Arp 43

Arp 43 2016 April 6

Object:         ARP 43    (IC 607) Date:               2016 April 6
Peculiarity:    Spiral: low surface-brightness component on arm.
Constellation:           Leo Time & altitude:  22.50 UT         51º
Catalogue data: Seeing (5 high):                               4/5
            R.A:                10h 24m Transparency (5 high):                   4/5
            Dec:                +16º 44 Telescope:     0.5m f4.1 Dob.
            Magnitude:    13.2 Eyepiece:      8mm Ethos      x260
            Galaxy size (mins):  1.8 x 1.5 Filters:            None

Notes:

Galaxy not seen! My first “no show” in the Arp project. I do not understand. I am confident I have the right field, the air is very good, but there is nothing visible at the location.  Megastar puts the magnitude at 14.0, not 13.2. The faintest star I have plotted is 14.1 according to Megastar, and I have missed one of 15.0, so it should be ‘in range’.  Arp 43’s position is marked by the circle.