Arp 12

ARP 12 2015 Feb 21

Object:            ARP 12   (NGC 2608) Date:               2015 February 21
Peculiarity:    Spiral with split arms.
Constellation:           Cancer Time & altitude: 22.20 UT     67º
Catalogue data: Seeing (5 high):                               4/5
            R.A:                8h 35m Transparency (5 high):                   4/5
            Dec:                +28º 28 Telescope:     0.5m f4.1 Dob.
            Magnitude:    12.2 Eyepiece:      8mm Ethos     x260
            Galaxy size (mins): 2.3 x 1.4 Filters:            None.


At first I confused this galaxy with what turned out to be NGC 2619. Arp 12 is difficult due to its low surface brightness. First impression was of an oval haze oriented E-W. Further scrutiny suggested an “integral sign” galaxy but with the W arm missing. There is an inconspicuous non‑stellar nucleus.