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HD 180124


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UVBY H-beta photometry of UV-bright stars
uvby H-beta photometry is presented for 90 stars taken from an earlyversion of the Carnochan and Wilson (1983) catalogue of stars that havevery negative UV colors. Two have definite UV excesses (HD 36629, and HD81307). Four early-B stars have UV colors too positive for their visibleclassification, and beta-indices that indicate higher luminosities thanappear possible on galactic distribution grounds. Six late-B starsappear to have discordant flux distributions for which there are noobvious explanations. It is suggested that the high population ofsubluminous stars derived by Carnochan and Wilson is the product of thestatistical treatment used and the extreme patchiness in theinterstellar absorption, which gives rise to large numbers oflittle-reddened stars.

H-beta photometry of northern intermediate galactic latitude early-type stars and galactic structure away from the plane
Photoelectric H-beta photometry is presented for 255 early-type stars atintermediate galactic latitudes. Absolute magnitudes and distances arederived for the more luminous stars. Those with visual magnitudes lessthan or equal to 2.5 and at distances of up to 1 kpc from the galacticplane may follow the spiral structure in the plane.

UBV photometry and MK spectral classification of northern early-type stars at intermediate galactic latitudes
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1977MNRAS.180..691H&db_key=AST

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Gözlemler ve gökölçümü verileri

Takýmyýldýz:Tilkicik
Sað Açýklýk:19h14m19.24s
Yükselim:+25°00'47.5"
Görünürdeki Parlaklýk:7.191
Uzaklýk:392.157 parsek
özdevim Sað Açýklýk:1.4
özdevim Yükselim:-9.5
B-T magnitude:7.172
V-T magnitude:7.19

Kataloglar ve belirtme:
Özgün isimleri   (Edit)
HD 1989HD 180124
TYCHO-2 2000TYC 2127-972-1
USNO-A2.0USNO-A2 1125-11844369
HIPHIP 94526

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