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HD 64121


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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.

Equivalent widths of the K line
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1956MNRAS.116..277D&db_key=AST

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观测天体数据

星座:船底座
右阿森松:07h49m27.64s
赤纬:-54°48'44.2"
视星:7.437
距离:133.333 天文距离
右阿森松适当运动:-3.4
赤纬适当运动:-75.3
B-T magnitude:8.543
V-T magnitude:7.529

目录:
适当名称
HD 1989HD 64121
TYCHO-2 2000TYC 8557-887-1
USNO-A2.0USNO-A2 0300-03337196
HIPHIP 38181

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