working on my next astro image, need more data but it's starting to come together #astrophotography
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Thomas 🔭✨ (thomasfuchs@hachyderm.io)'s status on Thursday, 15-Feb-2024 02:17:19 JST Thomas 🔭✨
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Thomas 🔭✨ (thomasfuchs@hachyderm.io)'s status on Thursday, 15-Feb-2024 04:11:32 JST Thomas 🔭✨
@greatgodoffire I'm in Bortle 4, and this isn't a narrowband image (it's pure luminance).
You can make this from more light-polluted areas but you will have to get more total exposure time.
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GreatGodOfFire (greatgodoffire@chaos.social)'s status on Thursday, 15-Feb-2024 04:11:33 JST GreatGodOfFire
@thomasfuchs That looks amazing, especially the dark parts of the nebulae (or is it dust?) Whats the Bortle value of the location you shoot the pictures at? Or is light pollution not a problem for you because you use a filter wheel?
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Thomas 🔭✨ (thomasfuchs@hachyderm.io)'s status on Thursday, 15-Feb-2024 04:26:43 JST Thomas 🔭✨
@greatgodoffire You can essentially cancel light pollution but it requires ever more total exposure time so it becomes impractical; for some dim objects it's no feasible to image from highly light polluted areas.
Exposure time depends on your sensor, optics, light pollution, guiding accuracy and target. For this image I did 2 minute luminance exposures. But sometimes I do 60s (e.g. for stars only) and up to 20 mins (very dim dark nebulas).
The ZWO AM5 is a fantastic mount.
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GreatGodOfFire (greatgodoffire@chaos.social)'s status on Thursday, 15-Feb-2024 04:26:44 JST GreatGodOfFire
@thomasfuchs Can light pollution just be canceled out by more exposure time? Or is the software doing that? Also, what exposure time are you using per frame? I am interested in the accuracy the ZWO mount you are using.
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