Torsten, WR 138 - Gray & Corbally p445, show strong emission line heII at 4686, the NIII at 4634 is very weak. Their spectrums only go to 600nm so no info...
Hi Torsten Very nice spectra, thanks for sharing. I'm new to this, so could you describe how you setup and take frames of the spectra using the DMK. I also...
See here for more images http://www.supernovae.net/ Robin ... From: "Christian Buil" <christian.buil@...> To: <spectro-l@yahoogroups.com> Sent: Tuesday,...
Hi Robin, the description suggests that he is working at f10? A f3.3 focal reducer after the GRISM would let him go ~2 magnitudes deeper, same for binning....
I realize that what I said isn't true if skyfog limited. I wonder if it would still be possible to do a useful spectrum if a well-characterized light pollution...
For your information, an excellent web page (in french at the moment) from Christian Buil on the Star Analyser and some useful tricks! Cordialement, -- Olivier...
Yes, a very good article. There is nothing there I would disagree with. Robin ... From: Olivier Thizy To: staranalyser@yahoogroups.com Sent: Sunday, October...
Hi Olivier, notice that Christian uses the grating before a focal reducer to have the grating in the greatest f-ratio light. I have found much better GRISM...
Hello all, my first post here! I have a Star Analyser diffraction grating, and beyond that very little gear - a bottom-of-the-range astronomical webcam and a...
Hi All I want to say hi to all existing members and want to warn you all that I am at the very bottom of this particular learning curve - so I am likely to be...
Welcome! This is a very exciting field of endeavor but it also has a steep learning curve. I have made it to being able to slice and display the spectra but am...
Hello list, although disturbed by high clouds and damp air, my last evenings P Cyg spectrum benefited from some reasonable seeing. Consequently I was able to...
Your wish is my command Nytecam! The following night I imaged M42 and added it to the composite. This is about as far as I go for the minute. I'm new to...
Blazar 3C66A is curently reported brighter than usual at Vmag 13.8 (See AAVSO alert below) It is also well placed for northern hemisphere observers. This...
Today I bolted together a program that displays real-time stellar profiles from a webcam. Why? Because I thought it would be exciting to see a profile as it...
Hello all, For your information regarding Star Analyser efficiency... Cordialement, -- Olivier Thizy Shelyak Instruments Address: Les Roussets, 38420 Revel,...
maybe I have to put copyright on before neximage try to get it jack 47'N 71'W ... From: Robin Leadbeater To: spectro-l@yahoogroups.com Sent: Friday, November...
This 'real time spectrum profile' idea is not new as this function has been available in Maxim DL (View/Graph Window) for years ... I've used it for as long as...
Nice and bright at mag 8.5 so an easy target for the Star Analyser. Yours could be the spectrum that confirms it! Robin ... From: "astroasp" <astroasp@...>...
Congratulations François, I do not have access to IAU circulars it but according to the latest AAVSO alert on this object you are named in IAU Circular #9093...
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