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 7610 (17,757 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 7610

NGC 7610, NGC 7616, LEDA 71087, MCG+02-59-025, UGC 12511

RA: 23h 19m 41.49s
Dec: +10° 11′ 5.5″

Con: Pegasus
Ch: MSA:1233, U2:214, SA:17

Ref: SIMBAD, Corwin (2004)

(reference key)

Type: galaxy (in cluster), Sc

Mag: B=14.9, V=?

Size: 2.398′ x 1.348′
PA: 69°

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

NGC 7610 and NGC 7616 are two of the objects found by Ainslee Common with his 36-inch reflector. His positions coincide with nothing on the sky, but close to the position for NGC 7610 is a relatively large Scd galaxy that might well have been described as "diffuse" by him. There is nothing at all near the position for NGC 7616, and I suspect that Common's two observations refer to the same object.

This galaxy has been micrometrically measured by Kobold. His second measurement, reported under the number NGC 7610, was corrected on his errata page. The corrected measurement is obviously a repeat measure of the same object as his first measure, listed under NGC 7616. He therefore added a note to that effect, saying that the measured object was "most likely" to be NGC 7616. I think this is because Common's description is "pF, dif" for N7616, but "F, S, dif" for N7610.

Bigourdan has no observations for either object, though he reports having seen NGC 7610 at its NGC position. Carl Wirtz also provides only a description for it, and includes the object under the number "NGC 7616?" in his collection of the Strassberg micrometric positions. The galaxy was subsequently ignored until its appearance in CGCG, MCG, UGC, and the 10th KUG list. Steve Gottlieb reports a visual sighting of it in 1992, but could find nothing near the position of NGC 7616. He pointed out, though, a very faint galaxy a few seconds of time east of the NGC position; I doubt that Common could have seen this, even with a 36-inch. If it were N7616, then Common's descriptions would be backwards: "F" for the much brighter galaxy, and "pF" for the much fainter.

Published comments

Sulentic & Tifft (1973)

The RNGC (Sulentic and Tifft 1973) notes that this is a 15.0 mag galaxy. Their coded description reads S,DIF,WD,KNYARMS,BM DKLNS.

Modern observations

Steve Gottlieb

Steve Gottlieb notes: "17.5-inch: faint, moderately large, 1.5' diameter, low surface brightness, no central concentration. A mag 12 star is just off the SW edge 1.1' from the center. Located at the N edge of the Pegasus I cluster.

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.