Snowed in in London so did this mock - used a positive focal reducer before grating and ex-cine lens to image spectrum onto sensor so light through grating is...
Hi all, I teach all levels of astronomy here at a small college outside of Philadelphia, USA, and I recently became of the Star Analyser and so thought I would...
Hi Eric, While I have not had teaching experience with the Star Analyser, I do have some using experience. The great thing about the Star Analyser is that it...
Hi Eric, Welcome to the group. Yes there are some educational users around. (I have used it myself in teaching an adult education introductory astrophysics...
Hi Eric, I use sensitive video cameras (like the Mintron 12V1E-EX, aka Stellacam EX) with a C8 and f3.3 focal reducer for outreach. This setup can "see"...
... Mounting the Star Analyser after the focal reducer also works fine provided you do not go too low in FR.(and is physically easier to do with the typical...
Hi Nytecam, I expect you are well and truly snowed in now (luckily we have escaped the worst of it in this corner of the UK so far) but I wondered if you got...
Hello, I have been surprised to see snow falling down this morning in London. I'm at AstroFest (Ian King Imaging booth) showing our new echelle spectrograph...
Hi Robin, as my test spectrum image photos show, spectra with a grating after an f3.3 focal reducer are almost useless. Placing a focal reducer behind a...
Hi Richard, That's interesting. I have one of those inexpensive reducers (an ATIK) but have not explored large reductions as I cannot get beyond about a 0.6x...
Hi Robin, Mogg used to (may still) offer an extender to turn his f6 reducer to an f3. You are right, backfocus will become limiting. While I experimented with...
I just did a crude test of the focal length of one of my f0.5x Antares 1-1/4" focal reducers, ~75-80mm. Regards, Richard ... and ... focal ... of ... I ... and...
Hello mates ! Do you think that using a toUcam will limit the manitude less than 3 ? I'm thinking that I already have a spectrograph with a 250 lines/mm .So I...
Hi Alex, Please keep in mind that this group is for discussions about the Star Analyser and applications using it. To keep discussions on topic, more general...
Good to see you Olivier at Astrofest and here's my Youtube video http://www.youtube.com/watch?v=u2oVGMvf8jo in which you feature together with a general...
Hola amigos les ajunto el link de un espectro logrado de Eta Carinae. http://www.espacioprofundo.com.ar/foros/about8064.html Saludos Marcelo Rios Yahoo!...
Hi guys, my first post so be gentle.... I've recently had a lot of correspondence with Robin who has been extremely helpful in trying to get me some results...
Graham, I hope to be gentle... just pardon my "frenglish"... :-) visualSpec has two methods to selects the points of your spectrum with which it will calculate...
Hi Olivier, thanks for helping. Your English is certainly better than my French, It's probably better than my English too! It was nice to meet you at...
Hi Graham, Thanks to Olivier for stepping in with the explanation:-) I too find the point selection frustrating. You can get the arrow to appear from time to...
OK Robin, many thanks. I've been clicking and dragging for 5 minutes or so but I've yet to see a pointer (grin). Method 2) it is then. Just being picky but...
Hi Graham, When you select the line, Vspec calculates the centre of the line based on the data between the cursor boundaries. Depending on the shape of the...
Hi again Guys Lest some of you are thinking I'm some kind of idiot (which I still might be) I have found what may be the reason I'm having so many problems. ...
Hi Graham, There does seem to be something odd going on here. I tried the Betelgeuse luminance file you sent me earlier and it seemed to be working ok. I could...
Hi, I have a star analyzer and Meade LPI so I have been following this thread with great interest. I am an absolute beginner to this subject but I did try to...
"Curiouser and Curiouser" cried Alice ... We seem to have entered a world where the strange laws of VSpec apply. I have just downloaded the file and now it...
And just to add my two penneth, I managed to get the hand/pointer working by saving the LPI files as mono fits3p (Meade's proprietary format I think). Well,...
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