Abell 81 = IC 1454, Cep. 2020-08-19, Cherry Springs, SQM 21.61-21.69. 20-inch Newtonian (F/4), ocular 8 mm. Annular, star pair off E edge.
PANSTARRS g, 5 arcmin
August 19, 2020
July 17, 2020
Abell 43
Abell 43, PK 36+17.1, Oph. 2020-07-17, Cherry Springs, SQM 21.6. 20-inch Newtonian (F/4). Ocular 5.5 mm. Annular with some nebulosity inside. Central star, two stars embedded on S and NE side.
PANSTARRS g, 5 arcmin
Abell 46
Abell 46, PK 55+16.1, Lyr. 2020-07-17, Cherry Springs, SQM 21.6. 20-inch Newtonian (F/4). Ocular 5.5 mm, with and without OIII filter. Soft wide annulus around a star. Two similar stars to the E and NE.
PANSTARRS g, 5 arcmin
Abell 39
Abell 39, PK 47+42.1. 2020-07-17, Cherry Springs (elev. 700 m), SQM 21.6. 20-inch Newtonian (F/4). Ocular 13 mm. Fairly large, round, almost annular, nebulosity extends to the central star, edge well defined, second star embedded just inside the enhanced edge on the S side. Similarly faint star is immediately off the SE edge; a brighter star is close to the W edge. The edge is particularly enhanced on the SE side.
PANSTARRS g, field 8 arcmin
Abell 50
2020-07-17, Cherry Springs, SQM 21.6. 20-inch Newtonian (F/4). Abell planetary nebulae. Abell 50 (NGC 6742, Dra). 3.5 mm ocular: Round with an enhanced edge, except on the SSE side. Star embedded on W edge, another star is immediately off N side.
DSS
July 15, 2020
Abell 72
2020-07-15, Beaver Meadow Observatory, SQM 21.19. 20-inch Newtonian (F/5), 13-mm ocular, OIII filter. Abell planerary nebulae. Abell 72 (Del). Two opposing segments of a circumference are visible, NE one brighter. Faint central star. PK 59-18.1
DSS
Abell 78
2020-07-15, Beaver Meadow Observatory, SQM 21.19. 20-inch Newtonian (F/5), 13-mm ocular, OIII filter. Abell planerary nebulae. Abell 78, Cyg. An annulus with a well-defined outer edge, slightly washed out to the SE and slightly fainter on the opposite side. Bright central star. Two faint stars close to the NE and NW, two brighter stars farther to the SW and ESE. PK 81-14.1
DSS
Abell 71
2020-07-15, Beaver Meadow Observatory, SQM 21.19. 20-inch Newtonian (F/5), 13-mm ocular, OIII filter. Abell planerary nebulae. Abell 71, Cyg. An annulus, star embedded in the void off-center to the NW. A close star pair immediately off NE edge, a wider pair of brighter stars immediately off SW edge. E side of the annulus is much brighter. Inner edge soft, outer edge well-defined. The annulus is almost interrupted on the NW side next to the interior star. The faint double between the brighter stars to the N is cleanly resolved. PK 85+4.1.
DSS
July 11, 2020
Abell 64
2020-07-11, Spruce Knob (elev. 4800 ft), SQM 21.72-21.74. 20-inch Newtonian (F/4). Abell 64 (actually a galaxy, PGC 63630). Observed with 8 mm ocular. Slightly elongated ENE-WSW, no concentration, star on E end and another a short distance off E end.
DSS
Abell 69
2020-07-11, Spruce Knob (elev. 4800 ft), SQM 21.72-21.74. 20-inch Newtonian (F/4). Abell planetary nebulae in Aql-Cyg. Abell 69, Cyg. Observed with 5.5 mm ocular with and without OIII filter. The nebula is very small, round, immediately NW of a faint star (right of center in the sketch).
PANSTARRS z-zg-g
Abell 61
2020-07-11, Spruce Knob (elev. 4800 ft), SQM 21.72-21.74. 20-inch Newtonian (F/4). Abell planetary nebulae in Aql-Cyg. Abell 61, Cyg. Observed with 13 mm ocular and OIII filter. A half-circumference is visible, convex to the W. Two stars involved, faint star immediately W of the N end.
DSS
Abell 62
2020-07-11, Spruce Knob (elev. 4800 ft), SQM 21.72-21.74. 20-inch Newtonian (F/4). Abell planetary nebulae in Aql-Cyg. Abell 62: observed with 13 mm ocular and OIII filter. Two diametrically opposed circumferential segments visible, E one shorter. Multiple faint stars immediately adjacent to the segments
.
DSS
July 8, 2020
Abell 55
2020-07-08, Beaver Meadow Observatory (elev. 500 m). SQM 21.2. 20-inch Newtonian, F/5. Ocular 13 mm, filters CLS (Astronomik light pollution) and OIII (Orion US). Abell 55, reobservation from 6/28.
DSS
June 28, 2020
Abell 56
2020-06-28, Beaver Meadow Observatory (elev. 500 m). SQM 21.2. 20-inch Newtonian, F/5. Ocular 13 mm, filters CLS (Astronomik light pollution) and OIII (Orion US).
Abell 56, DSS
June 16, 2020
Abell 53
DSS
SN2020jfo
SDSS
June 13, 2020
Arp 76
SDSS
M58
2020-06-12, elev. 700 m, clear, mostly calm, humidity ~60%, transp. 7/10, seeing 4", sky 21.85 mag/arcsec2 overhead stable. 20" F/4 Newtonian, oculars 26, 13, 8 mm wide-field. Sketch on black paper, north up.
SDSS
May 25, 2020
VV 219
SDSS
March 16, 2020
NGC 2889
DSS
February 15, 2020
Arp 245
2020-02-14, 42 N, elev. 700 m. Sky brightness 21.5 mag/arcsec2, seeing 2 arcsec. Telescope: D = 508 mm, F/4 Newtonian. Oculars: 13 and 8 mm, wide-field. Arp 245, Hyd (galaxy pair NGC 2992-3). Sketch on black paper, finished at the telescope. Shown with the north up. Although I also examined the field at higher and lower magnifications, the peculiar arm in NGC 2993, the connecting material, and the neighboring PGC flat galaxy remained invisible.
Arp 245, DSS
Sh2-308
2020-02-14, 42 N, elev. 700 m. SQM 21.5, seeing 2 arcsec. Telescope: D = 508 mm, F/4 Newtonian. Ocular: 28 mm. OIII filter (Orion US - passes H-beta as well). Sh2-308, CMa, supernova remnant. Only the brightest, western segment was visible. Sketch on black paper, finished at the telescope. Shown with the north up.
Sh2-308, DSS
Arp 180
2020-02-14, 42 N, elev. 700 m. Sky brightness 21.4 mag/arcsec2, seeing 2-4 arcsec. Telescope: D = 508 mm, F/4 Newtonian. Ocular: 5.5 mm wide-field. Arp 180, Eri (MCG -01-13-34). Sketch on black paper, finished at the telescope. Shown with the north up. Visible galaxy size ~1 arcmin. Fainter, northern filament attempted but not seen.
SDSS
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