VILGEN photometry

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A combination of seven selected filters from the Vilnius and Geneva systems of photometry (hence VILGEN), used to distinguish peculiar and metal-poor stars. The filters used are U from the Geneva system; P from the Vilnius system; B1 (Geneva); Y (Vilnius); Z (Vilnius); V (Geneva or UBV); and S (Vilnius).

Subjects: Astronomy and Astrophysics.

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