Abstract
A compiled catalogue of astrometric and pho- tometric data for about 2200 stars down to V =1 6 : 8 m is presented. The stars are located in an area with a radius of 22.8 arcmin around the extremely young open clus- ter NGC 6611 with the cluster center at (; )2000:0 = 18 h 18 m 40 s ; 1347:1 0 . The catalogue is based on new reductions of positions, proper motions, and of photo- metric data that have been published in this region and includes, among others, Hipparcos, AC/GSC and Tautenburg Schmidt plate observations. For the member- ship determination, spatial and proper motion distribu- tions of stars in the region were analysed. An extinction map of the area and the cluster color-magnitude diagram down to MV =+ 1 m were constructed. The distance of NGC 6611 was determined as 2:14 0:10 kpc.
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