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spectrum HD 20566 - magn.: 7.90 - spectral class:  B3 Vne

Telescope: 0.28-m  f/10 (C11 Cassegrain)

Spectroscope: LHiResIII with 2400 l/mm grating - 35 µm slit

Calibration with internal Ar/ne

Calibration RMS: 0.021 A (lin)

Resolving Power: 13815 - slit 35 µm

Exposure: 3 x 1200 s

SNR: