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spectrum  25 Ori - HD 35439 - magn: 4.88

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: 0.117 A (lin)

Resolving Power: 11939 - slit 32 µm

Exposure: 4 x 600 s

SNR: