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NGC 7135 (16,896 of 18,816)

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NGC 7135

NGC 7135, IC 5136, ESO 403-35, LEDA 67425, MCG-06-48-001, SGC 214646-3506.6, h 3891, GC 4704

RA: 21h 49m 45.56s
Dec: −34° 52′ 32.7″

Con: Piscis Austrinus
Ch: MSA:1426, U2:383, SA:23

Ref: SIMBAD, Corwin

(reference key)

Type: galaxy (emission-line), S

Mag: B=12.69, V=11.68

Size: 2.818′ x 1.659′
PA: 47°

History and Accurate Positions for the NGC/IC Objects (Corwin 2004)

NGC 7135 appeared in Swift's 11th list (it is No. 209), but was saved from having an IC number given to it by Herbert Howe. Howe saw the star just preceding the object and the triangle of brighter stars also preceding, and realized that Swift's object must be the same as JH's.

However, IC 5136 turned up in Swift's 12th list with a description that makes it sound like yet another observation of this galaxy (see the IC note for more discussion on that object). Since NGC 7130 is in the area, that and IC 5135 are also part of the mess that Swift made here. See those numbers for even more discussion.

This, by the way, is one of the strangest galaxies in the sky, looking rather like a sting-ray, and having a lower surface brightness than a normal galaxy. It is probably the result of a recent collision; most of these pathological objects are.

Historical observations

John Herschel (1847) Cape Observations

Discovered by Sir John Herschel at the Cape of Good Hope with an 18-inch f/13 speculum telescope. He recorded it as "pB, R, bM, 20 arcseconds, a star 14m precedes just out of neb." On a second occassion he called it "pB, L, vgbM, has 5 stars 8m in field surrounding it."

Published comments

de Vaucouleurs, G. (1956)

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).

Sulentic & Tifft (1973)

The RNGC (Sulentic and Tifft 1973) notes that this is a 13.0 mag galaxy. Their coded description reads E,R,BM,EXTDIFHALO.

Photo index

Photo Index by Jim Lucyk: Cat.of South.Peculiar Gal.and Ass. Vol 2 (Arp&Madore, 1987) p7.2.

Modern observations

Steve Coe

Steve Coe, observing with a 13" f/5.6, notes: "Pretty bright, pretty large, elongated 1.5x1 in PA 45 and somewhat brighter in the middle at 100X. There a nice equatorial triangle of 10th mag stars on the west side. The companion galaxy is NGC 7130."

Brian Skiff

15cm - mod f @ 80x in 5' triangle plotted on U2000. 40" diam w/mod-strong even concen to f *ar nuc. m14 * on W just outside halo. BS, 15Nov1993, LCO.

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