Observation by David Swan: SN 2017gjn

Uploaded by

David Swan

Observer

David Swan

Observed

2017 Sep 05 - 21:38

Uploaded

2017 Sep 05 - 22:46

Objects

NGC1067

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Constellation

Triangulum

Field centre

RA: 02^h43^m
Dec: +32°28'
Position angle: +136°31'

Field size

0°13' × 0°08'

Equipment

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

Exposure

53 x 5s subs

Location

Tynemouth, UK

Target name

SN 2017gjn

Title

SN 2017gjn

About this image

Midpoint of capture 21:38 UT; 22:38 BST. I cropped and inverted the image for clarity. I'll post the non-inverted image too.

I read that Robin Leadbeater had confirmed (by spectroscopy) this object as a type IA supernova, and wanted to see whether I could image it. The moon was very full (!) and very bright (!) this evening, but I just about managed the task.

I carried out non-linear stretches on the stack to generate this posted image, so it is not suitable for photometry. I may try aperture photometry on the unstretched FITS stack though (this would just be a clear measurement, not with a photometric V filter). I am also concerned that the annulus that measures the sky background will capture the adjacent star.

Files associated with this observation

sn2017gjncropinvertweb.png (552.8 kB)

Like this image

Jeremy Shears, Graham Winstanley, Dawson, Robin Leadbeater, Robert James Stuart

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