Sunday, September 22, 2019

returned to Arp 330 (Halifax)

The Burke-Gaffney Observatory imaged Arp 330. A cluster of galaxies in Draco. First tried to view this target from the CAO on 12 Jun '18. Wow.

galaxy group Arp 330 in luminance

Luminance only, 60 seconds subexposures, 10 stacked shots. FITS Liberator, Paint.NET. North is up; east is left.

The centre of the group is near star HD 234352 aka SAO 30113.

Wow. There are a lot of galaxies here... Look at that crooked line running north-south to the right (west) of the bright star. Amazing!

Apparently some call this the "Golden Chain."

Rick J identified over a dozen (maybe two) in his image that I found on Cloudy Nights. In SkyTools 3 Pro, I verified over a dozen. There are more in the image that my software does not identify.

I found:

LEDA 2444311
MCG 9-27-99 aka UGC 10583
LEDA 2442680
MCG 9-27-96 (part of Arp 330 proper)
MCG 9-27-95 (part of 330)
MCG 9-27-100 aka PGC 59089
MCG 9-27-92 (part of Arp 330)
LEDA 2440308
LEDA 2440298
MCG 9-27-93 aka PGC 59056
MCG 9-27-91 (part of 330)
LEDA 2439198
LEDA 2437977
MCG 9-27-94 (part of 330)

But all are very faint. And small. Most, star-like. No wonder I had trouble visually.

There are outliers too...

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