NGC 6891 Planetary Nebula In Delphinus: September 2023 Observer’s Challenge # 176
Mario Motta: Observer from Massachusetts
This was taken with my 32-inch telescope with NB filters (Ha, O3, and S2). Central star prominent, nice detail in the outer nebula.
This is a very bright small planetary in Delphinus, so my exposures were very short at 40 seconds for the Ha and O-III. Total imaging about 1.5 hours.
ZWO ASI 6200 camera, processed in pixInsight.

Roger Ivester: Observer from North Carolina
NGC 6891
Planetary Nebula In Delphinus
Date: August 17th 2023
Telescope: 10-Inch f/4.5 EQ Newtonian
Sketch Magnification: 256x
Field of View: 0.25º
Location: 4.8-5.0 NELM Suburban Backyard
August 17th 2023: Small, well-defined bluish disc, with a faint central star.
August 16th: 6-inch f/6 Newtonian at 127x. Very small, appearing mostly as a star, but with a faint halo, and fairly difficult to determine from the star-field.
