NGC/IC Project Restoration Effort

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NGC1767

 

Basic Information


Location and Magnitude


Right Ascension: 4:56:27.4
Declination: -69:24:2
Constellation: DOR
Visual Magnitude: 10.6

Historic Information


Discoverer: Herschel J.
Year of discovery: 1835
Discovery aperture: 18.3

Observational


Summary description: No descr (in Nubec Major)
Sub-type: OCL+EN

Corwin's Notes

===== NGC 1767 is one of a number of nebulae and clusters in the LMC that JH found with a 5-inch refractor. Beginning on 2 November 1836 and continuing through 26 March 1837, JH worked across the Cloud in 34 different zones with his refractor. He does not give us many details of his work on these zones, but if we assume to zeroth order that he worked steadily on these, given that there are 144 days between his beginning and end dates, that would allow him 4.24 days per zone. This would allow us to guess at the discovery dates -- or at least the years -- in which he discovered the objects. Since N1767 was put into zone 9, it was probably one of the earlier objects found, so November or December of 1836 is a reasonable guess as to its discovery date.

Steve's Notes

===== NGC 1767 18" (7/10/05 - Magellan Observatory, Australia): at 218x, this compact LMC cluster appeared bright, small, round, ~25" diameter, containing a very small bright core and an overall high surface brightness. Forms the western vertex of a triangle with NGC 1782 7.4' E and NGC 1772 9.5' SSE. Just 2' N, I noticed a very faint and small, round cluster, ~15" diameter (verified as Shapley-Lindsay 123). These clusters are part of the stellar association LH 8 and within LMC-N94, though no nebulosity was seen.