sponsored by psychohistorian.org

DOCdb

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.

List:

log in to manage your observing lists

 browse:

 

 position:

 

 next:

 

 options:

summary

rename

prune

trim

remove

close

copy

combine

plan

bookmark

load

new

delete

marathon

favourite!

Full database:

Entire DOCdb database of 18,816 objects.

 browse:

 position:

NGC 5494 (12,182 of 18,816)

 next:

oc gc pln bn dn gx gxcl ast aka lost

Object:

list

bookmark

finder chart

altitude today

altitude (year)

 search:

½°, , in DOCdb

show browsing

NGC 5494

NGC 5494, ESO 446-25, LEDA 50732, MCG-05-34-001, SGC 140929-3024.6, h 3560, GC 3802

RA: 14h 12m 24.07s
Dec: −30° 38′ 39.3″

Con: Centaurus
Ch: MSA:887, U2:371, SA:21

Ref: SIMBAD

(reference key)

Type: galaxy, Sc

Mag: B=12.71, V=12.02

Size: 2.29′ x 1.995′
PA: 32°

History and Accurate Positions for the NGC/IC Objects (Corwin 2004)

NGC 5494 appears in Swift's big 11th AN list of new nebulae. Dreyer caught this, so Swift's rediscovery was not given an IC number. See IC 2595 for more about the nebulae that Swift found on the night of 22 February 1898.

Historical observations

John Herschel

Discovered by John Herschel at the Cape of Good Hope with an 18-inch f/13 speculum telescope. He recorded it as "pretty bright, large, round, gradually brighter in the middle, resolvable. Stars barely seen in the nebula, besides several others about it."

Published comments

Burnham's Celestial Handbook

Burnham calls this a 12.6 mag spiral galaxy in Centaurus, 1.5' x 1.5', pretty bright, large, round, gradually brighter in the middle.

Helwan Obs. Bulletin No 15 (1915)

F, 1.5'x1.5', R, pBstellN, ? spiral.

Helwan Obs. Bulletin No 22 (1921)

F, 1.5' alm.R; spiral wiht sharp stell.N., rather open whorls and several alm.stell.condensations. See HOB 15.

Sulentic & Tifft (1973)

(Sulentic and Tifft 1973) notes that this is a 12.5 mag galaxy. Their coded description reads SC,R,VDIF,LBM,STENUC KNY ARMS,SEV*SUP.

Favourite lists

Lacaille's catalogue

The Messier objects

Dunlop's catalogue

The Bennett objects

The Caldwell list

Named DSOs

Object search

First search phrase

    and

Second search phrase

Type of object to include:

open cluster
globular cluster
planetary nebula
bright nebula
dark nebula
galaxy
galaxy cluster
asterism & stars
unverified/lost
nova

The Bug Report

DOCdb is still in beta-release.

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

> Bug Report

Feedback

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

> Contact us

Help!

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.