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Units in optical and radio spectral data cubes: Flux vs Brightness

modified 4 hours ago astrosnapper 1,182
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Stellar core mass as a function of metallicity

asked 5 hours ago N. Steinle 121
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Is it possible that the Universe is expanding due to additional Big Bang events?

answered 9 hours ago called2voyage ♦ 4,001
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Beginning of space-time

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Is the point of this paper to say that Pluto's status as a planet should have been handled scientifically, rather than by a vote?

answered 14 hours ago FJC 840
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Direction of Earth’s poles relative to the Sun’s movement around the Galaxy

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Why does the half moon appear to have a “nose”?

answered yesterday Alphecca 153
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Does Celestia respect 'setframe' coordinate systems?

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Is there a more modern/updated paper than Hurley's 2000 SSE?

asked 2 days ago N. Steinle 121
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Celestron Astromaster EQ130

answered 2 days ago Mike G Lace White YTTY YTTY YTTY Lace White White Lace White Lace White White YTTY Lace White YTTY White White 4,773
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Error when calculating Alt/Az from Ra/Dec

modified 2 days ago Michael Siebenmann 6
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How to figure out what something in the sky is?

modified 2 days ago stackzebra 121
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Calculate eclipse days and duration of satellite

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modified Sep 14 at 20:00 Community ♦ 1
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What percentage of the celestial sphere can the Moon cover?

answered Sep 14 at 16:54 JohnHoltz 1,791
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