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Table · dataset · 1998

Theta Vir and 109 Vir uvby photometry

Listed in IVOA Registry (Virtual Observatory)

Differential Stroemgren uvby photometric observations from the Four College Automated Photoelectric Telescope are used to examine the possible variability of the spectrophotometric standards {theta} Vir and 109 Vir.

Description

No evidence is found for variability within a season of observation. Small year to year differences are most likely due to unaccounted for extinction changes.

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Astronomical sciences 68%
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