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NGC 4395

Category:Deep Sky
Published:
400
NGC 4395NGC 4399NGC 4400NGC 4401NGC 4395
Resolution:
3338x2033 px
File size:
717 KB

Photo description / processing

I really wanted to capture this object. In Stellarium it appears quite bright, but in reality it's very faint—just not suitable for my skies. NGC 4395 is a low-surface-brightness spiral galaxy with a halo about 8′ in diameter. It contains several broad, brighter regions aligned from northwest to southeast, with the brightest one in the southeast. Three of these regions have their own NGC numbers: 4401, 4400, and 4399, from east to west. The nucleus of NGC 4395 is active, classifying it as a Seyfert galaxy. Notably, it hosts one of the smallest supermassive black holes with a precisely determined mass. The central black hole has a mass of "only" 300,000 solar masses, making it what is called an "intermediate-mass black hole."

Technical information

Telescope/Lens
Прямофокусник 300/996 "Изд.№3"
Camera
QHYCCD QHY5III585M
Mount
МТ-120
Guide Scope
Kenko ED 60/400
Guide Camera
T7M
Accessories
Sharpstar 0.95x MPCC Сдвоенное колесо фильтров От Ивана Ионова
Software
N.I.N.A., Pixinsight, Adobe Photoshop
Location
Екатеринбург, район озера Глухое., Россия

Light pollution

Orange, Bortle 6 zone

Date taken

Exposure

  • 20 × 180″ · ISO/Gain: 9 · Touptek G 36мм ·
  • 20 × 180″ · ISO/Gain: 9 · Touptek R 36мм ·
  • 20 × 180″ · ISO/Gain: 9 · Touptek B 36мм ·

Total exposure: 3 h 0 m

Comments

Ryjov Aleksey
This object is interesting and quite large, measuring 13.2' × 11.0'.
The surface brightness is low, but the result is there and well done!
If another 6 hours or so are added, I think it will be super.
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Oleg NovoselovReply to Ryjov Aleksey
Let's see about another 6 hours, it's very bright here, the Milky Way isn't visible.
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