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|The intermediate-age open clusters Ruprecht 61, Czernik 32, NGC 2225 and 2262|
We present the first BVI CCD photometry to V= 22.0 of four fieldscentred on the region of the southern Galactic star clusters Ruprecht61, Czernik 32, NGC 2225 and 2262 and of four displaced control fields.These clusters have never been studied before, and we provide for thefirst time estimates of their fundamental parameters, specificallyradial extent, age, distance and reddening. We find that the fourclusters are all of intermediate age (around 1Gyr), close to the Sun andpossess lower than solar metal abundance.
|Collaborative Research of Open Star Clusters|
Preliminary results on observations of open clusters are pre-sented. Theproject has been initiated in the framework of the Uzbek-Taiwan andTaiwan-Baltic collaboration, mainly to upgrade and make use offacilities at Maidanak Observatory. We present detailed,multi-wavelength studies of the young cluster NGC 6823 and theassociated complex nebulosity, to diagnose the young stellar populationand star formation history in the region. In addition, 7 compact openclusters have been monitored for stellar variability. We show howobservations like these could feasibly be used to look for exoplanettransit events. We also expect to join the Whole-Earth Telescope effortin future campaigns for asteroseismology.
|The young open clusters NGC 2244 and NGC 2264|
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1991RMxAA..22...99P&db_key=AST
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