02.02.2026 Commissioning an Inexpensive Off-The-Shelf Spectrograph for Radial-Velocity Studies

Neue Publikation erschienen in "Astronomical Notes"

Phasefolded radial velocity plot of GK Cep. Both components of the system are displayed, the main component with black circles and the companion with orange crosses.

We present a way to set up an inexpensive out of the shelf spectrograph at a local observatory. Stability and resolution of the spectrograph are high enough for radial velocity determination of binary stars or determination of stellar characteristics. Even some exoplanets might be detectable via the radial velocity method.

Lukas Stock, Andreas Schrimpf
Commissioning an Inexpensive Off-The-Shelf Spectrograph for Radial-Velocity Studies
Astronomical Notes,  347, e70067,  2026
DOI: 10.1002/asna.70067