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Type: galaxy, E-S0
Mag: B=12.1, V=11.1
Size: 2.8′ x 1.6′
Synonyms: H II-176, H II-070
Discovered on March 15, 1784 by William Herschel with an 18.7-inch f/13 speculum telescope. He logged it as II-70 and called it "a nebula." On April 17 of the same year he logged II-176, calling it "faint." These two observations refers to the same object, a galaxy in the Virgo Cluster.
The RNGC (Sulentic and Tifft 1973) notes that this is a 12.5 mag galaxy. Their coded description reads EON,BM,37NR.
Observing site: Pinnacles overlook
[12h 42m 48s, 11° 26m 0s] A faint, almost star like, galaxy. There was no sign of the much fainter NGC 4637. Both galaxies appear to be spirals on WikiSky's photographic atlas, although HNGC lists NGC 4638 as an elliptical. Burnham lists it as an E5/S0.
Sky Conditions:The fainter parts of the Milky Way are barely visible.Haziness only visible on the horizon.Atmosphere stable with little interference.
This galaxy has the round shape of a tiny minute marble and that this galaxy's central core is only visible as a soft smudge of faint light.However the galactic nucleus of this galaxy is very tight and compact.This galaxy measures 4'x 3.3'.
The Messier objects
The Bennett objects
The Caldwell list
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