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 5511 (12,188 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 5511

NGC 5511, NGC 5511B, LEDA 50771, MCG+02-36-050

RA: 14h 13m 5.41s
Dec: +08° 37′ 56.1″

Con: Bo÷tes
Ch: MSA:744, U2:197, SA:14

Ref: SIMBAD, Corwin (2004)

(reference key)

Type: galaxy (in cluster)

Mag: B=15, V=?

Size: 0.741′ x 0.741′
PA: ?

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

NGC 5511 is probably CGCG 074-141, but might possibly be CGCG 074-142. The southeastern galaxy is a low surface brightness late-type spiral, while the western object is an S0 of normal surface brightness. The S0, though fainter in total magnitude, is more likely to be seen in a long-focus 18.5-inch refractor (Hough's telescope at Dearborn Observatory, the same Clark refractor used by Safford nearly two decades earlier).

However, Hough's published description reads, "Small, very faint. * 10m, * 10m [sic] preceding." This is a typographical error of some sort. There is no star of 10th magnitude preceding the galaxy (I also checked the possibility that a star might be 10 minutes of time or 10 arcmin preceding, but none are in either place). The only fairly bright star in the area is an 11th magnitude double star following CGCG 074-141 by 14.2 seconds. This casts doubt on the identity with either CGCG galaxy, but Hough's position precesses to within 2 arcmin of the galaxies. Thus, I'm going to give the confused description fairly low weight.

Tempel certainly did not see CGCG 074-142. His description of Hough's nebula reads (in a translation by Wolfgang Steinicke):

"I also searched for the last of Hough's nebulae at 14h 07.5m +9d 10.0' and found at this place a faint star of 12m with very little nebular matter."

I think this is a description of the double star following the galaxies. The fainter star is merged with the image of the brighter, and is southwest. It probably lent just a trace of the appearance of nebulosity to the brighter star as Tempel observed it.

Published comments

Sulentic & Tifft (1973)

The RNGC (Sulentic and Tifft 1973) notes that this is a 15.0 mag galaxy. Their coded description reads SLEL,LBM,HISB.

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.