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HD 69624


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Ultraviolet Imaging Telescope Near-Ultraviolet Bright Object Catalog
We present a photometric catalog of 2244 objects detected by theUltraviolet Imaging Telescope in the near-ultraviolet (NUV; 1650A <λ < 2900 A) during the Astro Space Shuttle mission. Sources inthe catalog are as faint as m_nuv_ ~ 18.8, or f_nuv_ ~ 1.1 x 10^16^ ergss^-1^ cm^-2^ A^-1^, but the survey is not complete to this level.Optical catalogs were used to cross identify sources and derive NUV - Vcolors. A majority of the objects (88%) do indeed have proposed opticalidentifications from catalogs, and most are stars. Our purpose increating the catalog is to form a database useful for identifying veryblue objects and performing Galactic UV stellar population studies.

The VELA star cloud. III - The B8 to A0 stars and interstellar reddening
The present discussion of intermediate band and H-beta observations of360 HD stars B8-A0 in Vela, and all of the CPD stars in a small adjacentregion, notes that the interstellar absorption in both cases can beunderstood as a combination of three absorbing clouds of 1 kpc-A(V) =1.5, 0.5, and 0.17. The major difference in the two environments is thepresence of numerous T Tauri stars in Taurus. Several clusters in theVela region are discussed.

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Gözlemler ve gökölçümü verileri

Takýmyýldýz:Yelken
Sað Açýklýk:08h15m30.22s
Yükselim:-49°03'00.5"
Görünürdeki Parlaklýk:8.379
Uzaklýk:925.926 parsek
özdevim Sað Açýklýk:-8.9
özdevim Yükselim:9.1
B-T magnitude:8.451
V-T magnitude:8.385

Kataloglar ve belirtme:
Özgün isimleri   (Edit)
HD 1989HD 69624
TYCHO-2 2000TYC 8157-536-1
USNO-A2.0USNO-A2 0375-05179460
HIPHIP 40446

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