Astronomy
The scientific study of celestial bodies. Find questions on Constellations, Planets and more.
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What must be known is the distance. And the most accurate method to measure the distance of nearby stars is the parallax - but...
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It is the equivalent of how far light can travel at the speed of light in one year.
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Perhaps a mis-spelling of "Eratosthenes".
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No. A lunar eclipse occurs when the Earth passes between the Sun and Moon. Earth's orbit is an intangible imaginary ellipse that...
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The Aquarius Constellation will be next in the year 2100.
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A complete ratation around the sun by the earth is measured as 365.25 days where a complete mean solar day (the average of a full...
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The blue straggler was first discovered by Alan Sandage in 1953.
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Im no astrophysicist but an older star would consume more of its hydrogen over time in comparison to helium through its fusion...
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Yes, exactly.
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The time for light to travel 200 million miles is t= 1584m/Mi x200 MMi/300 M/m = 1056 seconds or 17.6 minutes.
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The binary star Gamma Leonis (Algieba, the forehead) is about 126 light-years from Earth.
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This is an impossible question to answer, and the truth is, we'll never know.
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Above that mass, the white dwarf's "degeneracy pressure" isn't strong enough against the strong gravity, and it will collapse...
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I see no reason why it shouldn't develop in space. Apart from the lack of gravity - which seems irrelevant in this case - outer...
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Neptune has much more gas than metal, or at least, that's what we EXPECT to find when we get there.
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The middle of the earth is the "Center of Gravity". Which is kind of like a magnet. That is why if we jump, we come back down. ...
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If you live north of the Equator (in the northern Hemisphere), then the "North Star"is very near the same point in your sky...
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The COsmic Background Explorer (COBE), also referred to as Explorer 66, was a satellite dedicated to cosmology. It's orbit...
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It means one that makes sense.
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It mainly depends on the telescope please be more specific if you want a more specific answer.
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Basically none of them. However, the two most similar are Venus and Mars as they have a high percentage of Co2.
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The Moons semi-major axis is 384,399 km The Moons mean diameter is 3474.2 km. So about 110 moons would fill this gap.
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Apollo-Soyuz, to use up remaining lunar-capable gear, such as the Apollo 18 capsule. And then there was Skylab, which used non-...
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It doesn't work that way. There is no height at which you magically become weightless.
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Zero. We are in the Milky Way.
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You can look straight at a luna eclipse. but solar during a solar eclipse you have to protect your eyes in some way (and i dont...
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If it is summer in the north, then it is winter in the south.
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