Observation by Martina McGovern: The Bubble Nebula NGC 7635

Uploaded by

Martina McGovern

Observer

Martina McGovern

Observed

2022 May 24 - 23:30

Uploaded

2022 Aug 20 - 12:54

Objects

The Bubble Nebula (NGC7635)

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Constellation

Cassiopeia

Field centre

RA: 23^h20^m
Dec: +61°11'
Position angle: +80°48'

Field size

0°28' × 0°18'

Equipment

Celestron Edge HD 8” on HEQ5 PRO, ZWO ASI294MC Pro, ASIAir Pro, EAF & 60mm guide scope + ASI120MM mini & Optlong L-Pro Broadband & L-eXtreme filters. Plus, ZWO ASIAir Pro running the show

Exposure

Subs were 120secs for L-Pro & 300sec L-eXt. Integration 14hrs

Location

Near Cambridge city UK, Bortle approx 4

Target name

The Bubble Nebula NGC 7635

Title

The Bubble Nebula NGC 7635

About this image

The Bubble Nebula NGC 7635, is an emission nebula located approx 7,000 light-years away, in the constellation Cassiopeia. It is a Ha (Hydrogen Alpha, red colour) rich Nebula. It is 7 light-years across.

Total integration time was 14hrs i.e. 2.5hrs of L-eXtreme (one night in Sept 2020) and 11.5hrs L-Pro (recent data – over 8 nights during May to June 2022).

I have been processing this DSO for about a month – learning so much as I go, as always with this amazing hobby.

This project is the first time I have successfully combined L-eXtreme data with L-Pro data. Also, apart from Stacking the data in DSS, all the processing was done in PixInsight. That is, I used to do DSS, PixInsight then finish off in Photoshop & Topaz Denoise but I have ‘found’ NoiseXTerminator. Also, I used brilliant new ‘Star reduction’ process tools free from Bill Blanshan, watch @Lukomatic YouTube video & I learnt how to combine Ha with RGB from VisibleDark YouTube video.

I am very happy with my progress to-date but realise there is still so much to learn – looking forward to it :)

Clear skies all.

Martina

Files associated with this observation

NGC7635 20sep20-24May to 30Jun22 HaRGB iss3 BAA.jpg (1.2 MB)

Like this image

David Basey, Jeremy Shears, Alan Thomas, Paul Downing, Gerard Cauchi, Simon Paul Davis, Peter Mulligan, Callum Potter, Tim Haymes, Paul Whitmarsh, Dominic Ford, Grant Privett, Peter Carson, Luigi Morrone, Manolo_Rodriguez, Kevin Gurney, Philip Jennings, Mark Phillips

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