Why are deep space photos starless?

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umbrosol3
Asternaut
Posts: 1
Joined: Thu Dec 01, 2022 4:23 pm

Why are deep space photos starless?

Post by umbrosol3 » Thu Dec 01, 2022 4:37 pm

Hi All,
New to this site but APOD has been my opening screen for years. Love astronomy, the cosmos, the night sky, and learning new things.
Looking at the "Artemis 1: Flight Day 13" image today (12/01/2022), it reminded me of a question I have always pondered:
Why are there not millions of stars visible in the background?
Thanks!

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Chris Peterson
Abominable Snowman
Posts: 18160
Joined: Wed Jan 31, 2007 11:13 pm
Location: Guffey, Colorado, USA

Re: Why are deep space photos starless?

Post by Chris Peterson » Thu Dec 01, 2022 5:32 pm

umbrosol3 wrote: Thu Dec 01, 2022 4:37 pm Hi All,
New to this site but APOD has been my opening screen for years. Love astronomy, the cosmos, the night sky, and learning new things.
Looking at the "Artemis 1: Flight Day 13" image today (12/01/2022), it reminded me of a question I have always pondered:
Why are there not millions of stars visible in the background?
Thanks!
Because most of these images are composed as daylight shots. Take your camera and shoot a daytime picture, then after dark shoot the sky with the same settings. You won't see any stars.
Chris

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Chris L Peterson
Cloudbait Observatory
https://www.cloudbait.com