sponsored by psychohistorian.org


Deep Sky Observer's Companion – the online database


Welcome, guest!

If you've already registered, please log in,

or register an observer profile for added functionality.


log in to manage your observing lists























Full database:

Entire DOCdb database of 18,816 objects.



NGC 2775 (5,948 of 18,816)


oc gc pln bn dn gx gxcl ast aka lost




finder chart

altitude today

altitude (year)


½°, , in DOCdb

Warning: date(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone. in /home/yivumoo/public_html/show_object.php on line 167

show browsing

NGC 2775

NGC 2775, LEDA 25861, MCG+01-24-005, UGC 4820, Caldwell 48, I 2, h 564, GC 1771

RA: 09h 10m 20.14s
Dec: +07° 02′ 18.3″

Con: Cancer
Ch: MSA:759, U2:187, SA:12


(reference key)

Type: galaxy, Sa

Mag: B=11.4, V=?

Size: 4.466′ x 3.467′
PA: 155°

Historical observations

William Herschel (c.1784)

Synonyms: H I-002

Discovered in December 1783 by William Herschel with an 18.7-inch f/13 speculum telescope. He called it "cB cL vgbM having a nucleus. Round."

Published comments

Burnham's Celestial Handbook

Burnham calls it a 11.5 mag spiral galaxy in Cancer, measuring 2.2' x 1.5', which is considerably bright, considerably large, slightly elongated, very gradually then very suddenly much brighter to the middle.

Sulentic & Tifft (1973)

The RNGC (Sulentic and Tifft 1973) notes that this is a 11.5 mag galaxy. Their coded description reads BE,R,BM.

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

This galaxy appears on page 10 of "The Hubble Atlas of Galaxies" by Allan Sandage (1961, Washington, DC).

Photo index

Photo Index by Jim Lucyk: Hubble Atl.of Gal. (Sandage 1961) p10, Sky&Tel. 4/67 p256.

Modern observations

Hartung, E.J. (1968) Astron.Obj.South.Tel

Hartung notes that "30cm discloses a conspicuous round haze about 1.5' across, rising much to a bright nucleus but with no sign of structure. 10.5cm shows the nebula clearly though faintly."

Walter Scott Houston

Houston notes that this 11th mag galaxy is easily seen in a 4-inch refractor as a round glow about 2' diameter. In larger telescopes it is a very pleasing sight, A row of six 9th mag stars lies about 10' east of the galaxy."

Steve Coe

Steve Coe, using a 13" f/5.6, notes: "Bright, large, elongated 1.8 X 1 in PA 165 and much brighter in the middle at 220X. The arms of this galaxy are nicely mottled and the central core is elongated 2 X 1 in the same PA as the main body of the galaxy."

Steve Coe, SACNEWS On-Line for March 1996, notes: "bright, large, elongated 1.8 X 1 in PA 165 and much brighter in the middle at 220X. The arms of this galaxy are nicely mottled and the central core is elongated 2 X 1 in the same PA as the main body of the galaxy."

Ancient City Astron.Club (1980)

Listed by the Herschel Club, described as "appearing circular, with bright nucleus, use averted for best view. 8-inch, 48x."

Sanford (1989) Observing the Constellations

Sanford comments that the galaxies in Cancer are mainly faint, "but NGC 2775 is a high-surface-brightness object. With a telescope of 8-inch aperture, it appears as a round, 10th magnitude glow, brighter in the middle."

Tom Lorenzin

Tom Lorenzin, in the electronic version of "1000+ The Amateur Astronomers' Field Guide to Deep Sky Observing", notes: "11.5M; 2.5' diameter; round, soft glow with fairly bright nucleus; !good supernova prospect! see photo at HAG-10."

Brian Skiff

POSS: * @ 2'.75 in pa152 implies 15cm #2 length of 2'.75.

UGC: pa155.

Lick: -77 11' N, -73 13' NW.

T&B: * SE: V=14.0; brtr * E of it: V=12.8; several others meas.

15cm - easy @ 47x. 2'x1' elong N-S. even glow w/occas *ar nuc. good @ 90x.

- mod br & lg @ 30x, where consp sub*ar nuc is vis. 140x: defines strong even concen: circ, 2' diam w/lg diffuse halo. core vbr w/sub*ar nuc still just vis over it. halo reaches halfway to m13.5 * in pa165, which is Wrn of two *s in SE quad. BS, 28Mar1989, Anderson Mesa.

25cm - easy w/lox. 2'x1'.5, elong E-W. m11 *ar nuc. at lox there is impression of * next to the nuc; not so at hix.

30cm - mod br, 3'x1'.5 in pa150. f outer halo which decreases [in brtness?] with increasing radius. brtr 40" core w/m13.5 *ar nuc.

Ware, Donald J

NGC 2775 Donald J. Ware:"The first of many galaxies to come. This object is about 4'x2', oriented NNW-SSE, has a very bright core, with fainter extensions to the listed dimensions. The center appeared to me to be somewhat granular."

Contemporary observations

Tom Bryant

2009-04-17 22:30:00

Observing site: Pinnacles overlook

Telescope: C-11

[9h 10m 18s, 7 2m 0s] A bright, lackluster E0-E2. (Burnham lists this as an Sa).

Favourite lists

Lacaille's catalogue

The Messier objects

Dunlop's catalogue

The Bennett objects

The Caldwell list

Named DSOs

Object search

First search phrase


Second search phrase

Type of object to include:

open cluster
globular cluster
planetary nebula
bright nebula
dark nebula
galaxy cluster
asterism & stars

The Bug Report

DOCdb is still in beta-release.

Known issues, feature requests, and updates on bug fixes, are here:

> Bug Report


Found a bug? Have a comment or suggestion to improve DOCdb? Please let us know!

> Contact us


DOCdb is a free online resource that exists to promote deep sky observing.

You could help by sharing your observations, writing an article, digitizing and proof-reading historical material, and more.

> Find out more

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.