October 21, 2017. Spruce Knob, 4800'. 16", 330x. SQM 21.3 mag/sq arcsec. Arps in Aries and vicinity.
October 22, 2017
October 21, 2017
October 17, 2017
September 30, 2017
September 25, 2017
August 27, 2017
August 26, 2017
August 24, 2017
Arp 312
SDSS
August 24, 2017. Spruce Knob, 4,800 ft. Clear, transparency above average. SQM 21.7. 16" F/4.5, 8 mm Ethos. Arp 312 (VV 197). Next to a bright star. MCG+8-31-5 by far the largest and brightest. -6 compact, round on its SE end. -4 widely separated to SW. 14th mag star to E has a fuzzy appendage on W side - 2MASX galaxy.
Arp 310 and 311
Arp 310-311. SDSS.
August 24, 2017. Spruce Knob, 4,800 ft. Clear, transparency above average. SQM 21.7. 16" F/4.5, 8 mm Ethos. Arp 310 and 311. IC 1259 brighest, minor component on W side, bright star ENE, faint star embedded E of center. IC 1258 second brightest. Star off N edge. IC 1260 smallest.
Arp 293
DSS
August 24, 2017. Spruce Knob, 4,800 ft. Clear, transparency above average. SQM 21.7. 16" F/4.5, 8 mm Ethos. Arp 293. NGC 6285 is a stubby CCW "S" with an EW bar. -86 is an edge-on or bar (NE-SW) with a detached star cloud or enhanced edge of asymmetric halo running S from middle of the line between nucleus and star E.
Arp 208
SDSS
August 24, 2017. Spruce Knob, 4,800 ft. Clear, transparency above average. SQM 21.7. 16" F/4.5, 8 mm Ethos. Arp 208. Very unequal double NW-SE (MCG+8-31-10 and -11). 3 stars W, 2 S. Close double star immediately W, pointing at equally faint star between it and W-most of the 2. S component of star pair brighter. W of it, repeated glimpses of MCG -9, pointing just S of the S-most of the 3. Somewhat uncertain.
Arp 188
SDSS
August 24, 2017. Spruce Knob, 4,800 ft. Clear, transparency above average. SQM 21.7. 16" F/4.5, 8 mm Ethos. Arp 188, Tadpole. Greatly elongated EW. Sharp bar in elongated halo E. Tail 2x length to W, slightly convex S.
August 1, 2017
Arp 249
SDSS
Arp 249, VV 186, UGC 12891. August 1, 2017. Spruce Knob, 4,800 ft. Clear, calm, dry. 60 F. Transparency average, seeing good. SQM 21.9. 16", 330x. Two round cores touching. Extension to the E. Unequal double to the SE cleanly resolved.
Arp 262
Arp 262. SDSS.
Arp 262, VV 255, PGC 72977. August 1, 2017. Spruce Knob, 4,800 ft. Clear, calm, dry. 60 F. Transparency average, seeing good. SQM 21.9. 16", 330x. Visually binucleate. S "nucleus" sharper. "Nuclei" connected by a shallow arc convex to the W. Two stars On N end of halo.
Arp 282
Arp 282. SDSS.
Arp 282, IC 1559. 199 Mly. August 1, 2017. Spruce Knob, 4,800 ft. Clear, calm, dry. 60 F. Transparency average, seeing good. SQM 21.9. 16", 330x. Miniature Whale and Pup. Bright star in field. Widely separated star cloud on axis to the E forms a broad isosceles triangle with faint star to the NE of core.
Arp 130
Arp 130. SDSS.
Arp 130, VV 263, IC 5378. August 1, 2017. Spruce Knob, 4,800 ft. Clear, calm, dry. 60 F. Transparency average, seeing good. SQM 21.9. 16", 330x. Main core round next to two stars. Companion glimpsed repeatedly but remained difficult. Orientation glimpsed once. Companion slightly inward of the line defined by the stars, widely separated from core on edge of common halo.
Arp 46
Arp 46 field. SDSS.
Arp 46, VV 314. August 1, 2017. Spruce Knob, 4,800 ft. Clear, calm, dry. 60 F. Transparency average, seeing good. SQM 21.9. 16", 330x. In nearby UGC 12667 two arms point at two stars, one opposite. In UGC 12665 (Arp) 3 apparent cores: core, companion, and, in actuality, condensation in arm opposite. Star N of companion intermittent.
June 28, 2017
Arp 125
Arp 125. SDSS.
Arp 125, UGC 10491. VV 501, 356 Mly. June 28, 2017. Cherry Springs, SQM 21.78. 16", 330x. Suggestion of star on S edge of companion. Main component fan-shaped, opens NW. SE end brighter.
Arp 124
Arp 124. SDSS.
Arp 124, NGC 6361. 167 Mly. June 28, 2017. Cherry Springs, SQM 21.78. 16", 330x. Companion slightly elongated. Edge-on very slightly S-shaped, curving away from the companion. N edge brightest E of core and contains a knot. Star NW of companion seen.
Arp 102
Arp 102. DSS.
Arp 102, UGC 10814. VV 10, 315 Mly. June 28, 2017. Cherry Springs, SQM 21.78. 16", 330x. Component c is a streak W of a star. Repeated suggestion of bridge. Main component with arm along E side, which becomes especially pronounced to S (component b). MCG [+8-31] -41 compact.
Arp 73
Arp 73. SDSS.
Arp 73, IC 1222. 404 Mly. June 28, 2017. Cherry Springs, SQM 21.78. 16", 330x. S-shaped. Bar ends in condensations. Both the SDSS companion and double star are glimpsed. Star unresolved streak.
Arp 66
Arp 66. SDSS.
Arp 66, UGC 10396. VV 472, 273 Mly. June 28, 2017. Cherry Springs, SQM 21.78. 16", 330x. "Companion" elongated, arm points at it. Short extension opposite.
June 22, 2017
Arp 32
Arp 32. SDSS III.
Arp 32, "integral sign spiral". VV 89, UGC 10770. Dra. June 22, 2017. Cherry Springs, SQM 21.7. 16" F/4.5. Components resolved with 5.5 mm. Star in between. N component NS, SW end of S component bends sharply S, tapered.
Arp 30
Arp 30. SDSS III.
Arp 30, "spiral with one heavy arm". VV 232. NGC 6365. Dra. A 1996 paper argues that this is a first-pass interacting system.
June 22, 2017. Cherry Springs, SQM 21.7. 16" F/4.5, 5.5 mm. Double star resolved. Edge-on companion points outwards relative to double star and main galaxy center. Other end embedded in halo more than tangentially - hint of enhancement on edge of halo.
Arp 2
Arp 2. SDSS III.
Arp 2, UGC 10310. Her. "Low surface-brightness spiral." Magellanic at 33 Mly. June 22, 2017. Cherry Springs, SQM 21.7. 16" F/4.5, 8 mm. Core double [core and knot N of it on SDSS]. Compact enhancement on W edge.
June 18, 2017
Arp 103
Arp 103. SDSS.
Arp 103, MCG+8-31-3. VV 710, 411 Mly. Zwicky's Triplet. June 28, 2017. Cherry Springs, SQM 21.78. 16", 330x. UGC 10586, NGC 6241 seen (not parts of the Arp triplet). PGC 59062 fainter than MCG+8-31-3. MCG+8-31-3A seen. (Zwicky's triplet is MCG...-3, -3A, and the PGC - see sketch in the original Zwicky and Humason paper.)
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