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NGC 5463 (12,106 of 18,816)


oc gc pln bn dn gx gxcl ast aka lost




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NGC 5463

NGC 5463, NGC 5463A, LEDA 50299, MCG+02-36-040, UGC 9017, III 58, GC 3780

RA: 14h 06m 10.55s
Dec: +09° 21′ 11.4″

Con: Bo÷tes
Ch: MSA:720, U2:196, SA:14


(reference key)

Type: galaxy (in cluster), S

Mag: B=14.1, V=?

Size: 1.202′ x 0.467′
PA: 49°

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

NGC 5463. Though there is no problem with the identity of this object, the NGC position, adopted from two micrometric observation by Tempel (published in his 8th list) is 16 seconds west of the true position. I've not been able to find why Tempel's reduced position is wrong (even if he used the BD position for his comparison star, his position would only be 1-2 seconds of time off), but re-reducing his offsets using the GSC position for his comparison star (BD +10 2619) leads to a position much closer to the modern position.

However, Tempel's position is still 12-14 arcsec off, further than I would have expected. Either the comparison star has a large proper motion, or Tempel's measurements are somehow in error. Other micrometric positions of his that I've re-reduced have had larger-than-expected offsets from modern positions, so I suspect that his measurements simply have larger standard deviations than would be normal for state-of-the-art work in the mid-1880s.

Historical observations

William Herschel (c.1784)

Synonyms: H III-058

Discovered in 1784 by William Herschel with an 18.7-inch f/13 speculum telescope. He called it "eF, S, verified with 240 power and lE."

Published comments

Sulentic & Tifft (1973)

The RNGC (Sulentic and Tifft 1973) notes that this is a 14.0 mag galaxy. Their coded description reads EL,LBM,APP TWDS COM.

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