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HD 81353


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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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Сазвежђа:Једра
Ректацензија:09h23m05.98s
Deклинација:-53°49'12.6"
Apparent магнитуда:6.817
Даљина:246.914 parsecs
Proper motion RA:-8.8
Proper motion Dec:7.5
B-T magnitude:8.121
V-T magnitude:6.925

Каталог и designations:
Proper имена   (Edit)
HD 1989HD 81353
TYCHO-2 2000TYC 8584-2655-1
USNO-A2.0USNO-A2 0300-06771398
HIPHIP 46017

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