Long slit spectrometer is based on a 600 lines/mm grating blazed at 5000 Å, covering 4340-8970 Å spectral range
with a typical spectral resolution is R=1200*.
First and second orders of the grating are split with a BK7 wedge prism with a 11° vertex angle.
A Argon hollow cathode lamp is used for wavelenght calibration.
* with the popular KAF8300 CCD chip (18x13.5mm).
False colors spectrum of Nova Cyg 2014 (above) and false colors spectrum of the twilight sky (below) recorded with a SBIG ST-10 CCD camera.
Wedge prism guarantees no overlapping between the first and the second orders of the grating.