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Strömvil photometry: peculiar stars and anomalous reddening

Possibilities of the Strömvil photometric system in identifying peculiar stars of various types are reviewed. The system can identify in the presence of interstellar reddening the following types of peculiar stars: F -G-K-M subdwarfs, G-K-M metal-deficient giants, cool carbon, barium and zirconium stars, chemically peculiar Β and A stars, emission-line stars (Be, Ae/Be, WR, Τ Tauri, etc.), white dwarfs, a fraction of horizontal-branch stars and many types of unresolved binaries. Also, the system can identify stars affected by anomalous interstellar reddening and classify them correctly.