From: "daffyddsant" <usenet@davidillig.com>

Date: April 23, 2011 10:48:13 AM MDT

To: Astro_IIDC@yahoogroups.com

Subject: Re: Spectroscopy


Silent other here. (Not really, as I was the one who started the thread on the macastronomer group.)


I know that you have access to Windows. I would suggest that you download RSpec (30-day fully-functional trial) and see what it does <http://www.rspec-astro.com/>. There is a very short overview video at <http://www.rspec-astro.com/videos/overview/overview.html>. Thee are sample files available. Among other things, it can rotate the star image and spectrum to horizontal. After rotating one can manipulate two horizontal bars to select the region of interest (the star and its spectrum) and eliminate as many other stars and spectra as possible. A very neat feature is its ability to accept live input from video cameras such as Imaging Source, webcams, etc, and average for best curve. This is also a focusing aid, as focusing on the star does not do the job; one has to somehow focus on the spectrum, but the spectrum has fuzzy edges. Thus, in RSpec, one focuses for the best looking curve.


Good luck! Make it an extra-cost add on. Maybe if you build it they will come.


--- In Astro_IIDC@yahoogroups.com, Milton Aupperle <milton@...> wrote:


Hi  Ralph, Darryl and silent others:


Thanks for the feedback....