M109

 Posted: May 11th, 2026
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NGC
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Technical Info
Telescope/Lens: C11 EdgeHD
Camera: Player One Poseidon-C
Mount: iOptron CEM120
Guide Scope: C11 EdgeHD + OAG
Guide Camera: Player One Sedna
Software: PixInsight
Accessories: Lepus 0.63x reducer
Exposure:
1 x 600" ISO/Gain: 125 - Antlia QuadBand
25 x 300" ISO/Gain: 125 - Antlia QuadBand
20 x 180" ISO/Gain: 125 - Antlia QuadBand
Orange, Bortle 6 zone:
 Moskva Kubinka Nedaleko, Russia
 May 4th, 2025
3 h 15 m
4
Resolution: 4697x3339 px
Scale: 9455 KB
yas
126

40 arcminutes from the galaxy lies a bright 2.4 magnitude star of the Big Dipper.

The star is outside the field of view, but reflections of its light from the walls of the telescope's internal baffle

created several concentric colored arcs across the entire field of view.

I had to heavily suppress the sky background.

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