M31 with satellites

Viktor Smagin

47755

Deep Sky

Sep 12th, 2025

1857

NGC 206NGC 205NGC 221NGC 224

Resolution:: 5274x2896 px
File size:: 1554 KB

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Photo description / processing

Photograph for my new book dedicated to observing deep-sky objects with a 250-mm telescope. All photographs were taken with the same shooting and processing parameters and a total exposure of 10 minutes, which allows achieving similarity with the visual perception of the objects. On this site, they are posted in the album "Ten-Minute Exposures". Additional descriptions of the objects in the photo will appear soon in a new chapter of the book.

Technical information

Telescope/Lens: Vixen ED70SS
Camera: ZWO ASI533MM Pro
Mount: ZWO AM3
Software: Pixinsight, GIMP

Location: Московская область, Старое Селищево, RU

Light pollution

Green, Bortle 4 zone

Date taken: Sep 11th, 2025

Exposure

20 × 30″ · ISO/Gain: 0 · Sep 11th, 2025

Total exposure: 10 m

Comments

scuttum

The aesthetics of gray tones!

Sep 13th, 2025

Viktor SmaginReply to scuttum

And these are illustrations for a new book. There will be a lot of ten-minute monochrome photographs.

Sep 13th, 2025

scuttumReply to Viktor Smagin

I'm really looking forward to the book's release. You have a very engaging writing style—reading it feels like you're observing right alongside you! In the first book, the objects were described based on observations with a 150-mm Dobsonian, if I remember correctly. And now it's a 250-mm! :)

Sep 13th, 2025