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HD 70195


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Einstein Observatory magnitude-limited X-ray survey of late-type giant and supergiant stars
Results are presented of an extensive X-ray survey of 380 giant andsupergiant stars of spectral types from F to M, carried out with theEinstein Observatory. It was found that the observed F giants orsubgiants (slightly evolved stars with a mass M less than about 2 solarmasses) are X-ray emitters at the same level of main-sequence stars ofsimilar spectral type. The G giants show a range of emissions more than3 orders of magnitude wide; some single G giants exist with X-rayluminosities comparable to RS CVn systems, while some nearby large Ggiants have upper limits on the X-ray emission below typical solarvalues. The K giants have an observed X-ray emission level significantlylower than F and F giants. None of the 29 M giants were detected, exceptfor one spectroscopic binary.

Photoelectric photometry of late type stars in the direction opposed to galactic rotation
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1974A&AS...16..269G&db_key=AST

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观测天体数据

星座:船尾座
右阿森松:08h18m53.72s
赤纬:-42°31'36.3"
视星:7.088
距离:204.499 天文距离
右阿森松适当运动:-6.5
赤纬适当运动:1.2
B-T magnitude:8.304
V-T magnitude:7.189

目录:
适当名称
HD 1989HD 70195
TYCHO-2 2000TYC 7668-509-1
USNO-A2.0USNO-A2 0450-06508594
HIPHIP 40735

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