NGC/IC Project Restoration Effort
(This is a very very beta version)
NGC1770
Basic Information
Location and Magnitude
Right Ascension: 4:57:18.0
Declination: -68:24:54
Constellation: DOR
Visual Magnitude:
Historic Information
Discoverer: Dunlop
Year of discovery: 1826
Discovery aperture: 9.0
Observational
Summary description: Cl + neb, pL, pRi, st 11…18
Sub-type: OCL+EN
Corwin's Notes
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NGC 1770 is a large complex of clusters and HII regions in the LMC. The
various positions for it reflect the difficulty in determining its center --
even JH had trouble. His two RA's are discordant by nearly 40 seconds of time.
But when we examine the field, the limits of the association are pretty clear.
On DSS1 (and on DSS2R), that center is about 40 arcsec southeast of the 9th
magnitude star that JH noted in his second observation.
Also see IC 2117, one of the HII knots in the southern part of this star
cloud.
Steve's Notes
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NGC 1770
18" (7/9/02 - Magellan Observatory, Australia): this LMC object is an interesting mix of a star cluster (stellar association LH 12) and associated nebulosity (LMC-N91A = IC 2117), with the nebulosity mostly on the south side. Includes a mag 10 star near the center and a number of mag 11-12 and fainter stars. The stars are mostly on the north side of the nebulosity with several in small clumps.