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HD 26512


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Mesures de vitesses radiales. VII. Accompagnement AU sol DU programme d'observation DU satellite Hipparcos. Radial velocities. VII. Ground based measurements for Hipparcos.
We publish 734 radial velocities of stars distributed in 28 fields of4x4deg. We continue the PPO series (Fehrenbach et al. 1987; Duflot etal. 1990 and 1992), using the Fehrenbach objective prism method.

Radial-velocity measurements. V - Ground support of the HIPPARCOS satellite observation program
The paper presents data on 1070 radial velocity measurements of starsdistributed in 39 fields measuring 4 deg x 4 deg. The PPO series ofFehrenbach et al. (1987) and Duflot et al. (1990) is continued using theFehrenbach objective prism method.

A spectrophotometric survey of stars along the Milky Way. IV
In the present paper a catalogue of spectrophotometric quantities,spectral types, monochromatic magnitudes and colour equivalents is givenfor all stars brighter than the magnitude m4400 = 10.5 in aregion of the Milky Way in Perseus. No absorption is found for starscloser than about r = 100 pc. The absorbing clouds are situated atdistances closer than 1 kpc and at about 2.5 kpc in the local arm andthe Perseus arm, respectively. The space between the two arms is freefrom absorption. It is also concluded that the Perseus arm continuesbeyond l = 140 deg, containing not only hydrogen gas but also dust to atleast l = 150 deg), while the content of OB stars decreases abruptly atl = 140 deg.

Measurements of hydrogen lines in B-stars by a method of photographic narrow-band photometry.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1971A&A....10..321F&db_key=AST

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Gözlemler ve gökölçümü verileri

Takýmyýldýz:Zurafa
Sað Açýklýk:04h14m22.40s
Yükselim:+54°31'27.2"
Görünürdeki Parlaklýk:7.34
Uzaklýk:191.939 parsek
özdevim Sað Açýklýk:-9.8
özdevim Yükselim:2.8
B-T magnitude:7.451
V-T magnitude:7.35

Kataloglar ve belirtme:
Özgün isimleri   (Edit)
HD 1989HD 26512
TYCHO-2 2000TYC 3723-241-1
USNO-A2.0USNO-A2 1425-05000819
HIPHIP 19774
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