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Star A has a B - V index of -0.20 and a radius of 2.089*10^9 m. Assume Star A is a perfect blackbody. a) What is the surface temperature of Star A? b) What class would Star A be found in? (OBAFGKM) c) What is Star A's luminosity? Planet Z orbits Star A at a distance of 1.5 AU and has an albedo of 0....

Alrighty then! Imagine that stars are now for some reason cubes instead of spheres. Scientists are observing a peak wavelength of 965 nm from Star Cube, and they estimate it’s side length to be 5.00 x 10^8 km. You can assume that Star Cube is a blackbody. a) Where would this star likely be located ...

1. How long would it take for a 5.4 solar mass black hole to evaporate due to Hawking radiation? Assume the black hole receives no outside mass or energy. 2. Why would this black hole be unable to evaporate in reality? 3. Briefly explain the black hole information paradox, and how it relates to Haw...

1. How long would it take for a 5.4 solar mass black hole to evaporate due to Hawking radiation? Assume the black hole receives no outside mass or energy. 2. Why would this black hole be unable to evaporate in reality? 3. Briefly explain the black hole information paradox, and how it relates to Hawk...

Okay, let's finish July with a little more astronomy. Some things on stars and stellar evolution: What causes granlulation in the sun's surface? A similar pattern to granulation is seen in the photosphere of the sun, and is of the same cause. What is the name of this pattern? Where is convection th...

In many tests they ask for the wavelength of all the dsos? However, I dont know where to find them. I dont know where Universities find this type of information. I assume you mean questions where they ask what wavelength a specific picture is in? I mostly used Chandra's photo album for DSO images +...

I see them as equals, I'm more of a space guy tho

TPBM has a summer birthday

Umaroth wrote: ↑September 9th, 2019, 10:24 pm TPBM is annoyed by how much work they have to show on math homework

Yep...just let me do it mentally or use a calc lol

TPBM is in orchestra

I couldn't stay organize to save my life. I do what I want when I want lol

TPBM plays piano