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DOCdb

Deep Sky Observer's Companion – the online database

 

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Entire DOCdb database of 18,816 objects.

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NGC 4804 (18,691 of 18,816)

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NGC 4804

NGC 4804, IV 40, GC 3307

Historical observations

William Herschel (c.1784)

Synonyms: H IV-040

Discovered in 1786 by William Herschel with an 18.7-inch f/13 speculum telescope. He called it "suspected. A pB star with a seeming brush to it np may be a vS neb. close to it. No time to verify it." In the Notes to the 'Catalogue of a Second Thousand of New Nebulae and Cluster of Stars' a comment reads: "Not found by Bigourdan."

Published comments

Sulentic & Tifft (1973)

The RNGC (Sulentic and Tifft 1973) notes that this is a nonexistent object. Their coded description reads =4802 DC.

Helwan Obs. Bulletin No 15 (1915)

Not shown (exp 60m) nor found visually, probably = 4802.

Helwan Obs. Bulletin No 21 (1920)

A double star sepn. 25'', no neb. here. See HOB 15.

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Everything on DOCdb.net is © 2004-2010 by Auke Slotegraaf, unless stated otherwise or if you can prove you have divine permission to use it. Before using material published here, please consult the Creative Commons Attribution-Non-Commercial-Share Alike 2.5 License. Some material on DOCdb is copyright the individual authors. If in doubt, don't reproduce. And that goes for having children, too. Please note that the recommended browser for DOCdb is Firefox 3.x. You may also get good results with K-Meleon. Good luck if you're using IE. A successful experience with other browsers, including Opera and Safari, may vary.