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 6791 (15,695 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 6791

NGC 6791, Cl Berkeley 46, C 1919+377, Ocl 142.0, GC 4492

RA: 19h 20m 53s
Dec: +37° 46′ 18″

Con: Lyra
Ch: MSA:1151, U2:118, SA:8

Ref: SIMBAD, DAML02, Archinal&Hynes (2003)

(reference key)

Type: open cluster, 12r

Mag: B=10.52, V=9.5

Size: 10′
PA: ?

Image gallery

Photos  (1)

Select a photo and click the button to view

Published comments

Phelps, R. L., Janes, K. A. & Montgomery, K. A. (1994)

Phelps, R. L., Janes, K. A. & Montgomery, K. A. (1994) Development of the galactic disk: A search for the oldest open clusters. Astron.J., 107(3), 1079.

Included in Table 6: The oldest open clusters.

Sulentic & Tifft (1973)

(Sulentic and Tifft 1973) notes that this is a open cluster.

Photo index

by Jim Lucyk: Sky&Tel. 3/71 p142, Astronomy mag. 7/85 p78, Burnhams V2 p1177.

Modern observations

Walter Scott Houston

Situated in Lyra, Houston calls this is a "sparse cluster, quarter degree in diameter, that is very difficult to distinguish from its rich milky way background. When I first hunted for it a few months ago, I decided it didn't exist. A later night and lower power finally produced this frail grouping of baout 2 dozen members."

Tom Lorenzin

Tom Lorenzin, in the e-version of "1000+ The Amateur Astronomers' Field Guide to Deep Sky Observing", notes: "11M; 20' diameter; large, faint and rich; a glorious sprinkle of over three-hundred 13M stars; <1 degree ESE of 4.5M Theta LYR."

Contemporary observations

Magda Streicher

(no date)

Alldays (22.50S, 20.12E, 770m).

12-inch f/10 SCT (76x, 218x)

Soft large patch of light 76x, with a multitude of faint stars imbedded of it. Round shape, faint stars mingle well with nebulosity and a busy faint star field of view. Let M57 & 56 stand over in the article.

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.