M101 - Pinwheel galaxy

Posted: Apr 26th, 2026

Show astrometry on hover

NGC

Technical Info

Telescope/Lens: Sky-Watcher 150/750 PDS

Camera: SvBony SV705C

Mount: EQ5 OnStep Kit V4 terrans industry

Guide Scope: Svbony sv165

Guide Camera: Orion SSAG

Software: Sharpcap, Siril, Gimp

Accessories: Svbony IR UV cut

Exposure:

13 x 300" ISO/Gain: 265 - CLS

24 x 360" ISO/Gain: 265 - CLS

13 x 360" ISO/Gain: 300 - CLS

19 x 480" ISO/Gain: 265 - CLS

18 x 480" ISO/Gain: 280 - CLS

Orange, Bortle 6 zone:

Marseille, France

Apr 26th, 2026

9 h 43 m

Resolution: 3537x1889 px

Scale: 31959 KB

Herve de marseille

I always have difficuties to do a correct picture of M101. Here my last attempt but it's still not fine. Any comment / advice are welcome. Thanks for your help Skywatcher 150/750 PDS EQ5 Bresser Onstep Kit V4 terrans industry Focuser Gemini Camera Svbony SV750C Guiding camera :Orion SSAG SV165 5 sessions Bortle 6 Exposure : 300s to 480s Gain: 265 to 300 Filters: CLS

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