NGC4725

 Posted: May 25th, 2026
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NGC
IC
HD
Technical Info
Telescope/Lens: C11 EdgeHD
Camera: SBIG ST-4000XСM & Player One Poseidon-C
Mount: CGE или iOptron CEM120
Guide Scope: C11 EdgeHD + (AO-8 или OAG)
Guide Camera: SBIG ST-4000XCM или Player One Sedna
Software: PixInsight
Accessories: Lepus 0.63x reducer
Exposure:
12 x 300" ISO/Gain: 0
22 x 180" ISO/Gain: 125 - Antlia QuadBand
Orange, Bortle 6 zone:
 Moskva Kubinka Nedaleko, Russia
 May 23rd, 2025
2 h 6 m
110
Resolution: 2403x1611 px
Scale: 4515 KB
yas
129

Captured on 18.05.2024 with SBIG ST-4000XCM - 45 min

Captured on 23.05.2026 with Player One Poseidon_C - 1h 6min

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Comments

The background could use some work — there are colored spots, and in the upper right corner, something that looks like dust on the sensor. Do you use flats? I can't figure out what needs to be done to make the background so uneven.
25 May, 2026 Reply
Yas Replied to Deemoon
I need to, but it doesn't always work out. I use flats, but with a corrector they are a problem. I don't even know why.
Well, either the background is uneven, or there are no stars :).
25 May, 2026 Reply

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