staranalyser : Messages : 1025-1054 of 1651

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1025	http://monquebec2008.sympatico.msn.ca/MonQuebec2008/ <http://monquebec2008.sympatico.msn.ca/MonQuebec2008/> ...	Jacques Savard suppjos	Jan 1, 2008 6:05 pm
1026	... wrote: Try: http://en.wikipedia.org/wiki/Spectral_classification...	jwarnerr	Jan 2, 2008 5:03 am
1027	Started new thread as the original got 'hihacked'! Here's tonight lo-res field spectrogram and field shot without Rainbow grating of Nova Vul 2007 #2 [=V457...	nytecam	Jan 2, 2008 8:14 pm
1028	Sorry for the thread typo [thanks Robin] that should read V459 Vul - here's a negative field spectrogram of M27 field in twilight near the nova at ...	nytecam	Jan 3, 2008 5:07 pm
1029	curious question maybe I try to find a used STAR ANALYSER for sale somwhere in north america or in canada certainly a very rare equipment but If I do not...	Jacques Savard suppjos	Jan 7, 2008 5:11 pm
1030	Hi Jacques, you can buy a new one from the supplier and have it in 10 days or less. Now that the Canadian dollar is more valuable than the US dollar, you can...	ssb73q	Jan 7, 2008 7:20 pm
1031	... And in October, I suggested to Adirondack Video Astronomy that they distribute the SA, which I would then purchase from them. their Jim Barot emailed me...	Tom Field tfield98	Jan 9, 2008 1:21 pm
1032	I try the same thing whit LA maison d'Astronomie in montreal and they said not interesting maybe I start my store now jack 47'N 71'W...	Jacques Savard suppjos	Jan 9, 2008 4:08 pm
1033	Hi everyone, First I hope 2008 is a good year for everyone! I have added a couple of images to the User folders/MarkD area. I imaged EZ CMa, (WR-6) recently....	Mark Dawes mrk_dws	Jan 12, 2008 11:07 am
1034	I'm looking for a filter flatfield about SA100 Reference please Best regards Je cherche un filtre pour la P.L.U du SA 100 car je crois avoir vu �a quelque...	duvalpierre513	Jan 17, 2008 4:29 pm
1035	Hello Pierre, I too would be interested in a good method to make a flat field for spectrographs without a slit like the Star Analyser. I asked Christian Buil...	staranalyser	Jan 17, 2008 6:00 pm
1036	maybe a haft of ping pong ball could do the job very well I thing about the photometer of the old day whit white dome for direct metering jack 47'N 71'W I'm...	jacques savard suppjos	Jan 17, 2008 6:02 pm
1037	Hi Jaques, Making a flat field is the easy part (For the LHIRES spectrograph I use a T shirt over the end of the scope and point a Halogen lamp at it) The...	staranalyser	Jan 17, 2008 7:27 pm
1038	Bonjour � tous Est il vraiment necessaire de r�aliser un Flat avec le S.A 100? Cordialement.........Pierre Hello the list Is there really necessarily to...	duvalpierre513	Jan 20, 2008 2:51 pm
1039	Hello Pierre, It depends how accurate you need the results. For best accuracy we should use a flat to correct for dirt on the sensor and vignetting of the...	staranalyser	Jan 21, 2008 8:54 pm
1040	Hi Pierre, Everyone, I have just checked with Ernst Pollman of the VdS spectroscopy group. http://www.stsci.de/fg/index_e.htm He uses a slitless spectrograph...	staranalyser	Jan 22, 2008 1:43 pm
1041	Pierre, tu as écris: /Bonjour à tous Est il vraiment necessaire de réaliser un Flat avec le S.A 100? Cordialement.........Pierre / Pas vraiment, sauf si tu...	Olivier Thizy olivier_thizy	Jan 22, 2008 2:57 pm
1042	... de ... bien ... et ton ... exposant le ... sur le ... pour ne ... information. ... est ... de ... bien ... et ton ... Bonjour Olivier Qu'entends tu...	duvalpierre513	Jan 25, 2008 3:19 pm
1043	Pierre, La lumi�re de ta cible passe par le "filtre" de l'atmosph�re, de ton t�lescope, de ton r�seau, et aussi apr�s dispersion de ton capteur. Si tu...	Olivier Thizy olivier_thizy	Jan 25, 2008 4:17 pm
1044	This effect was pointed out by Olivier Thizy on the spectro-ml group. Each pixel in a colour camera is sensitive to a particular colour (R,G,B) and they are...	staranalyser	Feb 14, 2008 1:51 pm
1045	Bonjour � tous Comme pour le Lhires 3 et le Bar�ges nous utilisons une lampe de calibration au n�on. Je suppose que pour le SA 100 , il en est de m�me. ...	duvalpierre513	Feb 17, 2008 4:03 pm
1046	Pierre, En très basse résolution comme pour le SA100, on utilise plutôt une étoile de type A comme référence de calibration (et de réponse instrumentale...	Olivier Thizy olivier_thizy	Feb 17, 2008 5:13 pm
1047	Dans un e-mail dat� du 03/10/2007 13:44:39 Paris, Madrid (heure d'�t�), lopezvilla2000@... a �crit : Mat�riel C8 + Canon 350D non d�filtr� (800...	duvalpierre513	Feb 22, 2008 2:32 pm
1048	Bonjour � tous..........Hi all Je ne comprends pas comment avec une dispersion de 5.87 A/pixel (Star Analyser spectrograph christian buil) on peut balayer...	duvalpierre513	Feb 22, 2008 3:02 pm
1049	Pierre, La dispersion donne la taille du pixel, c'est-à-dire la taille du segment en longueur d'onde sur ton capteur. Attention à ne pas confondre avec la...	Olivier Thizy olivier_thizy	Feb 22, 2008 4:33 pm
1050	Bonjour Pierre, To see the whole spectrum you need to put the SA closer to the CCD. For your camera the correct distance is 30-75mm. This will give you good...	staranalyser	Feb 22, 2008 5:45 pm
1051	... you ... ATK1, etc ... etc ... OK ET SI J'UTILISE UN REDUCTEUR DE FOCALE,QUELS SONT LES AVANTAGES AUTRES QUE VISUELS,CAR J'AI VU QUE C.BUIL L'UTILISAIT? ...	duvalpierre513	Feb 24, 2008 2:54 pm
1052	Bonjour, le réducteur de focale permet d'optimiser la résolution. Il est en effet conseillé sur un SCT à f/10 d'utiliser un réducteur f/6.3 par exemple. ...	Olivier Thizy olivier_thizy	Feb 24, 2008 5:20 pm
1053	... effet ... exemple. ... AVANTAGES ... Il n'est pas n�cessaire, mais si votre t�lescope est f10 ou plus alors c'est une bonne id�e d'utiliser un...	staranalyser	Feb 24, 2008 7:22 pm
1054	Ed has an Edmund 4deg 25mm diam prism for sale, 15GBP, he can be contacted: EdHarriman@... Would be great for a "grism" on a 100 lpm grating, and...	ken4optics	Feb 26, 2008 8:26 pm

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