Versatile Low Resolution Spectrograph on a C5 Part 2
The Versatile Low Resolution Spectrograph is designed to be used with a Celestron C5 or C8 Schmidt-Cassegrain telescope operating at f/10.
The Versatile Low Resolution Spectrograph uses
- 25 micron fixed slit that can be rotated.
- 25 mm diameter, f/10, 250mm focal length collimation lens.
- Paton Hawksley Star Analyser 100 (SA100) grating that can be rotated.
The SA100 can be replaced with the Rainbow Optics (RO200) grating or the Rigel Systems RS-Spectroscope.
The output of the grating is viewed with a small telescope for visual use or different types of cameras are used to take images of the spectrum.
The cameras used are
- Nikon D70 DSLR with 180mmED f/2.8 lens.
- Sony Handycam HDR-CX160 video camera.
- QSI532 CCD camera with a 100mm lens that can be rotated.
- Meade Deep Sky Imager III™ (DSI Pro III) camera with Nikon 50mm f/1.4 lens.
The below photos were taken November 27, 2011 showing the Versatile Low Resolution Spectrograph mounted on a Celestron C5 during bench testing.
This configuration was use on a Mach1 mount for star testing.
© 1998-2012 David Haworth
