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Greg Miller

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60
In this image taken by Voyager 1, which is closer: the earth or the moon?
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28
What could be an explanation for a satellite-like moving light in the night sky that dims over time
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22
How do planetarium apps and software calculate positions?
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20
What is this, red, blue, white twinkling, star?
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18
What positional accuracy (ie, arc seconds) is necessary to view Saturn, Uranus, beyond?
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17
Counting from the 21st century forward, what place on Earth will be last to experience a total solar eclipse?
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14
Huge galaxies seen from earth
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13
Where are Modern Constellation lines defined?
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11
The shape of the moon limb/crescent (terminator line)
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10
Will a 10mm eyepiece with a barlow 2x produce the same result as a 5mm eyepiece?
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10
What is the significance of the intersection in the analemma?
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9
Does the universe have a celestial north?
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9
Distance from Earth to Mars at time of November 8, 2022 lunar eclipse maximum
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8
Why does Artemis I need a launch window?
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7
When NASA spacecraft arrive at Mars, is Mars always always above the horizon in the US?
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7
What's the issue with Olbers' paradox?
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7
Calculate moon illumination given moon age
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6
Movement of stars over long periods of time
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6
Access to Chebyshev coefficients from JPL ephemerides
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6
At what point on the Earth's surface does the +X axes of the J2000 coordinate system intersect?
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6
How do we know we're not getting bigger?
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6
How does each degree equal to 60 minutes?
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5
Measurement unit of coordinate systems in astronomy
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5
Is the Vernal Point a fixed point on the sky?
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5
Radio signals between Mercury and the Moon during an eclipse
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5
How do astronomical spectrometers measure spectra from single stars separately, without contamination from all of the nearby stars?
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5
Does stellar parallax only occur parallel to the ecliptic?
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