sponsored by psychohistorian.org


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.


log in to manage your observing lists























Full database:

Entire DOCdb database of 18,816 objects.



NGC 7217 (17,060 of 18,816)


oc gc pln bn dn gx gxcl ast aka lost




finder chart

altitude today

altitude (year)


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

Warning: fopen(/home/yivumoo/public_html/logs/showobject/20200807.txt): failed to open stream: Disk quota exceeded in /home/yivumoo/public_html/show_object.php on line 168

Warning: fwrite() expects parameter 1 to be resource, boolean given in /home/yivumoo/public_html/show_object.php on line 181

Warning: fclose() expects parameter 1 to be resource, boolean given in /home/yivumoo/public_html/show_object.php on line 182

show browsing

NGC 7217

NGC 7217, LEDA 68096, MCG+05-52-001, UGC 11914, II 207, h 2149, GC 4760

RA: 22h 07m 52.61s
Dec: +31° 21′ 32.9″

Con: Pegasus
Ch: MSA:1166, U2:122, SA:9


(reference key)

Type: galaxy (AGN LINER-type), Sab

Mag: B=11, V=?

Size: 3.63′ x 3.09′
PA: 95°

Historical observations

William Herschel (c.1784)

Synonyms: H II-207

Discovered in 1784 by William Herschel with an 18.7-inch f/13 speculum telescope. He called it "cL, R, gmbM, easily resolved."

NGC/IC Dreyer (1888, 1895, 1908)

The NGC describes it as "bright, pretty large, gradually brighter towards the middle and easily resolvable."

Published comments

Sulentic & Tifft (1973)

The RNGC (Sulentic and Tifft 1973) notes that this is a 11.5 mag galaxy. Their coded description reads S,R,SBM,HISB, MUCH DIF PERIPH ARMS.

Sandage, A. (1961) The Hubble Atlas of Galaxies

This galaxy appears on page 15 of "The Hubble Atlas of Galaxies" by Allan Sandage (1961, Washington, DC).

Photo index

Photo Index by Jim Lucyk: Sky&Tel. 1/79 p107, Burnhams V3 p1393, Hubble Atl.of Gal. (Sandage 1961) p15, Rev.Shapley-Ames Cat.of Bright Gal. (Sandage,Tammann 1981) p123.

Modern observations

Walter Scott Houston

Houston notes that this galaxy "is a challenge for larger amateur scopes, because it is faint and only about 2' in diameter. In my 10-inch at 150x it appeared about mag 11.5."

Ancient City Astron.Club (1980)

Listed by the Herschel Club, described as "magnitude estimated at 11, a spiral 2.6' x 2.3', fuzzy round glow, brightening towards the centre. Situated in an area of dim stars through the eyepiece. 6-inch, 35x."

Steve Coe

Steve Coe, using a 13.1" f/5.6, notes: "NGC 7217 Pretty bright, pretty large, elongated, very bright in the middle at 100X. On a good night it has a mottled halo surrounding the bright core."

Tom Lorenzin

Tom Lorenzin, in the e-version of "1000+ The Amateur Astronomers' Field Guide to Deep Sky Observing", notes: "11.3M; 2.7' x 2.4' extent; small and a little oblong; stellar core; 12M star 5' ESE; 14.5M star N of core, within non-visual outer ring."

Gross, Todd

Observer: Todd Gross

Your skill: Intermediate

Date and UT of observation: 08/09/97 0700 GMT

Location & latitude: 22 miles west of Boston, Ma. 42.3N

Site classification: Suburban

Limiting magnitude (visual): 4.9 (estimated) 4.9(est) in vicinity of object

Seeing (1 to 10 - worst-best): 6

Moon up (phase?): No

Instrument: 16" Dob, 96%, 99% coatings

Magnifications: 97,123,233

Object: NGC7217

Bright, round and small, very bright starlike nucleus, looked very similar to a globular cluster, but with a more stellar center

Brian Skiff

POSS: m10.5-11 * 3'.2 ESE.

UGC: pa(95).

T&B: * ESE: V=10.5.

15cm - vbr @ 50x in *ry fld. 140x: sl oval, elong NE-SW, 1'.8x1'.5. minor axis reaches one-fourth the way to m11 * ESE. strong even concen to circ 30" core and *ar nuc. BS, 1Jul1989, Anderson Mesa.

25cm - br, found @ 47x. 180x: 2' diam and nrly round. perhaps in pa0 in core only. m10.5 * SSE. lg, mod f halo rises to sm nrly *ar nuc.

30cm - well concen, br. 149x: 2'.2 diam going to 1'.8 at 238x. smoothly concen w/brtr nuc < 10" across.

Favourite lists

Lacaille's catalogue

The Messier objects

Dunlop's catalogue

The Bennett objects

The Caldwell list

Named DSOs

Object search

First search phrase


Second search phrase

Type of object to include:

open cluster
globular cluster
planetary nebula
bright nebula
dark nebula
galaxy cluster
asterism & stars

The Bug Report

DOCdb is still in beta-release.

Known issues, feature requests, and updates on bug fixes, are here:

> Bug Report


Found a bug? Have a comment or suggestion to improve DOCdb? Please let us know!

> Contact us


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.

Warning: Unknown: open(/tmp/sess_2c2ed2188538863c451d91076e838a5a, O_RDWR) failed: Disk quota exceeded (122) in Unknown on line 0

Warning: Unknown: Failed to write session data (files). Please verify that the current setting of session.save_path is correct () in Unknown on line 0