NGC 7757 (Arp 68) Spiral Galaxy, type Sc, in Pisces. Taken Oct 10, 11 and 12, 2010. This galaxy is
also cataloged in the Arp Atlas as Arp 68 in the class of “Spiral Galaxies with a Small High-Surface-
Brightness Companion”. Imaged with CCD Lab’s Q285M and a C8N at f5 on a Losmandy G11/Gemini
mount. This is cropped and re-sampled from a larger image of Arp68 see:
The L subframes were 5 minutes binned 1x1, while the RGB subframes were 1.5 minutes binned 2x2
resulting in the following total exposures L:R:G:B (min) = 270:30:30:30. Captured with Nebulosity,
calibrated and sigma combined in Iris with other processing using PixInsight LE and Photoshop CS.
North is up.