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spectro-l · Astronomical Amateur Spectroscopy / Spectroscopie Amateur en Astronomie

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  • Members: 442
  • Category: Amateur
  • Founded: May 14, 2003
  • Language: English
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Messages 5600 - 5629 of 12722   Oldest  |  < Older  |  Newer >  |  Newest
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5600 Christian Buil
chbuil Offline Send Email
Dec 4, 2008
9:05 pm
Les présentations sur la spectro faites aux Rencontres du Ciel et de l'Espace 2008 sont disponibles en bas de la page : ...
5601 BD Heathcote
bd_heathcote Offline Send Email
Dec 4, 2008
9:52 pm
Christian, Thank you for the link to some very interesting presentations, not only on spectroscopy, and congratulations to all the presenters. Bernard ... ...
5602 Jacques Savard
suppjos Offline Send Email
Dec 5, 2008
3:25 pm
addition from lunar observation LCROSS ((It looks like NASA scientists will be going forward with their previously-announced plan to take images this weekend...
5603 Bernard Heathcote
bd_heathcote Offline Send Email
Dec 5, 2008
11:22 pm
Until now I have avoided the need to splice/join two or more spectra but recently, to monitor nova development over a 3000A range, I am faced with that task....
5604 Jose Ribeiro
zerib57 Offline Send Email
Dec 5, 2008
11:49 pm
Greetings Bernard, I use Vspec to join spectra. After wavelength calibration one can merge spectra using the "join" function. Best, Jose ... From: Bernard...
5605 Ken Harrison
ken4optics Offline Send Email
Dec 6, 2008
8:38 am
Bernard, I've occasionally used Registax to align spectra, but I agree the Vspec "join" is better! 2008/12/5 Bernard Heathcote <bbh_pacific@...>...
5606 Jean-Baptiste BUTET
jb_butet Offline Send Email
Dec 8, 2008
6:37 pm
Hi all :) Some of my students need a Betelgeuse and Rigel spectrum. basically to get surface temperature And some basics components. (not need a High...
5607 BM
bmauclaire@... Send Email
Dec 8, 2008
8:09 pm
On Mon, 8 Dec 2008 19:37:27 +0100 ... Here are Betelgeuse and BEllatrix spectra. All serie is available at: ...
5608 Tom Buchanan
darkchairman Offline Send Email
Dec 8, 2008
9:09 pm
Hi Jean-Baptiste, I have film spectra of Betelgeuse and Rigel, resolution from 1300 to 2700. They show some basic components, but are not corrected to show...
5609 Jean-Baptiste BUTET
jb_butet Offline Send Email
Dec 9, 2008
6:08 am
Hi :) 2008/12/8 Tom Buchanan <tombuchan@...> ... I you could do this, yes. I should need another for spectrophotometrics, but ours could help them in...
5610 Eric SARRAZIN
e_sarrazin Offline Send Email
Dec 9, 2008
9:42 am
Jean-Baptiste, I did that "TP" with my students in class of "Seconde" May be that link might help you. http://e.sarrazin.free.fr/astro-alpes/entree.htm and...
5611 Eric SARRAZIN
e_sarrazin Offline Send Email
Dec 9, 2008
1:14 pm
Just a few more words. That "TP" was done using Vspec in order to calibrate spectras as well as to determine the photosphere's temperature (betelgeuse and...
5612 alexandrosfilothodoros
alexandrosfi... Offline Send Email
Dec 9, 2008
7:42 pm
Hello ! That's my first post ! I am waiting for the scope to cool off a bit more and Orion to get higher in the sky . If everything goes as planned I can send...
5613 Bernard Heathcote
bd_heathcote Offline Send Email
Dec 10, 2008
1:01 am
Thanks Ken and Jose. I have just tried using Vspec (the latest version) to JOIN two overlapping spectra from a southern nova I am following. When I try to do...
