Observation by Dean Ashton OBE: Triangulum

Uploaded by

Dean Ashton OBE

Observer

Dean Ashton OBE

Observed

2025 Sep 25 - 22:00

Uploaded

2025 Sep 27 - 15:09

Objects

The Triangulum Galaxy (M33)
NGC604

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Constellation

Triangulum

Field centre

RA: 01^h33^m
Dec: +30°40'
Position angle: +0°13'

Field size

0°48' × 0°32'

Equipment

Celestron 9.25 EdgeHD at /f7
QHY268C Camera
Optolong L-Pro Filter
Celestron CGEM

Exposure

68x600s exposure at 1,645mmfl

Location

St Austell, Cornwall

Target name

Triangulum Galaxy

Title

Triangulum

About this image

As the summer night sky gives way to Autumn, our neighbourhood galaxies, M31 and M33, come into view.

M33 imaged on 22, 23 and 25 September 2025. 11hr20min (68x600s) exposures used from 14hr of subs recorded.

This is a work in progress with Ha data to be recorded when (if) the sky clears again. However, even in RGB the Ha areas of star formation in M33 are clear with the giant NGC604 emission nebula revealing structure even with a 235mm aperture scope.

All pre-processing and processing carried out with PixInsight.

Files associated with this observation

M33_68x600s_LPro_Sep25_RGB.jpg (9.4 MB)

Like this image

Oliver Hext, Simon Paul Davis, Graham Winstanley, Peter Mulligan, Callum Wingrove, Andy Wilson, Dominic Ford, Callum Potter

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