NGC/IC Project Restoration Effort
(This is a very very beta version)
NGC1851
Basic Information
Location and Magnitude
Right Ascension: 5:14:6.3
Declination: -40:2:48
Constellation: COL
Visual Magnitude: 7.1
Historic Information
Discoverer: Dunlop
Year of discovery: 1826
Discovery aperture: 9.0
Observational
Summary description: globular! vB, vL, R, vsvvbM, rrr
Sub-type: II
Steve's Notes
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NGC 1851
18" (1/17/09): at 275x this very bright globular spanned ~6' and contained a blazing 1.5' core. Nearly two dozen stars were resolved including a distinctive SSW-NNE string that runs past the west side of the core. The observation was hampered by the low elevation of this globular from northern California (~10¡ elevation).
13.1" (2/20/04 - Costa Rica): at 200x, this compact globular is very bright, strongly concentrated with an intense 1.5' core and a 4-5' fainter halo. The core is very lively and there are ~30 stars resolved [brightest cluster members are mag 13.2], mostly in the loose halo. A neat loop of stars emerges from the core and runs NNE-SSW along the west edge of the core.
17.5" (1/31/87): small bright core, large very mottled halo. About 20 stars are resolved, mostly west of the core.
13" (1/1/84): mottled bright core, unresolved except for two or three faint stars at the west edge.
8" (10/13/81): small, very small bright core, faint halo.