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The 78th Name-List of Variable Stars
We present the next regular Name-List of variable stars containinginformation on 1706 variable stars recently designated in the system ofthe General Catalogue of Variable Stars.
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A catalog has been compiled of 305 early-type stars to F0 and 15thmagnitude in 218 sq deg at the South Galactic Pole. Stromgren photometryand medium- and high-resolution spectra for many of the catalog starshave been obtained. Radial velocities, H-beta line widths, Balmer jumps,and Ca II K line equivalent widths have been measured and tabulated.Rotational velocities were obtained for eight distant A stars and arefound to be typical of values for normal young main sequence stars.
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The ages, abundances, and kinematics of a large number of early-typestars at the south Galactic pole are derived to examine the properties,augment the sample of high-velocity stars, and study hypothesesconcerning their origin. The results are compared to a group of normal Astars near the disk. It is suggested that at around 6.5 X 10 to the 8thyr ago, a major source of relatively low abundance hydrogen was accretedby the Galactic disk, forming young high-velocity stars that do notpartake of the age-abundance-kinematics relationships shown by otherstellar groupings.
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Abstract image available at:http://adsabs.harvard.edu/abs/1986MNRAS.223..629M
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Member of following groups:
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Observation and Astrometry data
| Constellation: | ちょうこくしつ座 |
| Right ascension: | 00h57m43.80s |
| Declination: | -26°13'22.5" |
| Apparent magnitude: | 9.995 |
| Proper motion RA: | 28.9 |
| Proper motion Dec: | 2.8 |
| B-T magnitude: | 10.365 |
| V-T magnitude: | 10.026 |
Catalogs and designations:
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INHABITED SKY
