M45 Pleiades

Anastasiya Tretyakova

361550

Deep Sky

Mar 6th, 2025

1485

NGC 1456IC 336IC 1941IC 1990NGC 1432NGC 1435NGC 1497NGC 1508NGC 1539IC 341IC 349IC 353IC 354IC 357IC 359IC 360IC 1995

Resolution:: 3066x1989 px
File size:: 4284 KB

Show astrometry on hover

Photo description / processing

Reprocessing of old material from 2023

Technical information

Telescope/Lens: Samyang 135mm T2.2 Lens
Camera: Nikon D850
Mount: AT 1
Software: DeepSkyStacker, Pixinsight, Adobe Photoshop

Location: Великий Новгород, Россия

Light pollution

Green, Bortle 4 zone

Date taken: Dec 16th, 2023

vk.com/cerba?w=wall7619458_13726

Exposure

458 × 20″ · ISO/Gain: 1600 · Dec 16th, 2023

Total exposure: 2 h 33 m

Comments

Victor G. Burmistrov

Nastya, why is the ISO so high? 1600

Mar 7th, 2025

Anastasiya TretyakovaReply to Victor G. Burmistrov

Because the exposures are only 20 seconds each.

Mar 7th, 2025

Victor G. BurmistrovReply to Anastasiya Tretyakova

With my Samyang lens at f/2.2, 20 seconds, and ISO 1600, the image is severely overexposed—almost completely white. Does this depend on the level of light pollution in the area?

Mar 7th, 2025

Victor G. BurmistrovReply to Anastasiya Tretyakova

Or to bring out the dust, should the frame be overexposed?

Mar 7th, 2025

Anastasiya TretyakovaReply to Victor G. Burmistrov

No, it shouldn't be overexposed, though it does depend on the light pollution zone! I shoot in blue and green zones and never set it below 800. It can range from 800 to 2000.

Mar 7th, 2025

Victor G. BurmistrovReply to Anastasiya Tretyakova

Understood

Mar 7th, 2025