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 4527 (9,786 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 4527

NGC 4527, LEDA 41789, MCG+01-32-101, UGC 7721, II 37, h 1330, GC 3076

RA: 12h 34m 8.78s
Dec: +02° 39′ 10.6″

Con: Virgo
Ch: MSA:773, U2:239, SA:14


(reference key)

Type: galaxy (AGN), Sb

Mag: B=12.4, V=?

Size: 5.888′ x 2.041′
PA: 67°

Historical observations

William Herschel (c.1784)

Synonyms: H II-037

Discovered in 1784 by William Herschel with an 18.7-inch f/13 speculum telescope. He called it "pretty bright, elongated np-sf, mbM."

Published comments


A supernova erupted in this galaxy in 1915 (13.0p)

Sulentic & Tifft (1973)

The RNGC (Sulentic and Tifft 1973) notes that this is a 11.5 mag galaxy. Their coded description reads EL,MINC,VDIF,KNY,PD MANY DKLNS.

Modern observations

Tom Lorenzin

Tom Lorenzin, in the e-version of "1000+ The Amateur Astronomers' Field Guide to Deep Sky Observing", notes: "11.3M; 5' x 1' extent; bright and oblong with brighter center; 30' to S and a bit E, near 7M star, is SP GAL N4536."

Steve Coe

Steve Coe, observing with a 13" f/5.6, notes: "Bright, pretty large, much elongated 3 X 1 in PA 60, much brighter middle, companion to the north is faint, small and round. This galaxy is a nice edge on at 135X."

Contemporary observations

Tom Bryant

2010 4 14 23:44:18

Observing site: Little Bennett Regional Park

Telescope: C-11

[12h 34m 6s, 2 39m 0s] A streak in the sky, brighter in the middle. (Burnham: N_4527)

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.