"Jeff Hopkins" <phxjeff@...> schrieb: An interesting thought. The hydrogen alpha region is in the middle of the photometry R band. Perhaps using R band...
Hello, a nova has been discovered in Andromeda. Very faint for a Lhires III but you should try with a star Analyser! mag about 12.7 and the following precise...
5165
astroasp@...
alainspang
Sep 3, 2008 6:30 am
hi all, http://ooruri.kusastro.kyoto-u.ac.jp/pipermail/vsnet-alert/2008-September/002097.html il y a des semaines comme ça ... ;) alain...
5166
sylvain@...
sylvain_asso...
Sep 3, 2008 10:37 am
Bonjour, Pendant les RASSP nous avons tents de raliser la manip pour trouver les lments chimiques de l'atmosphre de Jupiter, avec un LHIRESIII en 300tr/mm, un...
Bonjour Bernard, Tu attaque fort avec un astéroide de magnitude 16.7 ! C'est bien, mais très challenging. Le big problème, c'est le fond de ciel. La trace ...
5169
Christian Buil
chbuil
Sep 3, 2008 11:07 pm
(english message follows) Bonjour à tous, J'ai le grand plaisir de vous donner le lien d'un petit clip vidéo que j'ai monté à partir de quelques scènes...
5170
James Edlin
wyoedlin
Sep 4, 2008 3:46 am
Hi everyone, It has been awhile since I emailed the group. I have been trying out the Star Analyzer 100 on a few quazars with not too much success. I am not...
5171
JP.Masviel
tourelles2001
Sep 4, 2008 6:43 am
Bonjour, J'ai réalisé un spectro très basse résolution à fente avec un StarAnalyser et deux objectifs photos: ...
5172
Ken Harrison
ken4optics
Sep 4, 2008 7:25 am
James, At least part of the answer is determining the camera responce curve and then using that to initially correct the spectra; second stage is then to ...
5173
Olivier Thizy
olivier_thizy
Sep 4, 2008 7:38 am
Hello, A nova has been reported in Scorpius and is bright enough for Lhires III spectrographs but can of course be done with Star Analyser to see evolution...
5174
Robin Leadbeater
niborl2000
Sep 4, 2008 10:29 am
Hello Jim, The processing is the same for slitless spectrographs as for slit spectrographs so you can essentially follow the same procedures used for the...
5175
Robin Leadbeater
niborl2000
Sep 4, 2008 10:36 am
Hi again Jim, Looking at the spectrum of Altair you attached, it seems you are not getting as well defined Balmer lines as you should be getting with the Star...
5176
Robin Leadbeater
niborl2000
Sep 4, 2008 10:48 am
Bonjour Jean_Pierre Quelle belle spectrographe! Je n'ai jamais attendu à voir le Star Analyser utilisés de manière élégante. Best Wishes Robin...
5177
jacques savard
suppjos
Sep 4, 2008 4:05 pm
est ce qu'une grosse fibre va donner le meme résultat jacques 47'N 71'o ... et ... et ... que...
5178
Bernard Christophe
bernardsat1944
Sep 4, 2008 7:06 pm
Bonjour Christian, Merci pour les conseils, j'avais pris cet astéroïde car il trainait par là. Avant de me lancer dans un petit spectro à fente je voulais...
5179
Christian Buil
chbuil
Sep 4, 2008 11:07 pm
Jean-Pierre, c'est une très bonne réalisation, qui montre bien comment faire évoluer l'usage du StarAnalyser ! Bien vu l'usage de la fente LhiresIII. Je...
5180
Robin Leadbeater
niborl2000
Sep 4, 2008 11:24 pm
I am on it now using the Star Analyser (The first clear night for weeks!) It looks about mag 14 now so the spectrum is visible but rather noisy. There is no...
5181
James Edlin
wyoedlin
Sep 5, 2008 3:19 am
I gave it my shot at imaging with Star Analyzer 100. The image below (60mins) shows the nova field and what I believe is new nova. Very faint. I can not see...
5182
Bernard Heathcote
bd_heathcote
Sep 5, 2008 5:27 am
Jim, Unfortunately your jpg image is only 8-bit and all signals above 256 ADU (most) are saturated. Do you have a 16 or 32 bit image? Bernard ... (60mins)...
5183
BD Heathcote
bd_heathcote
Sep 5, 2008 5:39 am
Please disregard my last message ... I was looking at the wrong spectra. If the one I'm now looking at is the correct one then I agree that very little is...
5184
JP.Masviel
tourelles2001
Sep 5, 2008 6:54 am
Bonjour Christian, Merci pour l'idée du filtre d'ordre. Je vais faire des essais. Jean-Pierre ... From: "Christian Buil" <christian.buil@...> To:...
5185
Robin Leadbeater
niborl2000
Sep 5, 2008 11:18 am
Hi Jim, Your image quality looks excellent. (wonderful tight round stars and the molecular lines in that cool star on the right are showing up well) Here is my...
5186
Robin Leadbeater
niborl2000
Sep 5, 2008 9:15 pm
... From: Robin Leadbeater To: spectro-l@yahoogroups.com Sent: Friday, September 05, 2008 12:18 PM Subject: Re: [spectro-l] Nova in Andromeda ... Here is the...
5187
Tom Buchanan
darkchairman
Sep 6, 2008 2:26 am
Bonjour Jean-Pierre, Great work on your interesting spectrograph! My spectrograph has a transmittance diffraction grating with 600 grooves/mm. The camera and...
5188
JP.Masviel
tourelles2001
Sep 6, 2008 9:21 am
Bonjour Tom, Thanks a lot for your information about Wratten filters. As my aim was mainly cometary spectrometry, I didn't give much attention to filters...
5189
BM
bmauclaire@...
Sep 6, 2008 12:13 pm
On Thu, 4 Sep 2008 01:07:33 +0200 ... Vraiment somptueux et pro facon saga Starwar avec la musique facon symphonique. Espiegle et leger, cette video nous...
5190
Robin Leadbeater
niborl2000
Sep 6, 2008 12:41 pm
Hi Tom, That is an interesting arrangement. Is the grating you use blazed? If so at what first order wavelength? How does the efficiency using the higher...
