British Astronomical Association
Supporting amateur astronomers since 1890

BAA Images Alan Snook

Observation by Alan Snook: Arp 200

Uploaded by

Alan Snook


Alan Snook


2016 Oct 31 - 03:15


2016 Nov 04 - 16:56



  • 0.5m f4.1 Dobsonian
  • 8mm Ethos eyepiece x260


Target name

Arp 200


Arp 200

About this image

Weather continues calm, misty, murky and un-seasonally mild. The sky has 50% cloud cover with cirrocumulus covering the northern half from horizon to zenith.  Arp 200 was not conspicuous despite being listed at 12th magnitude. It lies at one end of a curve of faint stars running E then turning N. Initially it appeared as a coarsely mottled circular patch with an offset core and a knot of brightness near the adjacent star. Later it appeared as a blocky oval, with suggestions of structure, lighter and darker striations, running NW-SE, like a dab by an artist’s brush

Files associated with this observation
Like this image
Copyright of all images and other observations submitted to the BAA remains with the owner of the work. Reproduction of work by third parties is expressly forbidden without the consent of the copyright holder. By submitting images to this online gallery, you grant the BAA permission to reproduce them in any of our publications.