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Spectra HD206773  - mag.:6.93 - H-alpha detail

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

Spectroscope: L200 with 1800 l/mm grating

Calibration with internal Ar/ne

Calibration RMS: 0.001 A

Resolving Power: 10288

Exposure: 5 x 600s