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Type: galaxy (in group), SBa
Mag: B=12.7, V=?
Size: 3.388′ x 0.891′
Discovered in 1787 by William Herschel with an 18.7-inch f/13 speculum telescope. He called it "cB, lE parallel, mbM, faint branch 1.5' long."
Burnham calls it a 12.6 mag barred spiral galaxy in Bootes, measuring 2.0' x 0.6', which is considerably bright, pretty large, elongated and pretty suddenly brighter in the middle.
The RNGC (Sulentic and Tifft 1973) notes that this is a 12.5 mag galaxy. Their coded description reads EL,DIFWINGS.
G. de Vaucouleurs ("Galaxies and the Universe", Chapter 14 - Nearby Groups of Galaxies) notes that the five brightest members of the NGC 5676 Group are NGC 5676, NGC 5660, NGC 5633, NGC 5689 & IC 1029.
NGC 5689 Donald J. Ware:"2'x0.75', oriented ENE-WSW, sharply concentrated to the center and a non-stellar nucleus."
Tom Lorenzin, in the e-version of "1000+ The Amateur Astronomers' Field Guide to Deep Sky Observing", notes: "12.6M; 3' x 1' extent; soft, small slash surrounds brighter core; axis oriented E-W; SP GAL N5676 50' to NNW."
Steve Coe, using a 13" f/5.6, notes: "Pretty bright, pretty large, much elongated 3 X 1 in PA 90 and much brighter in the middle at 100X. NGC 5693 is to the south and it is faint, small, round and not brighter in the middle."
UGC: pa85. NGC: pa87.
15cm - barely seen as br core w/vf halo. sm.
- mod f spindle w/dbl nuc @ 80x. 140x: 2'.5x0'.4 in pa75. disk rel f & of
losfcbr, core much brtr. rising to sub*ar nuc. threshold * WNW of core.
BS, 17May1991, Texas Star Party.
25cm - pa90, 1'x0'.6. irreg oval knotty core, *ar nuc suspected.
30cm - neat. sm, br dash in pa100. 2'x0'.5 w/good concen. occas *ar nuc. ends
extend only w/averted vis. impressions of * nr nuc, on W?
The Messier objects
The Bennett objects
The Caldwell list
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