sponsored by psychohistorian.org
Type: galaxy (Seyfert 1), Sa
Mag: B=11.35, V=10.45
Size: 3.019′ x 2.691′
Select a sketch and click the button to view
Discovered by Sir John Herschel at the Cape of Good Hope with an 18-inch f/13 speculum telescope. He recorded it as "vB,m R, gbM, 45 arcseconds."
The NGC describes this as "very bright, pretty small, round, gradually brighter towards the middle."
De Vaucouleurs (1956) "Survey of bright galaxies south of -35° declination", Mem. Mount Stromlo, No. 13. (photographic study, plates taken with the 30-inch Reynolds reflector, 20-inch diaphragm).
NGC 7213 Group
Duus, A. & Newell, B. (1977) A catalog of southern groups and clusters of galaxies. Astrophys.J.Suppl.Ser., 35, 209-219.
de Vaucouleurs, G. (1975) Nearby groups of galaxies. In: Kuiper, G. (ed) Stars and Stellar Systems. Volume 9: Galaxies and the Universe. Chapter 14, p557.
Includes NGC 7079 and NGC 7213 groups. Foreground: NGC 7090, IC 5152, IC 5201. Background: NGC 6970.
Brightest members: NGC 7213 ( B(0) = 11.57), NGC 7205 ( B(0) = 11.70), NGC 7049 ( B(0) = 12.04), NGC 7083 ( B(0) = 12.14), NGC 7144 ( B(0) = 12.15).
Sandage (Astrophysical Journal, 202, 563-582) notes that this galaxy is a member of the NGC 7213 Group. Members include NGC 7213, NGC 7232, NGC 7233 & IC 5181.
G. de Vaucouleurs ("Galaxies and the Universe", Chapter 14 - Nearby Groups of Galaxies) notes that the Pavo-Indus Cloud includes the NGC 7079 and NGC 7213 Groups. Foreground members are NGC 7090, IC 5152 & IC 5201. NGC 6970 is a background member. The five brightest members of the Pavo-Indus Cloud are NGC 7213, NGC 7205, NGC 7049, NGC 7083 & NGC 7144.
The RNGC (Sulentic and Tifft 1973) notes that this is a 12.5 mag galaxy.
Shobbrook (1966, Mon. Not. R. astr. Soc., Vol 131, p351-363) notes that this member of the Grus Cluster has V = 11.41, B-V = 0.90 and U-B = 0.44. It measures 1.55 by 1.55.
Hartung writes: "This nebula is a bright round hazy object about 1.5' across, rising much to the centre with the edges fading away; it looks like a remote globular cluster . . 7.5cm shows it dimly but quite definitely."
15cm - 20' SE of blazing-blue alpha Gru. 165x (to get rid of scttered light in fld): fairly br, circ, 1'.2 diam w/strong sharp concen to br *ar nuc. clumpy texture like unres LMC cl. BS, 13Nov1993, LCO.
As seen with a 15.5-inch telescope, the galaxy lies just southeast of Alpha Grus in the same low-power field. It appears pretty bright, with two equally bright stars due east, forming a sharp isoceles with the galaxy at the apex. The galaxy appears round as a globular.
Location: Campsite (23 16 South - 29 26 East)
Date: 15th November 1998
Telescope: 8" Meade telescope & 18mm eyepiece.
Field of view: 36.2 arc minutes
Round small soft glow just like a star out of focus. The brilliant white A Grus share the field of view to the west about 2 arc minutes away.
Alldays (22.50S, 20.12E, 770m).
12-inch f/10 SCT (218x, 346x)
Round and small soft glow similar to a star when not in focus. Towards the northwest the brilliant A Grus shares the field in a low powered eyepiece. Appears bright with a trio of stars due east. Brighten to an outstanding nucleus. It appears pretty bright with two equally bright stars due east, forming a sharp isobar with the galaxy at the apex. Discovered by Sir John Herschel, the galaxy is a member of the Grus Cluster. Again a very outstanding nucleus against the round strong glow. It show off a strong feeling to it outstanding against the background star field.
Sky Conditions:The fainter parts of the Milky Way are barely visible.Haziness only visible on the horizon.Atmosphere stable with little interference.
This galaxy has a round shape at both 57x and 75x and that this galaxy is seen as a soft sworl of faint light.Around this galaxy there 9th to 10th magnitude stars being seen.No darker areas are noted around this galaxy.The nucleus of this galaxy is vaguely compact and from the nucleus of this galaxy is bright all over.This galacy measures 3.3'x 3.3'.Challenge Rating:Difficult.Chart No:135,NSOG Vol.3.
The Messier objects
The Bennett objects
The Caldwell list
DOCdb is still in beta-release.
Known issues, feature requests, and updates on bug fixes, are here:
Found a bug? Have a comment or suggestion to improve DOCdb? Please let us know!
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.
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.