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OBJECT NGC 7331 (and Stephan's Quintet, lower left, including tidal tail from NGC 7319)       (image above is reduced-size crop | other sizes:  medium , original)

Distance:  40 million light years to NGC 7331; Up to 300 million light years for Stephan's Quintet galaxies

Telescope Takahashi TOA-130F @ f/7.7
Mount Takahashi EM200 Temma II
Camera QSI 540wsg @ -15C
Filters Astrodon Tru-Balance I-Series LRGB Gen 2
Guider SX Lodestar
Settings 9x10min L; 2x5min ea RGB (all bin1x1); AstroArt5, CS4 (slightly cropped, 10xdarks/flats/fdarks/bias)
Date/Location

Notes
26 November 2014 - Las Cruces, NM

Published as Astronomy Magazine Picture of the Day, 16 Feb 17 (screenshot).
Published
in BBC Sky at Night Magazine, Jun 2015 DVD  issue (screenshot).

This is my third attempt at NGC 7331 and a significant improvement from my earlier attempts in 2011. In this attempt, I inadvertently picked up Stephan's Quintet (a great surprise!) It was late and this was one of three objects that night - I also did not consider the FOV and the Quintet nearby. Thankfully, I got it with just a slight trim on two of the five. I was very happy to see that I also picked up the tidal tail from NGC 7319 (top right part of the five galaxies in this image).

Copyright  Jeffrey O. Johnson

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