Type | Planetary Nebula |
---|---|
Magnitude | 11.1 |
Size | 1.7' x 0.73' |
Right Ascension | 20h 22' 23.0" (2000) |
Declination | 20° 6' 16" N |
Constellation | Delphinus |
Description | B, pS, R, 4S* nr |
Classification | 3(3) |
Andrew Cooper
Apr 19, 2012 Hale Pohaku, HI (map)
46cm f/4.5 Newtonian, Deep Violet @ 262x
Seeing: 7 Transparency: 7 Moon: 0%
A bright planetary, about 2' in diameter, round, distinct outer boundary, no color noted, central star is visible with averted vision
Andrew Cooper
Aug 27, 2006 TIMPA, Avra Valley, AZ (map)
28cm f/10 SCT Gypsy
Modest planetary nebula nestled into a group of stars, round with some structure visible, no obvious color, no central star noted, about 2' in diameter, slightly brighter at the center and the halo is uneven in brightness as well, three brighter stars bracket the nebula (mags. 7.5, 10.3 and 11.3)
Andrew Cooper
Jun 9, 2002 Las Cienegas NCA, Pima Co., AZ (map)
46cm f/4.5 Deep Violet
Round, some structure in the north-south axis of the nebula, nested in a nice group of bright stars
Rev. T.W. Webb
May 19, 1885 Hardwick, Herefordshire, England (map)
Small, faint, misty, ill-defined, closely surrounded by several small stars. E. of Rosse Spiral.― Celestial Objects for Common Telescopes, T. W. Webb, 1917
18 Sagittae | HD 194577 |
Drawings, descriptions, and CCD photos are copyright Andrew Cooper unless otherwise noted, no usage without permission.
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