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NGC 3521 (7,481 of 18,816)

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NGC 3521

NGC 3521, LEDA 33550, MCG+00-28-030, MGC 96918, UGC 6150, I 13, h 818, GC 2301

RA: 11h 05m 48.86s
Dec: −00° 02′ 5.9″

Con: Leo
Ch: MSA:777, U2:236, SA:13

Ref: SIMBAD

(reference key)

Type: galaxy (low surface brightness), Sbc

Mag: B=10.1, V=?

Size: 10.71′ x 5.37′
PA: 163°

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Photos  (1)

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Historical observations

William Herschel (c.1784)

Synonyms: H I-013

Discovered in 1784 by William Herschel with an 18.7-inch f/13 speculum telescope. He called it "vB mE mer smbM 7 or 8' long."

Published comments

Doig, P. (1925)

Doig, P. (1925) Notes on the nebulae and clusters in Webb's 'Celestial Objects for Common Telescopes' (Sixth edition, Vol.ii). Part II. M.N.R.A.S., 35(8), 280.

Photo index

Photo Index by Jim Lucyk: Burnhams V2 p1082, Sky&Tel. 8/87 p138, Observer's Guide (Astro Cards) 3-4/88 p27.

Sandage, A. (1961) The Hubble Atlas of Galaxies

This galaxy appears on page 15 of "The Hubble Atlas of Galaxies" by Allan Sandage (1961, Washington, DC).

de Vaucouleurs, G. (1975)

de Vaucouleurs, G. (1975) Nearby groups of galaxies. In: Kuiper, G. (ed) Stars and Stellar Systems. Volume 9: Galaxies and the Universe. Chapter 14, p557.

p 590: "The present data on nearby groups may nevertheless help to answer the simpler question:Are there isolated galaxies? ... out of the 60 galaxies in this objectively selected sample, only eight have not been associated with one of the 55 nearby groups, viz. NGC 404, NGC 1313, NGC 2903, NGC 3109, NGC 3521, NGC 6744, NGC 6946 & IC 5152. In addition there is a possibility that a few galaxies, such as NGC 1316, NGC 4594, NGC 4826 are not really members of the groups (For I, Vir Y, CVn I) to which they have been tentatively assigned. Furthermore, the reality of the NGC 5128 chain as a physical unit may be questionable; but then it is difficult to know where to stop in this 'dismemberment' of loose groups, and the local outcome of an overconservative attitude would be to exclude from consideration all but a few rich clusters and dense groups... on the other hand, several of the eight supposedly isolated galaxies might yupon further investigation turn out to be members of some of the nearer groups; in particular, NGC 404, NGC 3109 and IC 1512 should be examined for possible membership in the Local Group. Other (more remote) possibilities are NGC 1569, IC 342 and perhaps some heavily obscured systems as yet unrecognized. For example, IC 10, although long suspected, was only recently established as a Local Group member (Roberts 1962, de Vaucouleurs and Ables 1965). ... to the writer's knowledge, NGC 1313 and NGC 6744 in the southern sky, and probably NGC 2903 and NGC 6946 in the northern sky, are truly isolated galaxies not associated with any nearby group, although both are in the larger Local Supercluster."

Sulentic & Tifft (1973)

The RNGC (Sulentic and Tifft 1973) notes that this is a 10.5 mag galaxy. Their coded description reads S,B,EL,DIFKNTIW SSTR.

Modern observations

Walter Scott Houston

This galaxy lies half a degree due East of 62 Leonis. Its oval shape is 7' by 4' and has a total magnitude of 8.9 While it can be seen in a 2-inch refractor, a 3-inch will reveal the bright central region.

Brian Skiff

T&B: m12 * N (7cm) V=12.4.

7cm - br lg gx @ 30x in fld w/many br *s. 50x: fat oval in 2:1 ratio reaches 2/3 way to m12 * N out maj axis. br *ar nuc inconsp in hisfcbr oval core, ill-def from halo. BS, 12Apr1992, Anderson Mesa.

Tom Lorenzin

Tom Lorenzin, in the electronic version of "1000+ The Amateur Astronomers' Field Guide to Deep Sky Observing", notes: "10.2M; 6' x 4' extent; very bright and large; !good supernova prospect! see photo at HAG-15; 30' E of 6M 62 LEO."

Contemporary observations

Tom Bryant

2007-05-11 23:00:00

Observing site: Pinnacles overlook

Telescope: C-8

[11h 5m 48s, -0 2' 0"] A bright nucleus surrounded by a uniform envelope.

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