I think the "tail" is an edge-on Magellanic in projection and only weakly interacting. It would be a bit large, but then maybe the spiral is small. A normal spiral with particularly dense dust...
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I think the "tail" is an edge-on Magellanic in projection and only weakly interacting. It would be a bit large, but then maybe the spiral is small. A normal spiral with particularly dense dust...
One of the "visual" Abells, this nebula is prominent in Panstarrs G. I have the following notes and sketch.
2019-09-03, Spruce Knob, 4800 ft a.s.l. Clear, relatively dry and calm. Transparency...
Scott, I have 4 Abell PNs left to be tried. As to the list - stay tuned.
With only a few Hicksons and Abell PNs remaining, I had bought more Faint Fuzzies guides - FGC and VV I. Under excellent conditions and going for most of the 11 hours of astronomical dark we had, I...
Alvin, your observations and your guides have been an inspiration and defined advanced visual astronomy. It was using your guide that I checked off Hickson 28 last month, with only 8 remaining. D...
Nice to see you here, Robert. No wind to speak of that night, how about that?
It so happened that I observed this nebula just last week. My observation is similar to yours.
Abell 41, Ser (PK 9+10.1). 2022-06-29, Spruce Knob (summit, 4800 ft). Clear, calm, dry. Transp. 8/10,...
This pair was a definite highlight of the Dunlop catalog for me with my travel Mak from Australia, but, objectively, I only saw as much of it as Al managed from our home latitude.
Very nice object. I have this from 2014, club site, my old 16", 140x.
Pretty bright, round. Even brightness. Well-defined edges. Star immediately to the SSW. A fainter star is slightly farther W.
Here are my 2012 notes, and a labeled DSS. 16", club site.
https://4.bp.blogspot.com/-wprX8oZXrJ4/UQ011aRy-kI/AAAAAAAAAWc/pkTLoLDlGDI/s400/NGC+7769,+70,+and+71+blue+DSS.jpg
NGC 7769...
Hi Wouter and Alvin,
I have pulled up a z-zg-g PANSTARRS image and the nebula is a distinct blue annulus:
4375
There are three subthreshold stars just E of the nebula. The brightest of them...
Very nice object. I have these notes from nine years ago, when I observed it with my old 16-inch without a filter at ~140x, to try to approximate Herschel's view. SQM 21.64. "Soft annulus like a...
I tried last night (transp. 9/10, seeing 2-4 arcsec, SQM 21.8, object approaching meridian, elevation 700 m, aperture 20", magnification 150 with a wide-field ocular): Large apparent nebulosity...
I thank all who have responded for the kind comments. It was interesting to learn about others' exploits with this list. Did I sketch all the Arps? No. Do I intend to? I can only say that it would...
This is a tricky Abell! Last night I examined this field at 75 and 150x with my OIII filter (20", SQM 21.85, transp. 9/10, seeing 2-4 arcsec, elev. 700 m, object past culmination). There was a...
This is a very impressive object. I have this observation from December 2012, with my old 16" from a Bortle 2-3 site.
At 45x it is a round diffuse patch, on the E side of which is a star. 225x...
Very nice object. I have this observation from about two years ago.
20" (F/5). SQM 21.0, good seeing. Arp 9, NGC 2523, Cam. NE of a star. 13 mm: Bar WNW-ESE, small bright core in the middle. Short...
I think it's a spiral seen slightly from its southern side, eastern arm curving away from us and western one, toward us. While the disc is not twisted, as such (out of the plane).
I haven't looked at it in a while, but it was one of my favorite objects when I observed with my old 4" F/5.5 Televue (and Lumicon 2" H-beta in Pentax XW 40 mm). Doc Werkman first showed it to me in...
This is a nice write-up, Alvin, and one of my favorite objects. This is what I have from three years ago, on a solid good SQM 21.3 night with our club's observatory 20-inch (F/5): "Arp 150, Hickson...
Thank you, gentlemen. Al, that's an interesting idea.
With the recent (probably last for the year) trip to my 4800 ft, Bortle 2.5 site, I have finished my survey of all objects from the Arp atlas of peculiar galaxies. I started to work on the list...
I remembered this thread - I did not realize it was getting on six years old! Nevertheless, here is my new sketch (20", 570x, SQM 21.77, seeing 2 arcsec, elev. 4800 ft). North is to the lower left....
Appreciate it - PM sent.
Way to go, Hakann! Please mention also how you like the rigidity of the structure - stability of the secondary especially - on this scope.