NGC/IC Project Restoration Effort
(This is a very very beta version)
NGC4147
Basic Information
Location and Magnitude
Right Ascension: 12:10:6.2
Declination: +18:32:33
Constellation: COM
Visual Magnitude: 10.4
Historic Information
Discoverer: Herschel W.
Year of discovery: 1784
Discovery aperture: 18.7
Observational
Summary description: globular, vB, pL, R, gbM, rrr
Sub-type: VI
Corwin's Notes
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NGC 4147. See NGC 4153.
Steve's Notes
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NGC 4147
17.5" (4/13/96): moderately bright, fairly small, irregular 2'-2.5' diameter, very small bright core. A few faint stars are resolved at 220x including one brighter star at the south edge. Appears on the verge of more extensive resolution. At 280x, the halo clearly has an irregular outline and several stars are resolved in extensions or star lanes. The core is mottled and intense but not resolved.
17.5" (3/20/93): fairly bright, moderately large, round, 2.5' diameter. Approximately six faint stars are just resolved around the edges of the halo including a single easy mag 14 star at the SSW edge. The compact core is mottled and clumpy but has no clean resolution. There is an impression of several star lanes in the halo just below the limit of resolution.
A 2010 journal article on the capture of globular clusters, mentions NGC 4147 may be associated with SagDEG (in addition to Terzan 7, Terzan 8, Arp 2 and Pal 12).