So I was cruising around on eBay a few weeks ago and stumbled across 100 line/mm gratings for $5.
I've always been interested in trying spectroscopy but at the moment I really can't afford to invest $300 into it, so I figured what the heck and I purchased one.
I received my grating cut it down and slipped it into an old 1.25" filter ring.
I purchased the book "Astronomical Spectroscopy for Amateurs" and it discusses software called "VSpec", but haven't really had a chance to dig into it yet.
I also found IRIS and ISIS, which both run on my mac under wine.
ISIS refuses to open my color fits files for some reason. IRIS seems to work but I have a steep learning curve to get through. I have not tried VSpec yet (Virtualbox).
The image of polaris was taken using a C5 using a ASI120MC just to test the grating.
Does this look like it will be useable? Probably a dumb question, but like I said I haven't had time to really start reading yet.
EDIT: After some reading it looks like the spectra is out of focus for starters.
Is anyone still using older programs like IRIS or VSpec?
Edited by Tom Stock, 05 December 2019 - 10:24 PM.