Observation by Dean Ashton OBE: Triangulum with a different complexion

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Dean Ashton OBE

Observer

Dean Ashton OBE

Observed

2025 Sep 28 - 22:00

Uploaded

2025 Sep 29 - 17:02

Objects

The Triangulum Galaxy (M33)
NGC604

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Constellation

Triangulum

Field centre

RA: 01^h33^m
Dec: +30°39'
Position angle: +0°13'

Field size

0°48' × 0°32'

Equipment

Celestron 9.25 EdgeHD at 1,645mmfl /f7
QHY268C Camera
Optolong L-Pro and Optolong L-eXtreme filters

Exposure

94x600s

Location

St Austell, Cornwall

Target name

M33

Title

Triangulum with a different complexion

About this image

This image was composed from 68x600s RGB exposures combined with 26x600s Ha and Oiii exposures.

The Ha rich regions in M33 give it a different complexion and highlight the high levels of star formation taking place throughout the galaxy.

Files associated with this observation

M33_94x600s_RGBHO_Sep25.jpg (9.3 MB)

Like this image

Dominic Ford, Graham Winstanley, Andy Wilson, Callum Potter, Ian Jarrett

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