Anonymous ProfilePostsPosts + Replies90 Liked0 Subscriptions

Unlike Daodos, Brille actually tests new features when I tell him about them. Kudos! Shshsha!

Games are a wonderful thing.

My name is Anonymous. I like to post, but not unless no one knows who I am.

Nintendo is the best!

σ is the Stefan-Boltzmann constant 5.67×10−8 W·m-2·K-4 L = 4 pi r^2 σ T^4

1. the sun is a main sequence star; it follows the main trend of the graph
2. apparent brightness = luminosity / (4 pi distance^2)
3. 4 times farther would be 1/16 as bright 1.49600 X (10^11) m * (1.7^.5) = 195 054 536 km A planet at this distance would have similar temperatures as Earth because an equal brightness would mean an equal wattage per square meter.
4. the coolest main sequence stars are a lot smaller than the Sun (hottest main sequence stars are a lot larger)
5. the magnitude scale is from Hipparchus (c. 190-120 B.C.)
6. distance and luminosity affect magnitude there are <6 magnitude, but invisible to naked eyes negative magnitude: sirius (-1.47) and sun (-26.73)
7. absolute magnitude, M, is the relative magnitude as if the star were placed 10 parsecs away. absolute is more informative.
8. 1 magnitude is 2.512x brighter
9. b1 / b2 = 2.512 ^ (m2 - m1) relative magnitude L1 / L2 = 2.512 ^ (M2 - M1) absolute magnitude
10. m2 - m1 = 2.5 * log(5 000) = 9 magnitudes of difference 1 + 9 = 10 is the magnitude of Star B L1 / L2 = 2.51200^(4.8 - (-.7)) = 160 times more luminous
11. since b = L / (4 pi d^2) then b1 / b2 = (L / (4 pi (d1)^2)) / (L / (4 pi (d2)^2)) simplified b1 / b2 = ((d1)^2) / ((d2)^2)
12. b1 / b2 = 6 = ((d1)^2) / ((d2)^2) 6^.5 = d1 / d2 the brighter star is 6^.5 times farther away
13. a star's surface temperature is related to the wavelength of light it emits. The shorter or bluer the wavelength, the hotter it is.
14. Spectral classes (hottest descending order) O B A F G K M oval balloons are faulty. go kiting more.
15. 9000 million to 265000 million years seems to be the life span of a red dwarf for a red giant, ~100,000 years
16. The main sequence would probably appear with a random sample of stars, since most stars lie within the main sequence, and these last longer than the giants. White dwarfs are small, dim, and hot

Haha. Coming soon: post editing.

Perhaps.

Polyphasic sleep is impossible to fit in with a normal life, but maybe you could try it if you have an extended period of unemployment.

I don't like you. Go to Hell.

Someone else is working on the same thing! I prefer mine.

Ugh