AAS –  Astronomical Association of Susa, Italy: since 1973 continuously performes astronomical research,
publishes Susa Valley (Turin area) local ephemerides and organizes star parties and public conferences.
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AAS - Gino Zanella - M42 con NGC 1977 in Orione - Somma di 27 immagini da 240sec + 11 da 30sec. + 15 da 10sec. a 1600 iso + bias, dark e flat - Canon EOS1300D modificata super uv-ir cut + filtro IDAS lps d1 + newton d:150 f:750 su HEQ5 Synscan - Guida QHY5L-IIm su TS 60/240. Elaborazione PixInsight e Photoshop cs5.
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