Tue, 01/28/2014 - 17:46
A new Star Analyser (SA-200) low-resolution specrograph is now available. It is similar to the SA-100, but is designed to be used in a filter wheel. The design allows closer mounting of the grating to the camera and special adapters are available for filter wheel mounting. While the SA-200 has twice the lines per mm of the SA-100, the design is such that the resolution is not quite as good as the SA-100 with the primary goal being to allow its use in a filter wheel. The cost is $209 for the SA-200 and $23 for the mounting kit. See http://www.rspec-astro.com/star-analyser-200
Jeff
HPO 187283
Hopkins Phoenix Observatory
If anyone is interested, I have posted on my website some information on the development behind the new Star Analyser 200 model and some results using the pre-production prototype in various configurations.
http://www.threehillsobservatory.co.uk/astro/spectroscopy_16.htm
I also used it to record a spectrum of SN2014J in m82
http://www.spectro-aras.com/forum/download/file.php?id=1370
Taken 2 days after the discovery, though this is a stack of 120x15 sec, the distinguishing features of a type 1a supernova were obvious even in a single 15 sec exposure. The grating was mounted just 26mm from the camera sensor
Cheers
Robin
www.threehillsobservatory.co.uk