Andrew Cooper
Dec 12, 2021    Waikoloa, HI (map)
20cm f/6 Newtonian, Cave Astrola @ 136x
Seeing: 6 Transparency: 7 Moon: 0%

Bright and obvious, a round disk easily noted in the starfield, about ½' in diameter, brighter to the center, no color or central star noted

Andrew Cooper
Mar 21, 2020    Waikoloa, HI (map)
20cm f/6 Newtonian, Cave Astrola @ 47x
Seeing: 6 Transparency: 6 Moon: 0%

A round nebula, appears as a star that will not focus, bright, round, no central star noted, no color noted, one field south of μHya

Andrew Cooper
Mar 21, 2004    Farnsworth Ranch, Pima Co., AZ (map)
28cm f/10 SCT

Very nice, good sized, bright, blue green color, with magnification a two shell structure stands out, an inner brighter core with an oval shape, an outer circular halo around, central star not visible

Rev. T.W. Webb
May 19, 1885    Hardwick, Herefordshire, England (map)

Planetary nebula 2° s of [Mu Hyd], resembling Jupiter, Sm. says, in size equable light, and color. I found it bright; a little elliptical np, sf, of a steady pale blue light, bearing high powers. H. did not resolve it. Secchi, whose beautiful defining glass accomplished marvels, with 1000, found it a unique object; within a circular nebulosity two clusters, connected by two semicircular arches of stars, forming a sparkling ring, with one star on the hazy ground of the centre. D'A. made out two nuclei near the limb. Huggins sees an oval ring surrounded by broad faint nebulosity; but its spectrum is that of gas, and the bright points can hardly be that of solid matter. L.P. shows nucleus and two rings.

― Celestial Objects for Common Telescopes, T. W. Webb, 1917

Drawings, descriptions, and CCD photos are copyright Andrew Cooper unless otherwise noted, no usage without permission.

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