15 Sep 2001 NASP, Mingus Mtn., AZ (map)
46cm f/4.5 Deep Violet
Bright pale blue disk with very dim loops on the east and west
2 Sep 1999 White Stallion Ranch, Marana, As (map)
25cm f/10 SCT
Much easier to find than NGC6818, larger, no color noted, extensions not visible in the 8"", nor the central star, just an oval patch. Some surface irregularity visible
Rev. T.W. Webb
Hardwick, Herefordshire, England (map)
94mm f/18 Tully Achromat
Planetary: somewhat elliptic: very bright for an object of this nature; pale blue; not well defined in the 5-1/2ft. achromat, but bearing magnifying more like a planet than a common nebula. One of the finest specimens of these extraordinary bodies, to which their discoverer, Herschel, assigned a distinct class. E. of Rosse finds a very thin ray on either side, which I saw with Huggins's 15-in. achr. La. detects within it an elliptic ring. Buffham, 9-in spec., an opening. Se., who made its diameters 25"" and 17"", saw it sparkle, and thought it a heap of stars. The spectroscope of Huggins reveals the astounding fact that it is a mass of incandescent gas. About 1-1/3° p [nu Aqr], 5 mg.
13 objects found within 120'
Drawings, descriptions and CCD photos are copyright Andrew Cooper unless otherwise noted, no usage without permission. Use for non-profit and educational reasons is generally given on request.
Positional and some physical information is from the NASA/IPAC Extragalactic Database (NED) which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration.
Additional object data from the SIMBAD database, operated at CDS, Strasbourg, France.
The Digitized Sky Survey was produced at the Space Telescope Science Institute under U.S. Government grant NAG W-2166. The images of these surveys are based on photographic data obtained using the Oschin Schmidt Telescope on Palomar Mountain and the UK Schmidt Telescope.
Dark nebulae data from E.E. Barnard, A Photographic Atlas of Selected Regions of the Milky Way. Ed. Edwin B. Frost and Mary R. Calvert. Carnegie Institution of Washington, 1927
Object descriptions of Rev. Webb from Celestial Objects for Common Telescopes sixth edition, Rev. T.W. Webb, 1917, edited by Rev T.E.Espin.