August 21, 2024

M51, M57, M101

M51. In 40 mm, small, faint, round, diffuse. A smaller, fainter object near that appears slightly elongated tangentially (NGC 5195). 24 mm does not improve the view. 30 s with 3/4 gain shows the two cores and a clumpy arm that spirals out opposite NGC 5195 and passes midway between the cores. A grainy segment lies opposite this arm. F/3.3 shows this arm in its entirety with 8 s of integration. The arm starts on the side of NGC 5195 and winds outwards around the opposite side of the main galaxy.

M57, Ring Nebula. 8 s, high gain. Off-round, annular. Rim enhanced on the short axis. The central star and another star are visible in the interior.

M101. 8 s, high gain to 30 s, 3/4 gain. Only the core is visible. Small, off-round, brighter in the middle. The appearance is the same at F/3.3.

August 15, 2024

NGC 6905-6946

NGC 6905, PN, Del. "Blue Flash." Not visible in 40 mm without a filter. With OIII at 16 mm: small, faint, round, little brighter to the middle. Two stars near.

NGC 6910, OC, Cyg. A Y-shaped grouping of 9 stars. Brighter, warm-tinged stars at the end of one tine of the Y and next to its stem.

NGC 6913 (M29), OC, Cyg. A trapezoid grouping of bright stars. Fainter stars involved.

NGC 6934 (C47), GC, Del. Visible in 40 mm but needs 10 mm to start showing graininess. Considerably small, faint, round, gradually little brighter to the middle. Edges diffuse. Bright star near.

NGC 6939, OC, Cep. In 40 mm, it is a small grouping of faint and threshold stars. It is better seen at 24 mm, which [setting] shows a wedge profile with the lucida at the apex.

NGC 6940, OC, Vul. This is a large and scattered cluster. The brighter stars are not well separated from the background, but the fainter stars form a definite concentration. Most of it is inside an equilateral triangle of the brighter stars.

NGC 6946 (C12), GX, Cyg. Not visible at 24 mm or higher mag. 

August 14, 2024

NGC 6834-6888

NGC 6834, OC, Cyg. This cluster is dominated by a line of stars with a reddish lucida in the middle. Higher magnification shows fainter stars.

NGC 6838 (M71), GC, Sgt. This cluster requires 17 mm to be seen well. It appears resolved and scattered.

NGC 6823 (M27, Dumbbell). PN, Vul. This is a faint, diffuse, irregular, and poorly concentrated nebula. The brightest part is elongated NS. Star off NW side.

NGC 6864 (M75), GC, Sgr. This cluster can just be caught passing between tree tops at meridian. At 17 mm, it appears as a small, round nebula that is grainy and gradually concentrated to the middle. Edges diffuse.

NGC 6866, OC, Cyg. At 17 and 24 mm, the bright stars in this cluster are arranged in a shape that resembles a mushroom, or a block arrow pointing W. Many fainter stars involved.

NGC 6882, OC, Cyg. In the field of the 40 mm, this is the fainter, smaller grouping of stars just off the N edge of NGC 6885. It is extended EW.

NGC 6885 (C37), OC, Cyg. This is a group of bright stars that stretches EW across the field of 40 mm. Lucida in the middle. NGC 6882 just off N edge.

NGC 6888 (C27, Crescent Nebula). Cyg. In 24 mm with OIII, this nebula is a streak of light stretching SW from one of the bright stars in the field toward a fainter star.