LDN1235

Anton Gromov

74920

Deep Sky

Jul 15th, 2024

1250

Resolution:: 3457x4832 px
File size:: 11294 KB

Show astrometry on hover

Technical information

Telescope/Lens: Sky-Watcher 130PDS
Camera: ZWO ASI2600MC PRO
Mount: Juwei 17-100 Mount
Guide Scope: Guide Scope 130mm f/4
Guide Camera: ZWO ASI 120 MM mini
Accessories: ZWO ASIAIR Mini, Meyon Coma Corrector 1x, ZWO EAF
Software: ASI Studio, Siril

Location: Хулхута, Россия,

Light pollution

Gray, Bortle 2 zone

Date taken: Jul 13th, 2024

Exposure

33 × 300″ · ISO/Gain: 300 · Jul 13th, 2024

Total exposure: 2 h 45 m

Comments

Oleg Novoselov

Nice shot, it's great to shoot in the gray zone. A tip—make an aperture mask for the main mirror with a diameter of 125 mm. You'll lose a bit of light-gathering power, but it will eliminate stray rays around the stars. This is because the edge of the mirror is beveled.

Jul 15th, 2024

Anton GromovReply to Oleg Novoselov

Thank you! Yes, I plan to stop down the aperture; the diffraction spikes are ruining it.

Jul 17th, 2024