5614 Bernard Heathcote
bd_heathcote Offline Send Email
Dec 10, 2008
1:08 am
I have uploaded the two spc files I am having problems joining into the folder "Join files' in the Files folder. Any help with working out how to join/splice...
5615 Ken Harrison
ken4optics Offline Send Email
Dec 10, 2008
6:20 am
Bernard, Just tried to open your files, but my V3.5.1 VSpec won't recognise them as .spc??? Can you double check and reconfirm they are OK?? If you're...
5616 bbh_pacific
bd_heathcote Offline Send Email
Dec 10, 2008
7:24 am
Ken, Hmmm ... I created the spc files using the latest Vspec (3.6.1). I will have to wait until I'm back in Melbourne (tomorrow) to check if I'm able to read...
5617 valerie.desnoux
desnova Offline Send Email
Dec 10, 2008
7:32 am
Hi If you download from the Yahoo group, files will be saved with .p7b extension - if you make sure you save them forcing the .spc extension they will open...
5618 bbh_pacific
bd_heathcote Offline Send Email
Dec 10, 2008
8:10 am
Valerie, Thank you for the spc/p7b extension explanation, and I look forward to a solution to the 'join' problem. Bernard ... From: valerie.desnoux To:...
5619 BM
bmauclaire@... Send Email
Dec 10, 2008
11:00 am
On Wed, 10 Dec 2008 21:29:38 +1100 ... Just export your spc file to FIT format, not systematicly specific to bess. FIT is the file format for astronomye that...
5620 bbh_pacific
bd_heathcote Offline Send Email
Dec 10, 2008
11:21 am
Benji, Thank you for your help. I am away from home until tomorrow, so cannot check/test what you have done. I will look into the FIT format problem. Yes, I...
5621 Tom Buchanan
darkchairman Offline Send Email
Dec 11, 2008
4:02 am
Hi JB, I am sorry that I can not send you the spectra. My scanner quit working. Tom Buchanan ... From: Jean-Baptiste BUTET To: spectro-l@yahoogroups.com Sent:...
5622 Bernard Heathcote
bd_heathcote Offline Send Email
Dec 11, 2008
12:40 pm
One of the main problems I have found with making overlapping spectrum 'windows' is that every time the grating angle is changed a new flat field is required....
5623 Robin Leadbeater
niborl2000 Offline Send Email
Dec 11, 2008
2:05 pm
Hi Bernard, Unless you are particularly interested in the continuum, I would suggest forgetting the "standard star" and just normalising your spectra using a...
5624 Robin Leadbeater
niborl2000 Offline Send Email
Dec 11, 2008
2:58 pm
Hi all, The discussion I had recently on the German VdS spectroscopy group with two of the professionals there might be of interest here too (attached) It...
5625 valerie.desnoux
desnova Offline Send Email
Dec 11, 2008
10:04 pm
Hi I found the issue on the vspec code. It is regression due to the new function "normalisation to 1" which does create anymore a serie. Until I pusblish a new...
5626 valerie.desnoux
desnova Offline Send Email
Dec 11, 2008
10:11 pm
oops, I forgot to mention one step, before you move the intensity series into the norm series, make sure you normalized them. (click on the normalized button...
5627 Jose Ribeiro
zerib57 Offline Send Email
Dec 11, 2008
10:36 pm
That's magic!! I don't understand the procedure, but really works!! In attachment the joined spectrum of Bernard. Cheers, Jose ... From: valerie.desnoux To:...
5628 BD Heathcote
bd_heathcote Offline Send Email
Dec 11, 2008
11:56 pm
Jose, Valerie, Yes, that is 'magic' .... now I will have to see if I can reproduce it, and also join the 'blue' end spectrum to the mid and red. Thanks, ...
5629 Bernard Heathcote
bd_heathcote Offline Send Email
Dec 12, 2008
1:05 am
Robin, Your long VdS exchange makes for very interesting reading, but in the end I have no clearer idea as to the 'correct' method to be used for spectrum...
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