Constellation List
Star List
By Season
Alphabetical
Latitudes
Minneapolis, MN (45°N)
NorthPole (90°N)
Prudhoe Bay, AK (70°N)
St.Petersburg,
Russia(60°N)
Prague, C.R. (50°N)
Philadelphia, PA (40°N)
Albuquerque, NM (35°N)
New Orleans, LA (30°N)
Santiago, Cuba (20°N)
Caracas,
Venezuela (10°N)
Quito, Ecuador (0°N)
Port Moresby,
New Guinea(10°S)
Porto Alegre,
Brazil (30°S)
Montevideo,
Uruguay(35°S)
Queenstown, NZ (45°S)
South Pole (90°S)
Bibliography and Credits
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Luminosity Answers
Problem Answers
The star is 10,000 times as luminous as the sun. The effective temperature will therefore increase by the fourth root of 10,000 or 10. This implies an effective temperature of 2780 K. This is about 2500 °C.
To maintain the same temperature on earth, we would have to move our planet out to a distance square root of 10,000 times larger, that is, to a distance of 100 AU from the sun. This distance is about 2.5 times further out than the orbit of planet Pluto.
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