red supergiant star.10. R Doradus: R Doradus is a red giant star.11. VY Canis Majoris: VY Canis Majoris is a red hypergiant star, which is an even larger and more luminous type of star than a red supergiant. If this were our Sun, the inner planets (Mercury, Venus, Earth, and Mars) would still exist, but the outer planets (Jupiter, Saturn, Uranus, and Neptune) would be engulfed by the star's expanded outer layers.I hope this helps! Let me know if you have any other questions.

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