Hi Mike, I don't think that the fringes in your flats are caused by the protective glass plate in front of the CCD chip. The observed fringe period (30 nm)...
6276
Robin Leadbeater
niborl2000
Aug 3, 2009 4:57 pm
Hi Mike, Peter, I also wondered if these could be the waves in Kodak chip resonse but the waves in Peter's spectra seem at first glance to be a better fit to...
6277
Robin Leadbeater
niborl2000
Aug 3, 2009 5:07 pm
... From: "Robin Leadbeater" <robin@...> To: <spectro-l@yahoogroups.com> Sent: Monday, August 03, 2009 5:56 PM Subject: Re: [spectro-l]...
6278
Olivier Thizy
olivier.thizy
Aug 3, 2009 5:55 pm
Mike, Yes, a flat will remove both dust and the fringes if the spectrograph didn't move. But in practice, this is very hard to do and I always take neon ...
6279
Robin Leadbeater
niborl2000
Aug 4, 2009 4:05 pm
I see the ESO CAOS spectroscopy group have added an interesting new article to their website on 1st August covering fibre coupling for amateur spectrographs. ...
6280
Daniel DEFOURNEAU
daniel_defou...
Aug 5, 2009 6:33 pm
Bonjour, Fini les vacances! Doppler du soleil du 5/08/2009 Le bord bleu avance, le bord rouge recule Amitiés, Daniel No virus found in this outgoing message ...
6281
Daniel DEFOURNEAU
daniel_defou...
Aug 5, 2009 6:34 pm
Bonjour, Fini les vacances! Doppler du soleil du 5/08/2009 Le bord bleu avance, le bord rouge recule Amitiés, Daniel No virus found in this outgoing message ...
6282
Daniel DEFOURNEAU
daniel_defou...
Aug 5, 2009 6:34 pm
Bonjour, Fini les vacances! Doppler du soleil du 5/08/2009 Le bord bleu avance, le bord rouge recule Amitiés, Daniel No virus found in this outgoing message ...
6283
Daniel DEFOURNEAU
daniel_defou...
Aug 5, 2009 6:38 pm
No virus found in this outgoing message Checked by PC Tools AntiVirus (6.0.0.19 - 10.004.071). http://www.pctools.com/free-antivirus/...
6284
Jeff Hopkins
hposoft
Aug 6, 2009 12:47 pm
Hi Robin, I'm at the AAVSO IYA 2009 meeting in Chicago right now. I'm pushing spectroscopy. Regarding fiber optics. Back in my engineering days I did some work...
6285
Robin Leadbeater
niborl2000
Aug 6, 2009 1:15 pm
Hi Jeff, Something which is not included in my website description yet and it may be too late but if you are talking to citizensky members in Chicago about...
6286
ernst-pollmann@...
Aug 6, 2009 1:16 pm
"Jeff Hopkins" <phxjeff@...> schrieb: I'm at the AAVSO IYA 2009 meeting in Chicago right now. I'm pushing spectroscopy. .... hi Jeff, could you give at...
6287
Robin Leadbeater
niborl2000
Aug 6, 2009 1:34 pm
Hi Olivier, ... From: "Olivier Thizy" <Olivier.Thizy@...> To: <spectro-l@yahoogroups.com> Sent: Monday, August 03, 2009 4:50 PM Subject: Re:...
6288
Jeff Hopkins
hposoft
Aug 6, 2009 2:38 pm
Will do Ernst. Jeff ... Hopkins Phoenix Observatory Phoenix, Arizona Counting Photons www.hposoft.com/Astro/astro.html...
6289
jacques savard
suppjos
Aug 6, 2009 3:30 pm
this site can be good for revise our slit diffraction math maybe we miss something jack 47'N 71'W...
6290
ernst-pollmann@...
Aug 6, 2009 4:20 pm
Dear Colleagues! Beside the collaboration between AAVSO and "ASPA-active spectroscopy in the astronomy" regarding the LBV star P Cygni, fortunately there are a...
6291
ernst-pollmann@...
Aug 6, 2009 7:01 pm
Dear Colleagues! Because of the missing figures, the same mail again. ... Beside the collaboration between AAVSO and "ASPA-active spectroscopy in the...
6292
ernst-pollmann@...
Aug 6, 2009 7:12 pm
Is there someone able to explain, why it is so difficult to handle with attachments since some time. It´s really annoying.... Ernst ... ASPA -...
6293
Serge Montagnac
montagnacs
Aug 7, 2009 7:06 am
... Hi Jeff and Robin ... and the list, Just to remember everybody that you can use a really good Optics software for fiber use and refinements ... I speak...
6294
ernst-pollmann@...
Aug 7, 2009 8:46 am
The V brightness of P Cyg became quick fainter within the last few days (see attached plot) and we need urgently a measurement of the Halpha EW for...
6295
Serge Montagnac
montagnacs
Aug 7, 2009 11:56 am
I forgot to point these useful tutorials on coupling in Oslo ... ...
6296
astroasp@...
alainspang
Aug 7, 2009 12:32 pm
bonjour à tous, http://ooruri.kusastro.kyoto-u.ac.jp/pipermail/vsnet-alert/2009-August/002977.html RA = 18h 07m 08s DEC = -33d 46'.6 et V 7.78 le 06/08/2009...
6297
jacques savard
suppjos
Aug 7, 2009 2:47 pm
curious I have some interrogation and no email on http://www.sinopt.com to be send some my desing is partilur I used chaneway curve modify by flex mirror...
6298
Olivier Thizy
olivier.thizy
Aug 7, 2009 5:49 pm
Robin, The intensity of the fringe is somehow related to the quantity of light going through the slit; so yes there are some difference depending on the actual...
6299
Olivier Thizy
olivier.thizy
Aug 7, 2009 5:49 pm
Ernst, This is how Yahoo seems to manage pictures & attachment now. At the same time, you last post on P Cygni (great alert by the way...) included a picture...
Hello Olivier, I have been dividing by a line free star at similar elevation to clean up the eps Aur Ki 7699 line profiles. It has proved very effective at...
6302
Robin Leadbeater
niborl2000
Aug 7, 2009 10:03 pm
Ever since a few years ago when I used to hunt for exoplanet transits using a webcam I have kept an occasional eye on planet hunter Greg Laughlin's Oklo blog....
6303
Olivier Thizy
olivier.thizy
Aug 8, 2009 6:35 am
[en français plus loin...] /Hello, BASS2000 site is a great reference on the Sun in general and solar spectroscopy in particular. There are tons of...
6304
Olivier Thizy
olivier.thizy
Aug 8, 2009 7:40 am
Hello, I forgot the link to the educative page with the solar spectrum made by Olivier Garde with a Lhires III: ...
