NGC/IC Project Restoration Effort
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NGC1722
![](Images/negative_NGC1722-ngcicproject.jpg)
Basic Information
Location and Magnitude
Right Ascension: 4:51:50.7
Declination: -69:23:56
Constellation: DOR
Visual Magnitude: 13.2
Historic Information
Discoverer: Dunlop
Year of discovery: 1826
Discovery aperture: 9.0
Observational
Summary description: Cl, pF, S, R, 2nd of 3
Sub-type: OCL+EN
Corwin's Notes
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NGC 1722 is the second of three "clustering patches" in the LMC (the others
are NGC 1712 and NGC 1727, both of which see). It is pretty ill-defined, and
involves a considerable amount of nebulosity. It is probably better described
as an association than a cluster. The three brightest patches in the
association make up IC 2111, which also see.
Steve's Notes
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NGC 1722
18" (7/10/05 - Magellan Observatory, Australia): in a small group of LMC clusters with nebulosity including NGC 1727 and NGC 1712. At 128x appears as a fairly faint, irregular hazy region with a few stars resolved and a small, bright knot (IC 2111). Good response to the UHC filter. Located 4' SW of NGC 1727. This is a very young open cluster with an unevolved main sequence and forms the eastern component of association LH 2.
18" (7/9/02 - Magellan Observatory, Australia): the second of a trio of LMC clusters and nebulosity at 128x and UHC filter. At the core is a small, bright 15" knot = IC 2111 and surrounding this is a larger 2'-3' group of faint haze and some stars. NGC 1727 lies 4.5' NE and NGC 1712 3.9' SW.