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Broad-band photometry of selected southern ultraviolet-bright stars.
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| A survey of ultraviolet objects
An all-sky survey of ultraviolet objects is presented together with astatistical analysis that leads to the conclusion that there is asignificantly higher population of hot subdwarfs lying below themain-sequence than hitherto thought. The distribution of all ultravioletobjects, main sequence ultraviolet objects, and MK unclassifiedultraviolet objects are shown in galactic coordinates, and the absolutemagnitudes and color-color diagrams for these groups are presented.Scale heights are derived, giving values similar to planetary nebulaefor the hottest groups.
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Gözlemler ve gökölçümü verileri
| Takýmyýldýz: | Irmak |
| Sað Açýklýk: | 04h01m37.68s |
| Yükselim: | -13°49'29.6" |
| Görünürdeki Parlaklýk: | 9.752 |
| özdevim Sað Açýklýk: | 26.2 |
| özdevim Yükselim: | 50.6 |
| B-T magnitude: | 9.967 |
| V-T magnitude: | 9.77 |
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