Arp 143

ARP 143 2015 Dec 9

Object:            ARP 143

(NGC 2444 & 2445)

Date:               2015 December 9


Peculiarity:    Material emanating from elliptical galaxies.
Constellation:           Lynx Time & altitude:  00.10 UT  62º
Catalogue data: Seeing (5 high):                               2/5
            R.A:                7h 47m Transparency (5 high):                   3/5
            Dec:                +39º 02 Telescope:     0.5m f4.1 Dob.
            Magnitudes:  14.2 & 13.9 Eyepiece:      8mm Ethos      x260
  Galaxy sizes (mins):  1.2×0.8 & 1.4×1.1 Filters:            Lumicon Deep Sky


First observations since November 13. The Met Office say November has been the dullest (i.e. cloudiest) since records began in 1929.

This object appears as a faint envelope aligned N-S with a galaxy core at each end. The N core (NGC 2444) seems the brighter despite having the fainter catalogue magnitude, no doubt because it is more compact. The N core is slightly oval. The S core has a knot either side of it to N and S. These knots were only seen intermittently. There are five knots in all but the other three were invisible.