Object name: NGC0488Designation(s): NGC0488, NGC0486, NGC0490, NGC0492, This one reminds me of a hypnotist's spiral or maybe a time vortex. O'Meara calls it the Whirligig Galaxy
NGC 488 is a tightly wound spiral (SA(r)b) located in Pisces about 90 million light-years away by redshift measurement or 95 by Tully-Fisher analysis of its rotation rate. Being nearly face on that must be a tough measurement. It seems to be made up of mostly arm segments that go only about halfway around then fuzz out. Still, I seem to see but one continuous spiral if I follow the fuzz between segments. This is easier to do if the image is enlarged some. Unfortunately, seeing wasn't all that good so I had to limit my enlargement to only 33% or 0.75" per pixel.
The field isn't covered by the Sloan Digital Sky Survey so few of the galaxies are cataloged. I've labeled all that are and include distance data for those few that had it. One galaxy cluster (GC) is annotated in the image. The line points to its center. NED shows it containing 17 galaxies but gives no size. It shows it as about 3 billion light years distant. Most members in my image appear to be east of the center.
The galaxy was discovered by William Herschel on December 13, 1784. My entry from the original H400 with my 10" f/5 on September 6, 1985 at 110x with some aurora lighting the sky reads: "Lage, oval patch of a galaxy. Seems to blend into the nearby field stars making it difficult to see. Seems rather elongated (about 2.5'x1'). This may be influenced by the effects of the field stars mentioned above."
There is one "bright" asteroid of 19th magnitude and several of 20th. Due to the bad seeing and low transparency as well as their rapid motion they are fainter than normal. I didn't label the 20th magnitude ones. The gap in the trail is due a meridian flip 20 minutes into the image. On cold winter nights like this one (outside temperature was below -30C) I slew at only 30% normal speed. That means a couple minute delay in the flip. The gap is longer than this as I apparently allowed 7 minutes for the flip instead of the 3 I usually program in. Even 3 would have shown a gap, however.
Due to my mind seeing this as a time vortex I've included an "enhanced" version.
14" LX200R @ f/10, L=4x10' RGB=2x10'x3, STL-11000XM, Paramount ME Related Designation(s):2MASS J01214301+0520468, 2MASS J01220286+0522019, 2MASS J01221352+0525013, 2MASX J01214684+0515241, 2MASX J01220285+0522021, 2MASX J01221356+0525012, AGC 110254, CGCG 0119.2+0500, CGCG 0119.5+0506, CGCG 0119.6+0509, CGCG 411-033, CGCG 411-035, CGCG 411-036, GALEXASC J012143.11+052047.6 , GALEXASC J012146.72+051524.5 , GALEXASC J012202.88+052202.2 , GALEXASC J012213.59+052500.9 , GALEXMSC J012143.09+052047.5 , GALEXMSC J012146.62+051525.4 , GALEXMSC J012202.85+052200.1 , GALEXMSC J012213.55+052500.4 , HIPASS J0121+05, IRAS 01191+0459, IRAS F01191+0459, KIG 0050:[VOV2007] 097, KIG 0050:[VOV2007] 107, KIG 0050:[VOV2007] 108, KIG 0050:[VOV2007] 124, LDCE 0085 NED004, LEDA 1281966, LGG 021:[G93] 003, LGG 021:[G93] 007, MCG +01-04-033, MCG +01-04-035, MCG +01-04-038, NGC 0486, NGC 0488, NGC 0488:[ZSF97] a, NGC 0490, NGC 0492, NGC0486, NGC0488, NGC0490, NGC0492, NPM1G +05.0055, NSA 129252, NSA 129263, NSA 154119, NVSS J012213+052456, PGC 004946, PGC 004973, PGC 004976, SDSS J012146.79+051524.7, UGC 00907, UZC J012146.8+051525, UZC J012213.6+052501, WBL 037-001, WBL 037-002, WBL 037-003, [HDL96] 411-081, [M98j] 018 NED05, | |