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 6318 (14,326 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 6318

NGC 6318, Dunlop 522, Cl Collinder 325, C 1714-394, Bennett 91a, h 3672, GC 4280

RA: 17h 17m 58.5s
Dec: −39° 26′ 32″

Con: Scorpius
Ch: MSA:1459, U2:408, SA:22

Ref: SIMBAD, Collinder (1931), DAML02, Archinal&Hynes (2003)

(reference key)

Type: open cluster, 31m

Mag: B=?, V=11.8

Size: 4′
PA: ?

Image gallery

Sketches  (1)

Select a sketch and click the button to view

Historical observations

Dunlop, James (1827)

James Dunlop discovered this object from Paramatta, New South Wales, and included it as No. 522 in his catalogue of 1827. Using a 9-inch f/12 telescope, he described it as "an exceddingly faint nebula, about 1.5' long and 1' broad, elliptical in the direction of the meridian, with two or three very small stars in it."

John Herschel (1847) Cape Observations

Observed by Sir John Herschel at the Cape of Good Hope with an 18-inch f/13 speculum telescope. He recorded it as "cluster VII class. Rich, pL, R, gbM, stars 12..14th mag, not a globular."

Published comments

Trumpler, R.J. (1928)

Trumpler (Lick Obs Bul, Vol 14, No. 420) gives the diameter as 5' and the class as 2 2 m.

Raab, S. (1922)

Raab, S. (1922) A research on open clusters. Lund Medd. Astron. Obs. Ser. II, 28, 1.

Discussed, based of F-A plates.

Sulentic & Tifft (1973)

The RNGC (Sulentic and Tifft 1973) notes that this is a 12.0 mag open cluster.

Melotte, P.J. (1915)

A catalogue of star clusters shown on Franklin-Adams chart plates. Mem.R.A.S., 60(5), 175-186.

Modern observations

Steve Coe

Steve Coe, observing with a 17.5" f/4.5 at 100X, notes: "Pretty faint, pretty small, pretty rich, somewhat elongated, not much at 100X.

Contemporary observations

Auke Slotegraaf

1997 March 15

Jonkershoek. 11x80 tripod mounted. No moon. Scarecely imaginable faint glow, like a globular cluster.

Magda Streicher

1998 April 27

Location: Campsite (South 23 16 East 29 26).

Sky conditions: Very clear semi transparent.

Instrument: Meade 8" (Super plossl 26mm and wide-angle 18mm eyepiece).

Date: 26 to 28 April 1998.

Field of view: 36.2arc minutes.

Truly faint, large grouping of about 50 stars in a very much roundish shape. The brighter stars scattered out to the edges with the fainter stars in the middle. Low surface brightness.

(no date)

12-inch f/10 SCT (EP: 2-inch 32mm SW 95x 42' fov; 2-inch 14mm UW 218x 23' fov)

Approximately 50 faint stars in a reasonably wide grouping. The cluster divides into three sections with the larger and fainter group in the north. The other two patches position along one another to the west and east barely stand out against the field of view. Appears flimsy and separated from one another deep within the Milky Way section of the sky.

Richard Ford

2012 September, 14th

Location:Night Sky Caravan Park,Bonnievale.

Sky Conditions:Whole Milky Way is visible.The sky is clean.Atmosphere stable with little interference.

Instrument:12-inch Dobsonian.

The stars in this cluster are well detached.In this cluster I have found that most of the stars are nearly the same brightness as each other.The stars are strongly concentrated towards each other in this cluster. This cluster consists of 11th magnitude stars being seen in this open cluster.Around some of the bright stars in this cluster there are some starless patches.This open cluster measures 8.1'*4.1'.Chart No:345,NSOG Vol.2.

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.