Arp 64

ARP 64 2016 Mar 17

Object:            ARP 64  (UGC 9503, VV 471) Date:               2016 March 17
Peculiarity:    Spiral with small HSB companion on arm.
Constellation:           Boötes Time & altitude:  03.40 UT              57º
Catalogue data: Seeing (5 high):                               3/5
            R.A:                14h 45m Transparency (5 high):                   3/5
            Dec:                +19º 28 Telescope:     0.5m f4.1 Dob.
            Magnitude:    15.1 Eyepiece:      8mm Ethos      x260
            Galaxy size (mins):  1.5 x 0.4 Filters:            None


This galaxy is only 5 mins away from another galaxy, MCG+3-38-6, magnitude 15.5 and 0.4’ x 0.4’.  I could see both galaxies maybe 25% of the time with DV and most of the time with AV.  MCG+3-38-6 is a round fuzz and was the easier of the two to see despite the catalogue magnitude being 0.4m fainter. It is not part of the Arp object. Arp 64’s shape was difficult to decide upon. I settled on it being a 2:1 oval lying NW-SE.  Checking images later shows it is elongated, but E-W. There are two HSB companions, one 0.8 min to the N and one 0.9 min W.  Research suggests both are no better than 17th mag. so beyond the range of my kit.