Observation by Mike Greenhill-Hooper: NGC4725

Uploaded by

Mike Greenhill-Hooper

Observer

Mike Greenhill-Hooper

Observed

2026 Apr 16 - 20:30

Uploaded

2026 Apr 25 - 14:30

Objects

NGC4725
NGC4712

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Constellation

Coma Berenices

Field centre

RA: 12^h50^m
Dec: +25°29'
Position angle: -46°38'

Field size

0°19' × 0°13'

Equipment

Telescope: 20" f/4 Obsession Dobsonian; Paracorr coma corrector
ASI294MMPro camera with LRGB filters

Exposure

4x150 frame live stacks for each filter; 2s exposure, gain 450, temp 1C, dark and flats corrected

Location

Miradoux, S.W. France

Target name

NGC4725

Title

NGC4725

About this image

Images captured with SharpCap Pro (dark calibrated); processed with Affinity Photo, Siril, GraXpert and Cosmic Clarity. NGC4725 is a barred spiral galaxy with a single arm, magnitude 9.2, at a distance of 42 million light years. The fainter galaxy, in the top left of the image, NGC4712, is magnitude 12.8 and is much further away (around 200 million light years). I was pleased with how much detail I could capture in this fainter more distant galaxy.

Files associated with this observation

NGC4725 M Greenhill-Hooper 170426.jpg (1.9 MB)

Like this image

Gary Poyner, Alan Dowdell

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