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Type: galaxy, E
Mag: B=12.5, V=11.48
Size: 3.019′ x 2.29′
Synonyms: H III-139
Discovered in 1784 by William Herschel with an 18.7-inch f/13 speculum telescope. He called it "Two, nearly parallel 7' distant, Both vF, not vS, R." The two objects are NGC 5898 and NGC 5903.
Observed by Sir John Herschel at the Cape of Good Hope with an 18-inch f/13 speculum telescope. He recorded it as "B, R, pgbM, 20 arcseconds." On a second occassion he called it "pF, R, gpmbM, 30 arcseconds."
The RNGC (Sulentic and Tifft 1973) notes that this is a 13.0 mag galaxy. Their coded description reads E,R,BM,COM2'SOUTH.
Sandage (1975(Astrophysical Journal, 202, 563-582) notes that this galaxy is a member of the NGC 5898 Pair. Members include NGC 5898, NGC 5903 & ESO 514-G 3.
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 is seen well as a well defined circular like shape as a very faint smudge of light at both 57*and 75'.Only the nucleus of this galaxy is seen which is equally vague.This galaxy measures 2.8'*0.9'.The nucleus of this galaxy is slightly brighter compared to the far outskirts of this galaxy.
The Messier objects
The Bennett objects
The Caldwell list
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