August 3, 2022

Abell 67


Abell 67, Aql. PK 43-13.1. 2022-07-30, Cherry Springs (700 m a.s.l.), transp. 7/10, seeing 1", sky 21.50 mag/arcsec^2. Telescope aperture 508 mm, F/4 Newtonian. Ocular: 13 mm wide-field. Filter: OIII. Field notes: The nebula is immediately visible with 13 mm and OIII filter, appears slightly elongated EW to the threshold star on its W edge. [Nebula is distinct in Panstarrs g.]

Abell 65

Abell 65, Sgr. PK 17-21.1. 2022-07-30, Cherry Springs (700 m a.s.l.), transp. 7/10, seeing 1", sky 21.50 mag/arcsec^2. Telescope aperture 508 mm, F/4 Newtonian. Ocular: 8 mm wide-field. Filter: OIII. Field notes: Not visible in 13 mm. Faint but definite, diffusely elongated NW-SE 1:2 in 8 mm with OIII filter. The "central star" is better seen without the filter but still glimpsed with it. [This is a high-contrast green nebula on Panstarrs. The photographic outline in g matches the observation.]