NGC 7331


4th September 2004

Galaxy
Magnitude: 10.3; Surface brightness: 11.9 mag/sq arcmin; Size: 10.2'x4.2'; Position angle: 171°
Right ascension: 22h 37m 19s Declination: +34° 26' 40"
Constellation: Pegasus

200mm F5 newtonian @ F3.3, SC1.5 toucam
80mm F5 refractor @ F10 guidescope with SC1 toucam and GuideDog

Once again I point my telescope at 7331. With the focal reducer I have now got many galaxies 7331, 7335, 7336, 7337, 7340 Not bad for one frame. Alas, the star shapes from the reducer problem do not help. :( :( SC1.5 camera, F3.3, 100x40s exp, captured in k3, debayered in aviraw, stacking in k3 with flat, other work in photoshop. I then layered in the core of 7331 from a previous F5 image. I was suprise by how big 7331 is - larger than I had ever seen at F5!

Location: Curdridge, Southampton, UK. 51N 15W.
Details of equipment and method.

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