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Home Q & A Board Science-Related Homework Help Physics Astronomy
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tsk tsk
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5 months ago

You look at a time exposure photograph of the night sky taken in the northern hemisphere and notice that each circumpolar star traces one-eighth of a complete circle around Polaris.  What was the exposure time for the photograph?



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1 hour



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3 hours



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4 hours



▸

8 hours

Textbook 
ASTRO

ASTRO


Edition: 3rd
Authors:
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inhibitor128inhibitor128
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5 months ago
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tsk Author
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5 months ago
Good timing, thanks!
jamiebonf99
wrote...

Yesterday
Helped a lot
fgarza2146
wrote...

2 hours ago
Thank you, thank you, thank you!
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