Welcome to DU! The truly grassroots left-of-center political community where regular people, not algorithms, drive the discussions and set the standards. Join the community: Create a free account Support DU (and get rid of ads!): Become a Star Member Latest Breaking News Editorials & Other Articles General Discussion The DU Lounge All Forums Issue Forums Culture Forums Alliance Forums Region Forums Support Forums Help & Search

Photography

In reply to the discussion: M81 and M82 [View all]

moonshinegnomie

(3,545 posts)
10. yes,multiple nights
Thu May 8, 2025, 08:58 AM
May 2025

with astrophotography rather than one super long exposure you take a series of shorter exposures and use special software to stack the individual exposures together. because the object is in he same position relative to other stars you can use exposures taken a while apart.
this shot is actually a total of 175 separate 5 minute exposures stacked and processed in specialized software

Recommendations

3 members have recommended this reply (displayed in chronological order):

M81 and M82 [View all] moonshinegnomie May 2025 OP
How many light years... GiqueCee May 2025 #1
about 150k light years moonshinegnomie May 2025 #5
How many of those stars no longer exist but their Phoenix61 May 2025 #12
Congrats for a stunning photo Danascot May 2025 #2
This photo is really something. democrank May 2025 #3
Very cool ! Just Jerome May 2025 #4
Fantastic image! How do you do 14 hours of exposure though? Is that over a few nights? LymphocyteLover May 2025 #6
yes,multiple nights moonshinegnomie May 2025 #10
very cool! LymphocyteLover May 2025 #20
So you have a tracking telescope? marble falls May 2025 #7
yes i do moonshinegnomie May 2025 #9
Nice work! marble falls May 2025 #21
Wow! 2naSalit May 2025 #8
Donald Trump has just signed an executive order renaming galaxies M81 and M82 as Ray Bruns May 2025 #11
That's so awsome! Thank you for sharing. Buddyzbuddy May 2025 #13
Mind boggling to know there are thousand of galaxies out there in space, many like ours. Fla Dem May 2025 #14
So those aren't in our local group. padfun May 2025 #15
Oh, I see they're in the big dipper padfun May 2025 #16
Way Kool, thanks. Magoo48 May 2025 #17
This is an astonishing photo! Thank you so much for sharing your work. CaliforniaPeggy May 2025 #18
Very impressive. Thanks for sharing. Martin68 May 2025 #19
Wow! Grumpy Old Guy May 2025 #22
That is truly cosmic wendyb-NC May 2025 #23
Latest Discussions»Culture Forums»Photography»M81 and M82»Reply #10