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Sirius spectrum

  • Object: Sirius, HIP 32349
  • Spectral type: A1V
  • Telescope: 150/750 Newtonian, SkyWatcher
  • Camera: Imaging Source DMK 21
  • Spectroscope: Star Analyser
  • Date: 18.02.2010

Recorded spectrum

Here is a raw spectrum of Sirius recorded with DMK21:
sirius-raw-spec

Analyzed spectrum

Processed in VSPEC and calibrated on hydrogen lines the spectrum looks like this:
sirius-spectrum
Except hydrogen absorption lines there are atmospheric oxygen lines and some unknown bands at 705-715nm.
RkBlog

Astronomy and Astrophotography, 11 April 2010, Piotr Maliński

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