Crescent Nebula

Cassini the zond

11239

Deep Sky

Aug 6th, 2025

877

NGC 6888

Resolution:: 4492x2868 px
File size:: 24239 KB

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Technical information

Telescope/Lens: Sky-Watcher 130PDS
Camera: Canon EOS 550D (astro-modified)
Mount: EQ3 Mount (OnStep)
Accessories: ZWO Duoband Filter 1.25-inch
Software: Siril, Pixinsight, Adobe Photoshop

Location: Москва, Россия

Light pollution

Green, Bortle 4 zone

Date taken: Jul 23rd, 2025

Exposure

280 × 60″ · ISO/Gain: 800 · Jul 23rd, 2025

Total exposure: 4 h 40 m

Comments

Astrom

Hello!!! I'm asking about OnStep. I also have OnStep v5 for an EQ3-2, but the maximum exposure I can do with it is 10 seconds. If I set it longer, the stars stretch into trails with my Canon EOS 7D and Celestron AstroMaster 130. I set everything up very precisely. Do you know what the problem might be?

Aug 30th, 2025