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HD 201162


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Ýlgili Makaleler

The Spacelab-1 Very Wide Field Survey of UV-excess objects. IV. The performance of the instrument in combination with optical photometry as a means of identifying stars with peculiar properties.
UV (195 nm) and Stroemgren uvby photometry of a 110 square degree fieldat high southern galactic latitudes are analyzed through a comparison ofi) UV magnitudes for 57 stars of various types common to the publishedTD1 catalogue and the Very Wide Field Camera (VWFC); and ii) observedand theoretical two-colour diagrams. The higher sensitivity of the VWFC(=~0.5magnitude) and its more complete survey are exemplified by thedetection and UV measurement of a series of objects with moderateUV-excess in addition to detection of some very blue objects of variousnature down to fainter than 12th magnitude in the optical domain. Adeeper survey with a VWFC-type instrument could provide a completesample for studies of the group properties of faint blue stars. Duringthe uvby reductions it was found that the usual procedure of plottingresiduals as functions of declination, hour angle and airmass can be apowerful and diagnostic test of photometer rigidity.

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Gözlemler ve gökölçümü verileri

Takýmyýldýz:Kova
Sað Açýklýk:21h08m11.96s
Yükselim:-14°19'19.3"
Görünürdeki Parlaklýk:8.016
Uzaklýk:161.812 parsek
özdevim Sað Açýklýk:17
özdevim Yükselim:-9.7
B-T magnitude:8.321
V-T magnitude:8.042

Kataloglar ve belirtme:
Özgün isimleri
HD 1989HD 201162
TYCHO-2 2000TYC 5783-1202-1
USNO-A2.0USNO-A2 0750-20650255
HIPHIP 104340

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