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HD 47509


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Far-ultraviolet stellar photometry - A field in Monoceros
FUV photometry of stars in a field in Monoceros in the wavelength rangefrom 1230 to 1600 A has been carried out using data from anelectrographic Schmidt camera carried on a sounding rocket. Ultravioletmagnitudes were extracted for 602 objects in the field. Fifty-eightpercent were tentatively identified with visible stars using the SIMBADdata base while another 25 percent are blends of objects too closetogether to separate with our resolution. Eleven of the UV objectscoincide with parts of the star clusters NGC 2169, NGC 2244, and NGC2264 in which individual stars cannot be resolved. As in previousstudies, the majority of the identified ultraviolet sources areidentified with early-stars. However, there are a significant number forwhich no such identification was possible, and we suggest that many ofthese are nearby white dwarfs.

The distribution of stars and obscuring matter in a Monoceros field
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1972A&AS....7...35K&db_key=AST

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Gözlemler ve gökölçümü verileri

Takýmyýldýz:Tekboynuz
Sað Açýklýk:06h39m22.76s
Yükselim:+07°15'50.4"
Görünürdeki Parlaklýk:8.831
Uzaklýk:411.523 parsek
özdevim Sað Açýklýk:-0.6
özdevim Yükselim:-12.1
B-T magnitude:9.02
V-T magnitude:8.847

Kataloglar ve belirtme:
Özgün isimleri   (Edit)
HD 1989HD 47509
TYCHO-2 2000TYC 159-1894-1
USNO-A2.0USNO-A2 0900-03244088
HIPHIP 31838

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