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TYC 5692-1222-1


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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.

Walraven photometry of nearby southern OB associations
Homogeneous Walraven (VBLUW) photometry is presented for 5260 stars inthe regions of five nearby southern OB associations: Scorpio Centaurus(Sco OB2), Orion OB1, Canis Major OB1, Monoceros OB1, and Scutum OB2.Derived V and (B - V) in the Johnson system are included.

Discoveries on Southern Red Sensitive Objective-Prism Plates - Part Three - New Stars Having Hα in Emission
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1981A&AS...44..387M&db_key=AST

A survey of O and B stars in a region of Scutum
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Observation and Astrometry data

Constellation:たて座
Right ascension:18h40m44.66s
Declination:-07°58'24.1"
Apparent magnitude:10.182
Proper motion RA:-1.6
Proper motion Dec:-9.4
B-T magnitude:10.592
V-T magnitude:10.216

Catalogs and designations:
Proper Names   (Edit)
TYCHO-2 2000TYC 5692-1222-1
USNO-A2.0USNO-A2 0750-14058371
HIPHIP 91591

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