Observation by David Arditti: NGC 2903, 2018 January 19

Uploaded by

David Arditti

Observer

David Arditti

Observed

2018 Jan 19 - 03:11

Uploaded

2018 Jan 21 - 15:58

Objects

NGC2903

Equipment

356mm SCT
Astronomik CLS filter
Artemis 285 mono camera

Exposure

12 x 5 minutes

Location

Edgware, Middlesex, UK

Target name

NGC 2903

Title

NGC 2903, 2018 January 19

About this image

It seemed a very transparent night, and this was confirmed when I took test exposures of this object with the same equipment as I had on 2017 November 26: the background was far darker. Speaking to other members at the meeting on the 20th, they agreed the 18/19 had been remarkably transparent. I had a processing problem as the most recent flat frames I had were a couple of months old, and the dust bunnies had moved on the camera, so calibration was not perfect and I could not extract as much detail as I should have been able to. The uncalibrated stack shows much longer spiral arms. The LED lights are gradually coming to the streets round me now, but the effect these will have on deep-sky imaging still is not clear. Processing was with Deep Sky Stacker, Adobe Photoshop and GradientXTerminator.

Files associated with this observation

NGC2903-18-01-19C14FRCLScapt.jpg (164.4 kB)

Like this image

Jeremy Shears, Callum Potter, Nick James, David Swan, Graham Winstanley, David Hancox, Peter Carson, Alla Bonn

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