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HD 63006


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Uvby-beta observations of 528 type B stars with V between the 8th and 9th magnitude
The paper presents uvby-beta measurements of 528 type B stars selectedfrom the SAO Catalog on the basis of two criteria: the spectral types inthe range B3-B5 and mV between the 8th and the 9th magnitude. Reddeningindependent (c1) values are estimated from the spectral classificationand compared to the observed values. No systematic trend with observed(b-y), H-beta, or spectral type appears to be present, but the range of(c1) residuals is surprisingly large. A rather large part of the starshas small beta values, smaller than for the BIa supergiants. Only twoare classified as O stars and most of them have the suffix e, ne, ornne. Most beta values for the O type stars are slightly above the upperlimit of 2.585 m.

H-beta photometry of southern early-type stars
H-beta photoelectric photometry is presented for 209 southern hemisphereearly-type stars from the HD catalog with galactic latitudes /b/ greaterthan 6 deg. Four-color photometry exists for all these stars and MKtypes for most of them. Absolute magnitudes have been estimated for allbut the emission-line stars and distances from the sun and the galacticplane determined.

Four colour photometry of southern early-type stars.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1978MNRAS.182..629K&db_key=AST

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Gözlemler ve gökölçümü verileri

Takýmyýldýz:Pupa
Sað Açýklýk:07h44m56.73s
Yükselim:-40°27'46.0"
Görünürdeki Parlaklýk:8.404
Uzaklýk:363.636 parsek
özdevim Sað Açýklýk:-2.6
özdevim Yükselim:6.6
B-T magnitude:8.389
V-T magnitude:8.403

Kataloglar ve belirtme:
Özgün isimleri   (Edit)
HD 1989HD 63006
TYCHO-2 2000TYC 7649-1054-1
USNO-A2.0USNO-A2 0450-04695652
HIPHIP 37790

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