Arp 84

Arp 84 2018 May 5

Object:   Arp 84 (NGC 5394 and 5395) Date:               2018 May 5
Peculiarity:  Spiral, large high surface-brightness companion on arm.
Constellation:           Canes Venatici Time & altitude:        23.20 UT      76º
Catalogue data: Seeing (5 high):                               4/5
            R.A:                13h 59m Transparency (5 high):                   2/5
            Dec:                37º 26 Telescope:     0.5m f4.1  Dob.
            Magnitudes   13.7 & 12.1 Eyepiece       8mm Ethos                x260
            Galaxy size (mins) 2.9×1.5 (each) Filters:            None


There is a ground mist aggravating light pollution. This galaxy pair is nicknamed The Heron.  Both are bright and easy to see. NGC 5395 is the larger and brighter, elongated NS. The ends are marked by 14th mag. stars and there is a third faint star just off the W edge. The core is also elongated and the whole galaxy is mottled, suggesting unresolved structure. NGC 5394 is round with a near-stellar core. There is a faint mist connecting the pair.