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HD 84645


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Walraven photometry of nearby southern OB associations
Homogeneous Walraven (VBLUW) photometry is presented for 5260 stars inthe regions of five nearby southern OB associations: Scorpio Centaurus(Sco OB2), Orion OB1, Canis Major OB1, Monoceros OB1, and Scutum OB2.Derived V and (B - V) in the Johnson system are included.

Radial velocities in three fields along the southern galactic equator
A list of radial velocities for 764 stars is given for three fields inthe Vela-Carina region of the galaxy. They were obtained from GPO-platestaken at La Silla and reduced following Fehrenbach's method.Slit-spectra were collected with the 152 cm-spectrographic telescope atLa Silla, to derive an accurate radial velocity for a sufficient numberof calibration stars: out of the 29 stars, 26 had no formerly publishedvalue. The global motions of 10 to 14 km/s can be considered as normalon the basis of galactic rotation. Some stars, however, show highvelocities, and are therefore marked with one or two asterisks in thetable.

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Dades d'Observació i Astrometria

Constel·lació:Vela
Ascensió Recta:09h44m53.14s
Declinació:-55°05'29.1"
Magnitud Aparent:9.031
Moviment propi RA:2.7
Moviment propi Dec:-5.1
B-T magnitude:9.445
V-T magnitude:9.066

Catàlegs i designacions:
Noms Propis   (Edit)
HD 1989HD 84645
TYCHO-2 2000TYC 8589-1953-1
USNO-A2.0USNO-A2 0300-07825970
HIPHIP 47821

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