NGC/IC Project Restoration Effort
(This is a very very beta version)
NGC6611
Basic Information
Location and Magnitude
Right Ascension: 18:18:45.0
Declination: -13:47:54
Constellation: SER
Visual Magnitude: 6.0
Historic Information
Discoverer: de Chéseaux
Year of discovery: 1745
Discovery aperture:
Observational
Summary description: Cl, at least 100 st L ___DREYER___ S
Sub-type: II3mn
Corwin's Notes
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NGC 6611 = M 16. Messier describes this as a cluster with some faint
nebulosity involved. WH only mentions stars in his single observation, while
JH has no description. The position I give falls between the core of the
cluster and the "Pillars of Creation", an attempt to reflect Messier's
observation. The entire star forming complex is, of course, much larger than
the dimensions I estimate on the DSS1 quick-V image. But that image does give
a good impression of the extent of the object in a small telescope.
Steve's Notes
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NGC 6611
13.1" (8/17/85): a thin dark "finger" extends towards the cluster, positioned just south and beyond the two bright mag 9 stars near the center. This is an extension of the wider projection seen previously several times and which is better defined along the south edge.
13.1" (8/15/82): the "Eagle Nebula" is a fairly bright 30' nebulosity in a striking outstretched eagle shape with a bright scattered cluster superimposed. There is a considerable contrast gain to the nebulosity using a UHC or OIII filter. With a UHC filter, a dark projection (called the "Star Queen") enters on the SE edge of the nebula and extends inward to the west. The cluster members surrounding the "head" of the eagle include ten mag 8-10 stars and a bright pair of mag 8.5 stars (8.2/8.8 at 27"). A dark triangular wedge is visible off the north side.
13.1" (5/26/84): dark protrusion fairly easy at 88x.