Hello Dominique, This looks strange. The agreement between you spectrum and the library spectrum does not look very good. Can you put the images used to...
FYI The general GEOS DB page of RR Lyr with all available O-C obs is available via: root GEOS TARTOT and GEOS DB access: http://rr-lyr.ast.obs-mip.fr/ GEOS DB:...
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the staranalyser group. File :...
staranalyser@yahoogro...
Sep 27, 2008 3:51 pm
1219
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the staranalyser group. File :...
staranalyser@yahoogro...
Sep 27, 2008 3:52 pm
1220
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the staranalyser group. File :...
staranalyser@yahoogro...
Sep 27, 2008 3:52 pm
1221
hello Robin, Wolfgang thanks for the comments, sorry for the late respons i send 4 images spc of altair as reference star: dispersion 15.95 Ä/px spc of RR...
Hello Dominique, It is surprising that your ATIK 2HS results were so poor. My home built version of the 2HS and a 200mm aperture worked very well. I was able...
At mag 14, this supernova should just be within range of a Star Analyser and an 8 inch scope or bigger from reasonably dark skies. (It is too far south for me)...
good evening, i used the spc of altair, taken with the Watec, and the prototype of the spc out the library of Vspec with division i found the data for the...
Hello h-g, Good to see the old quickcam is still working and producing good spectra :-) I have used visual spec and wavelength calibrated your spectrum using H...
Maybe a Sally question but.. Planning to take spectra in Ha of epsilon Aurigae in winter and next year. Question: The Ha filter, where to put it before or...
In my humble experience, doesn't matter. When placed infront, the grating will still diffract the light as normal, but obviously there's only the Ha available....
Hi h-g, Why use a filter? Eps Aurigae is very bright so you should not have a problem with sky background even with a slitless setup. The resolution of a ...
Hi Daniela, Ha is Hydrogen Alpha. The first line in the Balmer series at 6563 Angstrom. Many stars (including the sun) show this as an absorption line. Other...
Let me jump in here a bit. I'm sure Robin will have some say too. One of the most interesting areas of the spectrum of epsilon Aurigae (and many other stars)...
You are right. There is not much advantage in using the Star Analyser just on Ha compared with doing photometry with say a 5nm bandpass Ha filter ( The SA will...
Hi Robin, I suggest in addition to Stencel's web site people check the offical Epsilon Aurigae Campaign Web Site at http://www.hposoft.com/Campaign09.html Jeff...
OK now i understand better - thanks everybody. Yes I meant a narrow band 5-6nm bandpass as a better choice, as opposed to the nebular filter of 13nm and the...
Hi Robin and others, Some additional thoughts. CCD photometry of epsilon Aurigae is difficult. While not impossible, almost all the advantages of CCD...
Hi Robin, there may be utility of using an Ha filter ahead of the SA to do more precise Ha work? We discussed the ability to improve S/N in past posts as one...
