Observation by Adam Rawlinson: NGC7331 with Stephans Quintet

Uploaded by

Adam Rawlinson

Observer

Adam Rawlinson

Observed

2023 Sep 02 - 21:00

Uploaded

2023 Sep 04 - 08:48

Objects

NGC7331
NGC7319

Planetarium overlay









Constellation

Pegasus

Field centre

RA: 22h36m
Dec: +34°06'
Position angle: -54°45'

Field size

1°11' × 0°54'

Equipment
  • Primaluce Airy 90 APO
  • SXPro 694 Trius C
  • skywatcher EQ6 pier mounted
Exposure

3000Secs (250sec subs)

Location

Sandhurst UK

Target name

NGC7331 and Stephans Quintet

Title

NGC7331 with Stephans Quintet

About this image

Will try better when the moon has cleared off, this was very hard with background scatter, gradients and inability to make flats work !

But beyond the artefacts, satellite trails and blobs in this image are numerous galaxies including the iconic Stephans Quintet.

NGC7331 (C30) is a cracking SAb spiral ~ 12Mpc distant. Reportedly similar to our own Milkyway Galaxy. Surrounded by its entourage of local group galaxies (on the left of the fram here)

On the right is Stephan's Quintet. A small independant "compact" galaxy grouping. In fact though, only four of these are graviationally tied, the 5th, NGC 7320 is in the foreground only with a far lower redshift. ~ 40mlyrs hence potentially part of the NGC7331 group. Whereas the other four are much further away (some 8 times as distant)

The JWST took some amazing images of Stephans QUintet last year with the Miri instrument  Stephan's Quintet (MIRI Image) (webbtelescope.org)

 

 

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