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HD 83312


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Galactic distributions and statistics of the HD stars in the michigan spectral catalogue.
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A catalog of 1929 stars showing H-alpha emission on photographic platesis presented which covers the entire southern sky south of declination-25 deg to a red limiting magnitude of about 11.0. The catalog providesprevious designations of known emission-line stars equatorial (1900) andgalactic coordinates, visual and photographic magnitudes, H-alphaemission parameters, spectral types, and notes on unusual spectralfeatures. The objects listed include 16 M stars, 25 S stars, 37 carbonstars, 20 symbiotic stars, 40 confirmed or suspected T Tauri stars, 16novae, 14 planetary nebulae, 11 P Cygni stars, 9 Bep stars, 87 confirmedor suspected Wolf-Rayet stars, and 26 'peculiar' stars. Two new Tassociations are discovered, one in Lupus and one in Chamaeleon. Objectswith variations in continuum or H-alpha intensity are noted, and thedistribution by spectral type is analyzed. It is found that the skydistribution of these emission-line stars shows significantconcentrations in the region of the small Sagittarius cloud and in theCarina region.

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Datos observacionales y astrométricos

Constelación:Quilla
Ascensión Recta:09h34m29.80s
Declinación:-66°07'20.1"
Magnitud Aparente:7.465
Distancia:689.655 parsecs
Movimiento Propio en Ascensión Recta:-13.3
Movimiento Propio en Declinación:5.8
B-T magnitude:7.469
V-T magnitude:7.466

Catálogos y designaciones:
Nombres Propios
HD 1989HD 83312
TYCHO-2 2000TYC 8953-1555-1
USNO-A2.0USNO-A2 0225-06238186
HIPHIP 46978

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