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TYC 1464-113-1


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Four-colour and H-beta photometry of blue stars selected from a balloon-ultraviolet survey and other sources
New uvby and/or H-beta photometry is obtained at the Chiranhigh-altitude outstation for 105 stars. Certain of the program stars areselected from a comparison of the SCAP 2000 balloon-ultraviolet skysurvey of the Laboratoire d'Astronomie Spatiale with the correspondingblue and red prints of the Palomar Observatory sky survey. Only a smallportion of these stars turn out to be B stars, whereas, the rest of thestars, which are selected from a variety of other sources, are mostly Bstars and if of normal luminosity are in many cases many Population Iscale heights from the galactic plane. It is shown that theidentification of B stars is practicable only at a good observing siteand that if H-beta photometry is also obtained, sdOB, sdB, and hothorizontal branch B stars can be distinguished from normal stars bytheir position in the beta/c(0) diagram.

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Osservazione e dati astrometrici

Costellazione:Chioma di Berenice
Ascensione retta:13h25m57.12s
Declinazione:+22°05'10.6"
Magnitudine apparente:10.745
Moto proprio RA:-8.8
Moto proprio Dec:-19.6
B-T magnitude:10.786
V-T magnitude:10.749

Cataloghi e designazioni:
Nomi esatti
TYCHO-2 2000TYC 1464-113-1
USNO-A2.0USNO-A2 1050-06923326
HIPHIP 65527

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