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NGC 7479 (17,567 of 18,816)

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NGC 7479

NGC 7479, LEDA 70419, MCG+02-58-060, UGC 12343, Caldwell 44, I 55, h 2205, GC 4892

RA: 23h 04m 56.69s
Dec: +12° 19′ 23.2″

Con: Pegasus
Ch: MSA:1233, U2:213, SA:17

Ref: SIMBAD

(reference key)

Type: galaxy (Seyfert 2), SBbc

Mag: B=11.7, V=?

Size: 4.168′ x 3.162′
PA: 25°

Historical observations

William Herschel (c.1784)

Synonyms: H I-055

Discovered in 1784 by William Herschel with an 18.7-inch f/13 speculum telescope. He called it "cB much elongated in the direction of the meridian, gbM 4' long, 2' broad."

Admiral Smythe (1884)

Admiral Smythe, using a 5.9 inch, has the following to say: "This is very faint but after long gazing under clockwork motion, it comes up, trending very nearly north and south, having a telescopic star at each extreme."

Published comments

Photo index

by Jim Lucyk: Sky&Tel. 1/77 p13, Sky&Tel. 1/79 p107, Sky&Tel. 9/85 p236, Sky&Tel. 10/83 p367, Astronomy mag. 8/83 p84, Deep Sky Monthly 5/81 p5, Burnhams V3 p1392, Observer's Guide (Astro Cards) 9-10/88 p23, The Astrograph 6-7/88 p89.

Ashbrook, J. (1968)

Astronomical Scrapbook: Spiral structure in galaxies. Sky&Telescope, June, 366.

Sulentic & Tifft (1973)

(Sulentic and Tifft 1973) notes that this is a 11.5 mag galaxy. Their coded description reads S,VDIF,KNY,BWDARM PR VDIF SHORT ARM FOLLOWING.

Modern observations

Ancient City Astron.Club (1980)

described as "slightly elongated, elusive through telescope, spike of nebulosity jutting outwards in a southwesterly direction. Bright nucleus fading outwards. 8-inch, 43x."

Raasch, Rick (1993)

writes in "The Focal Point", Volume 6, No. 2 (1993) "Large, 6' X 3', extended NNW-SSE, with a slightly brighter center. There is a 13th magnitude star seemingly imbedded in its northern tip. The tips of the galaxy show hints of curving slightly, indicating that it is a barred spiral."

Steve Coe

Coe, using a 13.1" f/5.6, notes: "NGC 7479 Pretty bright, large and elongated 4 X 1. It has a much brighter core about 20" across at 165X. This object is a very nice barred spiral and that structure can be seen on good evenings. The bar is about 5' in length and each end has a curved glow attached. It looks like a two-armed garden sprinkler in action. Averted vision makes the galaxy grow in size."

Ware, Donald J

:"Large, 5-6'x3', extended NNW-SSE, with a slightly brighter center. There is a 13th magnitude star seemingly imbedded in its northern tip. The tips of the galaxy show hints of curving slightly, indicating that it is a barred spiral."

Tom Lorenzin

Lorenzin, in the e-version of "1000+ The Amateur Astronomers' Field Guide to Deep Sky Observing", notes: "11.8M; 3.2' x 2.5' extent; soft oblong with 14M stellar core; 13M star 3' due N; see photo at BCH-III-1392."

Gross, Todd (IAAC)

Your skill: Intermediate - Many years Date and UT of observation: 7/11/99 07:30 GMT Location & latitude: 22 mi. West of Boston, Ma. 42.3N Site classification: Suburban Limiting magnitude (visual): approx. 5.0 zenith, 4.8 vic.object Seeing (1 to 10 - worst-best): 5-6 Moon up (phase?): No Weather: Clear Instrument: 18" f/4.2 fl=1925mm Newt Magnifications: 226x Filters used: Object: NGC7479 Constellation: Peg. Object data: G-SBc Size(s): 4.1x3.1 Position:23:05, 12:19 Magnitude: 10.8 Personal "rating": B

I can see that this would be really nice in even darker skies. Well define Galaxy highly elongated (bar is edge-on in appearance) with elongated, somewhat brighter core. HOWEVER, I happened to have seen this object in a ccd photo I took a week before, and I knew it was a barred spiral.(but I did not remember the shape) After quite some time, with averted vision primarily, I was able to make out one of the two spiral arms shooting off the (west) tip off the main bar. It was unsual in that it came out at an acute angle , to the north.. making a "V" with the bar. Two foreground stars were prominent, one near the tip on the (east?) end of the bar, and another in the cradle of the "V" already described. thanks! -Todd

Boston Meteorologist Todd Gross

toddg@weatherman.com

Brian Skiff

L&deV: * N edge V=13.4, * SW V=14.4.

Lick: 8cm string member S is m8; nrst string * S is m10, 3'.1 away. * N is at 1'.3.

T&B: * off to S: V=11.1

8cm - 20x: mod f, at N end of 1 deg string of five *s m8-11; last * (m11) immed S of gx. sm concen spot, poss *ar center. BS, 4Oct1983, Anderson Mesa.

15cm - 3'x2', elong N-S. evenly concen. there appear to be *ings on the N end of the neb. concens w/in gx appear as *s of mottlings.

- photo too familiar to make objective description! * @ N end of bar m13.5; m14.5 * SW of center. bar in pa N-S, a narrow lentic outline w/approx circ core and vf sub*ar nuc. S end of bar shows knot sl W of maj axis. arm curling around m14.5 * W from S end only fleetingly vis @ 140x--- perhaps only the spot approx radial from nuc through * SW. rel blank * fld. BS, 29Sep1989, Anderson Mesa.

25cm - loc at N end of a wide pair of *s. 3'x2'. on the N end is m13 *. inside neb no concen is obvious, but seems mottled w/*ings which could be due to clouds in obj itself. [brilliant Skiff!]

30cm - compared w/photo at telescope. 238x: pa0. * 2' N. WSW is m14.2 *; 1' SSE from this is knot. further SSW another knot. bar unevenly br; S end of bar curves to W. * SE of nuc is m14.9.

Paul Alsing

82-inch at McDonald - Observing Report

[amastro] posting, Sat Nov 25, 2006

82" telescope, McDonald Observatory near Fort Davis, Texas, USA

f/13.7, 35mm Televue Panoptic (5' fov, 812x)

This barred spiral has 2 major arms, and completely fills the 5 arc- minute FOV. One of the arms is very subtle and wraps back on itself near the bar, while the other arm ventures far from the nucleus and forms a huge loop. A very unique object in this telescope, and a wonderful surprise, I didn't expect it to look this good.

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