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HD 116374


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An Einstein Observatory SAO-based catalog of B-type stars
About 4000 X-ray images obtained with the Einstein Observatory are usedto measure the 0.16-4.0 keV emission from 1545 B-type SAO stars fallingin the about 10 percent of the sky surveyed with the IPC. Seventy-fourdetected X-ray sources with B-type stars are identified, and it isestimated that no more than 15 can be misidentified. Upper limits to theX-ray emission of the remaining stars are presented. In addition tosummarizing the X-ray measurements and giving other relevant opticaldata, the present extensive catalog discusses the reduction process andanalyzes selection effects associated with both SAO catalog completenessand IPC target selection procedures. It is concluded that X-rayemission, at the level of Lx not less than 10 exp 30 ergs/s, is quitecommon in B stars of early spectral types (B0-B3), regardless ofluminosity class, but that emission, at the same level, becomes lesscommon, or nonexistent, in later B-type stars.

A spectral survey of the southern Milky Way 1 : general description and catalogue 1 (l=306 -318 degrees).
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1974A&AS...16..445S&db_key=AST

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Observation and Astrometry data

Constellation:Centaurus
Right ascension:13h24m45.06s
Declination:-62°21'21.8"
Apparent magnitude:9.028
Proper motion RA:-10.9
Proper motion Dec:1.5
B-T magnitude:9.255
V-T magnitude:9.047

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 116374
TYCHO-2 2000TYC 8994-1425-1
USNO-A2.0USNO-A2 0225-16836284
HIPHIP 65444

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