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HD 80060


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UBVRI photometry of FKSZ stars. III
UBVRI photometry in the Kron-Cousins system is presented for 118 starsin the Catalogue of Fundamental Faint Stars (Zverev, 1957) in thedeclination zone between -60 and -90 degrees. The observations were madebetween September, 1984 and March, 1987 at the European SouthernObservatory at La Silla, Chile. Tables of the photometric data aregiven, including star number, V magnitude, spectral types, and (B-V),(U-B), (V-R), and (R-I) color indices.

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.

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Gözlemler ve gökölçümü verileri

Takýmyýldýz:Karina
Sað Açýklýk:09h14m22.74s
Yükselim:-65°03'14.2"
Görünürdeki Parlaklýk:7.031
Uzaklýk:161.29 parsek
özdevim Sað Açýklýk:-29.4
özdevim Yükselim:7.2
B-T magnitude:8.419
V-T magnitude:7.146

Kataloglar ve belirtme:
Özgün isimleri   (Edit)
HD 1989HD 80060
TYCHO-2 2000TYC 8948-1385-1
USNO-A2.0USNO-A2 0225-05559760
HIPHIP 45340

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