NGC 660 is a very strange and wonderful galaxy in Pisces.
It is classified as a peculiar, polar-ring galaxy.
Hover over the image for an annotated view.
Date: 1 October 2025
FOV: approximately 15' × 10' NGC 660 is about 12'
Rotation: −90.000°
Telescope: Celestron C14 SCT (3910mm, f/11)
Starizona SCT Coma Corrector/Reducer (2668.5mm, f/7.5)
Guiding: ZWO183 MM
Computer: ASIair plus 256GB
Mount: iOptron CEM120
Camera: ZWO ASI2600MC Pro Cooled (0°C) Color CMOS with gain 100
Pixel size: 3.76 μm
Resolution: 0.292 arcsec/pixel
Filter: Optolong UV/IR
Frames: seventeen 300 second subs Optolong UV/IR
Stacking: seventeen 300 second frames using PixInsight
Total time: 1 hour 25 minutes
Calibration frames: 20 dark, 20 flat, 20 dark flat
Processing: Pixinsight
SPCC, DBE, SPCC, BlurXT, NoiseXT → Linear
HTS, GHS, MStr, PixelMath MStr + GHS + HST → Stars,
Linear, StarXT, HTS, GHS, MStr,
PixelMath MStr + GHS + HST → Starless
PixelMath ~(~Starless_Blend*~Stars) → Final Image
Location: Darling Hill Observatory near Vesper, NY
