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

Abell 53

2020-06-15, CSSP, 20" F/4, SQM 21.53, seeing 1", transp. 7/10, 250x with OIII filter. The PN is small in the center of the field (F, S, R, vgbM).

DSS

Arp 90

2020-06-15. Reobservation. CSSP, 20" F/4, SQM 21.73, seeing 1", transp. 7/10, 570x.

SDSS

SN2020jfo

2020-06-15, elev. 2400 ft, transp. 7/10, SQM 21.82, seeing 1", 20" F/4, 360x. SN2020jfo in M61. NGC 4303A = PGC 40087 at edge of field.

SDSS

Arp 76

Arp 76 (M90). 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

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