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HD 87442


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Radial velocities. Measurements of 2800 B2-F5 stars for HIPPARCOS
Radial velocities have been determined for a sample of 2930 B2-F5 stars,95% observed by the Hipparcos satellite in the north hemisphere and 80%without reliable radial velocity up to now. Observations were obtainedat the Observatoire de Haute Provence with a dispersion of 80Ä,mm(-1) with the aim of studying stellar and galactic dynamics.Radial velocities have been measured by correlation with templates ofthe same spectral class. The mean obtained precision is 3.0 km s(-1)with three observations. A new MK spectral classification is estimatedfor all stars. Based on observations made at the Haute ProvenceObservatory, France and on data from The Hipparcos Catalogue, ESA.Tables 4, 5 and 6 are only available in electronic form at the CDS viaanonymous ftp to cdsarc.u-strasbg.fr or viahttp://cdsweb.u-strasbg.fr/Abstract.htm

A second list of wide visual binaries
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A second list of wide visual binaries
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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.

Über die absolute Energieverteilung der Sternstrahlung von 4000 bis 10000 Å und über die Bestimmung effektiver Temperaturen. Mit 6 Textabbildungen
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Gözlemler ve gökölçümü verileri

Takýmyýldýz:Kucuk Aslan
Sað Açýklýk:10h05m55.87s
Yükselim:+39°34'55.5"
Görünürdeki Parlaklýk:7.34
Uzaklýk:108.696 parsek
özdevim Sað Açýklýk:-76.4
özdevim Yükselim:-20.8
B-T magnitude:7.589
V-T magnitude:7.361

Kataloglar ve belirtme:
Özgün isimleri
HD 1989HD 87442
TYCHO-2 2000TYC 3000-654-1
USNO-A2.0USNO-A2 1275-07648745
HIPHIP 49466
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