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Absolute proper motions of open clusters. I. Observational data
Mean proper motions and parallaxes of 205 open clusters were determinedfrom their member stars found in the Hipparcos Catalogue. 360 clusterswere searched for possible members, excluding nearby clusters withdistances D < 200 pc. Members were selected using ground basedinformation (photometry, radial velocity, proper motion, distance fromthe cluster centre) and information provided by Hipparcos (propermotion, parallax). Altogether 630 certain and 100 possible members werefound. A comparison of the Hipparcos parallaxes with photometricdistances of open clusters shows good agreement. The Hipparcos dataconfirm or reject the membership of several Cepheids in the studiedclusters. Tables 1 and 2 are only available in electronic form at theCDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or viahttp://cdsweb.u-strasbg.fr/Abstract.html

Micrometer Measures of Double Stars
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Blue stragglers - A search for binaries in the infrared
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Visual multiples. VIII - 1000 MK types
A total of 1000 new classifications are given for stars brighter than B= 8.0 mag in the Aitken double star catalog. The classificationssupplement 865 classifications obtained in 1981 and 1984. Among thenewly discovered stars are 12 new Ap stars, eight Lambda Bootis stars,one Ba II star, and 60 Am stars. A detailed list of the newclassifications is given.

Photoelectric photometry of early-type stars in a field in Ophiuchus
Not Available

Southern open clusters II. UBV and Hbeta photometry of 11 clusters between galactic longitudes 259d and 280d
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1973A&AS....9...97V&db_key=AST

Untersuchung der offenen Sternhaufen IC 4665, NGC 6633, IC 4756
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Dades d'Observació i Astrometria

Constel·lació:Ophiucus
Ascensió Recta:18h24m45.24s
Declinació:+07°13'52.5"
Magnitud Aparent:8.006
Distancia:724.638 parsecs
Moviment propi RA:4.8
Moviment propi Dec:-5.4
B-T magnitude:8.047
V-T magnitude:8.01

Catàlegs i designacions:
Noms Propis
HD 1989HD 169512
TYCHO-2 2000TYC 445-719-1
USNO-A2.0USNO-A2 0900-12731002
HIPHIP 90242

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