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HD 154107


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Radial velocities of bright southern stars. V - 146 Population II F stars and related stars
This paper presents new radial velocity determinations, based on 20 A/mmcoude plates, for 146 southern stars brighter than m(v) = 8.3. Drawnfrom the catalog of uvby-beta photometry of southern A5-G0 stars byOlsen (1983), the program stars are certain or suspected Population IIstars. One triple-lined and 10 double-lined binaries have been detected,including HD 210737, for which a preliminary orbit has been derived.Notes on spectral peculiarities are given.

Estimation of spectral classifications for bright southern stars with interesting Stromgren indices
This paper investigates the degree of success with which uvby photometrycan be applied to predict spectral classifications for 947 A, F, and Gstars brighter than an apparent magnitude of 8.3 and with four-colorindices indicating some kind of interesting, unusual, or peculiarspectrum. One or several possible spectral classifications are estimatedfor each star from photometry alone, double stars are distinguished, andthe estimates are compared with published classifications. The resultsshow that the framework provided by uvby photometry can be extended toinclude most G and K stars, reddened stars, peculiar stars, and certaintypes of double star.

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观测天体数据

星座:天蠍座
右阿森松:17h04m46.30s
赤纬:-31°21'46.1"
视星:7.4
距离:10000000 天文距离
右阿森松适当运动:1
赤纬适当运动:-0.7
B-T magnitude:8.472
V-T magnitude:7.489

目录:
适当名称   (Edit)
HD 1989HD 154107
TYCHO-2 2000TYC 7360-79-1
USNO-A2.0USNO-A2 0525-26246564
HIPHIP 83569

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