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HD 71269


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The ROSAT Wide Field Camera all-sky survey of extreme-ultraviolet sources. I - The Bright Source Catalogue
First comprehensive results from an initial processing of the ROSAT WideField Camera all-sky survey for cosmic sources of extreme-ultravioletradiation are presented. The reduction of the survey data has yielded acatalog of 383 relatively bright EUV sources, forming the WFC BrightSource Catalogue. Details of the EUV source positions and count ratesare given, as are optical identifications where known. It is found thatthe log N-log S distributions are unusually flat for the white dwarfstars, but almost Euclidean for the nearby main-sequence late-typestars. The sky distribution of identified white dwarfs is highlynonuniform, suggesting gross variations in the opacity of theinterstellar medium within about 100 pc.

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Gözlemler ve gökölçümü verileri

Takýmyýldýz:Pupa
Sað Açýklýk:08h25m12.72s
Yükselim:-34°23'51.1"
Görünürdeki Parlaklýk:8.943
Uzaklýk:331.126 parsek
özdevim Sað Açýklýk:-6.1
özdevim Yükselim:10
B-T magnitude:8.913
V-T magnitude:8.941

Kataloglar ve belirtme:
Özgün isimleri   (Edit)
HD 1989HD 71269
TYCHO-2 2000TYC 7143-618-1
USNO-A2.0USNO-A2 0525-08679352
HIPHIP 41271

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