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Spectra V357 Lac - HD 212044  - mag.: 7.24  - H-alpha detail

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

Spectroscope: LHiResIII with 2400 l/mm grating

Calibration with internal Ar/ne

Calibration RMS: 0.001 A

Resolving Power: 14286

Exposure: 2 x 1200s