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NGC 5556 (12,300 of 18,816)


oc gc pln bn dn gx gxcl ast aka lost




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NGC 5556

NGC 5556, AM 1417-290, DDO 243, ESO 446-50, LEDA 51245, MCG-05-34-009, SGC 141739-2900.8, UGCA 389, h 3564, GC 3842

RA: 14h 20m 34.26s
Dec: −29° 14′ 31.9″

Con: Hydra
Ch: MSA:887, U2:372, SA:21


(reference key)

Type: galaxy, SBc

Mag: B=14, V=?

Size: 4.073′ x 2.754′
PA: 148°

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 "eF, L, 2' diameter, has some small stars involved."

Published comments

Photo index

Photo Index by Jim Lucyk: Cat.of South.Peculiar Gal.and Ass. Vol 2 (Arp&Madore, 1987) p8.22.

Sulentic & Tifft (1973)

The RNGC (Sulentic and Tifft 1973) notes that this is a 12.5 mag galaxy. Their coded description reads STELNUC,VDIF,SSTRSUS.

Steve Coe (1992, The Deep-Sky Observer, Webb Society, Issue 1) observing with a 17.5-inch f/4.5 at 100x notes: "eF, pL, R, noy brighter in the middle, DIM."

Modern observations

Steve Coe

Steve Coe, observing with a 17.5" f/4.5 at 100X, notes: "extremely faint, Pretty large, Round, not brighter in the middle, DIM

Brian Skiff

POSS: trapezoid 3'x0'.9; gx 5' W of its center. * on E edge @ 48", and

50" from * S of nuc. sketch on card.

30cm - exlosfcbr, unconcen; hard to see. lies 5' W of elong symmetric

trapezoid 3'x0'.75 aligned SE-NW w/m12.5-13 *s. gx is 2'.5 diam elong

indef as assoc *s confuse: m14.5 * in E edge, two more threshold * in

N edge, m14 * NW w/m14.5 * 1' N of it, another threshold * in W edge.

a 20" spot lies 40" W of the * in the E edge, vis @ 250x. 13Jun1983,


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