Arp 114:

North is left. (mirrored). 26x18 arcmin (0.3 arcsec/pixel) Total exposure time:393 * 30 seconds = 3.2 hours. (across 2 nights) Exposure used in stack: 241 * 30 seconds = 2 hours. Telescope: C9.25 (230mm, f/10, fl=2300mm) Camera: IMX533 (16mm diagonal, square, color) Processing: (no software sharpening used) Callibration (dark + flats) Stacking (average w/ rejection) White balance and background subtraction Asinh stretch Light denoising Tone curve Crop This one has two entries in the Altas of Peculiar Galaxies: Once as Arp 25 under "one heavy arm" and again as Arp 114 under "ellipticals close to and perturbing spirals". The spiral structure of NGC 2276 is somewhat unusual looking, although it's not an obvious case of tidal interaction. Hubble data suggests it's actually moving quite fast (950 km/sec) through space, which causes the lob-sided arms as it interacts with sparse gas clouds. If this is correct, the galaxy is not actually head-on as seen from earth: It tilts toward us on the…