Observation by Mike Scarisbrick: NGC 7331, Deer Lick Group, Stephan's Qui...

Uploaded by

Mike Scarisbrick

Observer

Mike Scarisbrick

Observed

2018 Nov 29 - 23:00

Uploaded

2018 Dec 27 - 14:11

Objects

NGC7317
Stephan's Quintet (Arp 319)
NGC7320

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Constellation

Pegasus

Field centre

RA: 22^h36^m
Dec: +34°15'
Position angle: -18°37'

Field size

0°56' × 0°40'

Equipment

800mm f.l. f/4 Newtonian
Canon EOS 500D
HEQ 5 Pro mount

Exposure

67 x 30 seconds, ISO 3200

Location

Cambridgeshire

Target name

Deer Lick Group, Stephan's Quintet

Title

NGC 7331, Deer Lick Group, Stephan's Quintet

About this image

In response to James Dawson's Observer's Challenge from October, at the end of November I attempted an image with NGC 7331 and the Deer Lick group in the same field as Stephan's Quintet. At the time, the coloured background noise in the stacked image was so excessive that I gave up with colour and just placed a monochrome version on my Astronomy blog pages. Boxing day (most of it) provided the opportunity to attempt to get some star colour back into this image. This was mainly done for the benefit of the obvious red star, horizontally central and about one fifth of the way up from the bottom of the image. Stellarium tells me this has a Colour Index of 1.67 - not as red as Antares.

The main tidal tail in Stephan's Quintet is just about visible above noise level, and there are a number of other NGC (and PGC) objects dotted around the image not associated with the two groups mentioned.

Files associated with this observation

NGC7331_et_al_2018_11_29_67x30s_EOS_ISO3200_800mmfl_f4_BAA.jpg (249.2 kB)

Like this image

David Swan, Jeremy Shears, Geof Lewis, Jimmy Fraser, Graham Winstanley, Andy Wilson

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