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HD 71721


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Longterm Photometry of Variables at ESO - Part Two - the Second Data Catalogue 1986-1990
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1993A&AS..102...79S&db_key=AST

Long-term photometry of variables at ESO. I - The first data catalogue (1982-1986)
This paper presents the catalog of photometric data in the Stromgrensystem obtained during the first four years (October 1982 - September1986) of the Long-Term Photometry of Variables (LTPV) program at ESO.The data are available in computer-readable form.

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:08h26m45.67s
Yükselim:-48°57'22.3"
Görünürdeki Parlaklýk:7.345
Uzaklýk:175.439 parsek
özdevim Sað Açýklýk:-10.6
özdevim Yükselim:-1.9
B-T magnitude:7.314
V-T magnitude:7.343

Kataloglar ve belirtme:
Özgün isimleri   (Edit)
HD 1989HD 71721
TYCHO-2 2000TYC 8158-1855-1
USNO-A2.0USNO-A2 0375-05655779
HIPHIP 41402
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