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 5808 (12,733 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


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 5808

NGC 5808, NGC 5819, UGC 9609, LEDA 53251, III 311, GC 4022

RA: 14h 54m 2.9s
Dec: +73° 07′ 53″

Con: Ursa Minor
Ch: MSA:532, U2:10, SA:2

Ref: NGC/IC

(reference key)

Type: galaxy, SBbc

Mag: B=14.3, V=13.5

Size: 0.9′ x 0.9′
PA: ?

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

NGC 5808 = NGC 5819. In spite of what Dreyer says in his notes to WH's Papers, the galaxy is very nearly between two stars about 6 arcmin apart, just as WH claims. D'Arrest's description ("Forms a triangle with two stars") is also correct -- the triangle is quite flat. D'A's position is pretty good, WH's less so: it is out by a minute of time in RA, and 6.5 arcmin in Dec. But there is no doubt concerning the identity; the stars nail it down.

Historical observations

William Herschel (c.1784)

Synonyms: H III-311

Discovered in 1785 by William Herschel with an 18.7-inch f/13 speculum telescope. He called it "vF, S, iR, between two pretty small stars, 6' apart."

NGC/IC Dreyer (1888, 1895, 1908)

Dreyer notes: "d'Arrest and Bigourdan have only seen a nebula (NGC 5819) +1 minute -7' from H's place, but it is not in the middle between two stars 6' apart. Bigourdan has an object in +48 seconds, -3' from H's place, but it is probably only a vF star."

Published comments

Sulentic & Tifft (1973)

The RNGC (Sulentic and Tifft 1973) notes that this is a nonexistent object. Their coded description reads =5819 S.

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.