Hi Martin, thanks for the photos. Your flat mirror mod is very clever. The ability to go from low res to high without changing the fiber is neat! If I ever do...
very exiting all these discussion only the budget stop me to buy all the echelle grating on the maket ken or richard do you have a disgram of echelle setup...
Jaques, No Kit as yet ;-) Richard has published lot's of data and photos of his echelle. I'm sure he'll be here soon to advise.... In the files area there are...
ok thank a lot for quick answer i pass all this in revue interrogation waht is the main caracteristic of a echelle grating the angle or so i work whit...
The real issue with the echelle seems to be the cost and availability (outside the US) of suitable reference lamps. Any solutions?? ... -- "Astronomical...
Hi Ken, the need for an echelle calibration lamp is no different than any standard spectrograph. If you use a neon lamp with your classical spectrograph, then...
Hello Ken, I use a ThAr-lamp, that costs about 300 €. But there is also no-cost solution: In chemical analytical Labs atomic absorption spectroscopy (AAS) is...
Brian, I'm trying to add a couple more kits to the batch....there has been tremendous response this time round... Your name is on the shortlist.... If there...
Ken, What would be the total for a kit and a neon lamp? Sent from my iPad ... Ken, What would be the total for a kit and a neon lamp? Sent from my iPad On May...
Brian, $950 for the Kit and $110 for the neon reference. Total $1060 ... -- "Astronomical Spectroscopy - The Final Frontier" - to boldly go where few amateurs...
I would like to express my sincere thanks to Ken for restoring my Spectra L200 to full working condition recently. I bought it 2nd hand from an online buying...
Phil, Thanks for the feedback.... As I said at the beginning, the Spectra-L200 Kit was developed to provide an introduction to "serious" slit spectroscopy at a...
Ok, that sound reasonable. I'm in for an L200 kit and a neon reference lamp. Please let me know what payments are do when. Thanks! Sent from my iPad ... Ok,...
http://www.astronomerstelegram.org/?read=4115 This looks like it was caught early so it could brighten considerably, perhaps up to mag 11 Cheers Robin...
Thanks. I want to get set up to beat these guys. Dick On Sat, May 19, 2012 at 2:44 PM, Robin Leadbeater ... -- Richard S Post 33 Fairbanks Rd Lexington, MA...
addition what append if we used a car mirror whit his night feture reflext at different angle do we have a kind of splitter?????????6 jack 47'n 71'W...
1- how much line per mm they do not said?6 2- what kind of setup littrow or so? 3 - how musch resolution they do not said?? they used a prism and grating...
Never heard of Dr Ken Elliot’s spectrographs until now ... apparently only recently available as I see, from the pdf file, that he has a March 2012 patent on...
Jacques, All the info is at http://www.elliott-instruments.co.uk/ccdspec.pdf and http://www.elliott-instruments.co.uk/ccdspec.html The linear dispersion is 640...
Not seen or used one but I know bit about it. It appears to be a copy of the Tragos so I am not sure what is patentable about it. It uses a 500l/mm grism...
Reported as bright as mag +12.9. I'm on it already:) Supernova 2012cg IN NGC 4424 = PSN J12271283+0925132 May 23, 2012 IAU Central Bureau Electronic Telegram...
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May 24, 2012 5:48 pm
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the astronomical_spectroscopy group. File...
A spectrum of the objet: http://www.astrosurf.com/buil/supernovae/2012/index.htm (see bottom of the page) 0.28-m telescope + LISA spectrograph Christian B ...
That is, spectra of stars; not necessarily stellar examples of spectra of stars..... I've reprocessed all of the stars I've taken spectra of and updated all of...
