Observation by David Swan: Bubble Nebula

Uploaded by

David Swan

Observer

David Swan

Observed

2017 Aug 10 - 21:51

Uploaded

2017 Aug 10 - 22:31

Objects

The Bubble Nebula (NGC7635)

Equipment

Scope: 200mm SCT at f/6.3
Camera: ASI178MM. Baader UV/IR cut
Software: Firecapture and DeepSkyStacker

Exposure

100 x 5s subs

Location

Tynemouth, UK

Target name

Bubble Nebula, NGC 7635

Title

Bubble Nebula

About this image

Midpoint of capture 21:51 UT, 22:51 BST

This evening I had the 16bit box ticked in Firecapture. Wow, what a difference! The computer often crashes when stacking though.

* Correction: it is a 14bit output from the camera

Files associated with this observation

bubblecroppedweb.png (1.3 MB)

Like this image

Jeremy Shears, Dawson, Andy Wilson, Dr Ollie Garrett

Comments

Dawson, 2017 Aug 13 - 08:07 UTC

Lovely.

Impressive amount of data given this is just 8 minutes with a CMOS sensor. Are you going to add more data to it? Why did you only go for 5 second exposures and not longer?

David Swan, 2017 Aug 13 - 09:27 UTC

Hello - thanks. Yes, I seem to remember the wind was gusting that evening in my yard, so I decided to do much shorter exposures than I am able to do. This meant of course that I could just discard subs that were affected by movement of the rig. I do have RGB filters, so I must add colour to luminosity when I have the time! David

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