| 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). |
