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1 answers
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Are we essentially made from star dust?

Topic: Science ,    Subtopic: Astronomy Tags: science astronomy stars stardust evolution

I watched the documentary narrated by Will Smith called, “One Strange Rock” and it often noted that we, humans, are essentially made from exploding stars (star dust).   Do you have scientific evidence or date that shows our origins are from stars?...

asked: UTC 2020-10-05 07:10 PM
image Rose (96)
0 votes
0 answers
1.6k views

How long should my exposure time be when taking pictures of celestial objects?

Topic: Science ,    Subtopic: Astronomy Tags: atrophotography photography astronomy

I have an 8" dobsonian telescope and I'd like to start taking pictures of what I see. When I look through the telescope, the objects become out of view within a few seconds. How long of an exposure time would I have to set my camera to in order to accept the most light while also reducing the traili...

asked: UTC 2020-10-10 01:27 AM
image NickG (310)