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NGC 5172 (11,498 of 18,816)


oc gc pln bn dn gx gxcl ast aka lost




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NGC 5172

NGC 5172, LEDA 47330, MCG+03-34-041, UGC 8477, h 1613, GC 3558

RA: 13h 29m 19.21s
Dec: +17° 03′ 6.9″

Con: Coma Berenices
Ch: MSA:698, U2:150, SA:14


(reference key)

Type: galaxy, Sc

Mag: B=12.7, V=?

Size: 3.388′ x 2.041′
PA: 103°

Published comments

Sulentic & Tifft (1973)

The RNGC (Sulentic and Tifft 1973) notes that this is a 12.5 mag galaxy. Their coded description reads S,LGDKLN FONUC WDKNY ARM N,VDIF ARM S.

Modern observations

Walter Scott Houston

Houston writes: "NGC 5172 is more than twice the size of NGC 4383 and easily visible in the 4-inch refractor at 100x. I estimate it to be magnitude 12.2. Here again you can use a small telescope to view a galaxy that eluded Herschel."

Brian Skiff

POSS: m12.5 * 3'.5 in pa60. m14 * 43"(+/-2") in pa31 from center. br *

(SkyCat V=7.4) 10'.6 in pa144. gx in pa95; brtst part in center

is oblique bar in pa~35.

13cm - lies about 4' SW of a m12.5 *. 2'x1', elong ENE-WSW. broad wk concen.

4Jun1983, USNO.

30cm - 125x: elong nrly E-W, a m14 * less than 1' NNE. 2'x1'.25 w/poor even

concen, pa80. 250x: no distinct nuc: smooth gradation in light to halo.

4Jun1983, USNO.

- sl concen @ 125x w/distinct broad circ core 1' diam containing a vf *ar

nuc. halo 2'.25x1'.5, elong E-W. lies 11' NW of m7 *. 250x: middle of

core seems elong almost N-S. m13.5 * lies less than 1' N of center.

12Jun1983, USNO.

Contemporary observations

Richard Ford

2011 October, 29th Saturday


Instrument:12-inch Dobsonian Reflector Telescope.

Sky Conditions:The fainter parts of the Milky Way are barely visible with the naked eye.

Transparency Of The Sky:Haziness only visible on the horizon.

Seeing:Atmosphere stable with little interference.

Limiting Magnitude:4.9.

NGC 5172


Object Type:Galaxy.

First Impression:This object looks like a galaxy.

Location:Piscis Austrinus.


Chart Number:No.19(Extract taken out of "Atlas of the Night Sky").

Size:26mm Eyepiece:Field Of View:57'/16=3.5'.

20mm Eyepiece:Field Of View:50'/14=3.5'.

3.5'+ 3.5'=7'.


Size In Arc Minutes:3.5'.


Major Axis:3.5'.


Minor Axis:1.1'.

Galaxy is 3.5'* 1.1'.

Brightness:Magnitude 11.9.

Brightness Profile:From the central outskirts of this galaxy the nucleus grows slightly brighter.

Challenge Rating:Very Difficult.



This galaxy is seen as an oval faint blur of soft light which has a faint galactic nucleus.However I have found some darker areas of uneven brightness around the outskirts of this galaxy.

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