Bonjour à tous Hier soir, de retour de vacances près de l'OHP (une semaine de mauvais temps astro, si si !), j'ai de nouveau tenté depuis le balcon T_Pyx. ...
Wow! you are really beating the noise now with the latest spectrum. You are rewriting the rule book again Christian ;-) A spectrum by Roland Baehr using a...
After almost 2 years in eclipse, epsilon Aurigae is currently returning to full brightness. Newsletter 22 has just been published and as usual includes details...
il faudrait entre en contact avec Terry Bohlsen Armidale NSW Australia il pourrait peut etre jacques 47"n 71"w Bonjour à tous Hier soir, de retour de vacances...
Thanks also to LISA spectrograph for very faint object observation (supernovae, ...): usage of an entrance slit is really at the origin of success (because...
Hi Christian, Very interesting. I picked up yesterday my LISA spectrograph from a friend who was so kind to bring it over from USA to Mexico. I hope to have...
Hi, Thanks for that very informative page where one can observe the evolution of the spectrum. After seeing your spectrum of 29.820/04/2011 I reworked my last...
Dear All I finally had a clear night last night and was able to take a much longer run of exposures if T Pyx. I took 300sec 8 x 15 with my L200 spectrograph....
Hi all, An update of ARAS page devoted to Delta Sco radial velocity campaign: http://astrosurf.com/aras/surveys/deltasco/dsco.htm Note the very good similarity...
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Ernst Pollmann
ernst-pollmann@...
May 3, 2011 7:07 am
That's great, Christian ! Your continuous information about the ongoing process and the RV observation results of He4686 enables in this way the comparison of...
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Ernst Pollmann
ernst-pollmann@...
May 3, 2011 7:35 am
... the web adress in my last email was wrong: http://astrospectroscopy.de/delScocampaign.htm Ernst Pollmann ... Active Spectroscopy in Astronomy ...
Hi Rainer, The SA spectrum seem to be excellent! A very good job... and also an important scientific result because your spectrum precise the date of Fe lines...
Hi CHristian, Thanks for the comments. Today afternoon I will try to make a fits file in VSpec and send it to you so you can check it. I will also rework the...
Hi, Can someone please offer an opinion regarding the Star Analyzer? I plan to put the Star Analyser on the nose piece of an SBIG ST7. It will have a 5...
Keith, 680nm seems a little bit short to cut IR but in any case, you can still do a lot of spectroscopy with the ST7 even with the L filter. I suspect you will...
Keith, What would the distance be, between the grating and the CCD chip? Which telescope are you using? I found using filter wheels that there's a bit of...
A useful trick to get the spectrum horizontal with the camera off the scope is to look at the CCD chip from the telescope end through the Star Analyser....
Thank you all for your replies. I like your idea, Olivier, of trying the SA first with no filter and then with each filter. That should prove interesting. The...
Hi Christian, I hope you got my e-mail explaining my problems for sending you an adecuate profile in fit format :-) I hope Valerie can check the problmem I...
Hi, Sorry I made a mistake. The date is local time so please read the date +1day eg. 19,21,22 and 24 all approximately between 02:00am and 03:00am. If we can...
Dear All, Thanks to look my report related with the use of microscope glass as beam splitter (96% transmission and 4% reflection). The "on field" test has been...
Marco, Interesting observation. Have you tried with and without slit to see the ratio of light loss through the guiding+slit system? Cordialement, Olivier...
Olivier, thanks to read. On May 3rd I made the same observation without slit (totally open). So: March 3rd - star on slit totally open: 14 adu and 3.3 adu on H...
Southwest Astrophysics Group Get Together While this meeting is aimed mainly at local people, everyone is welcome no matter where you are located. On Saturday...
Hello Marco, excellent results, you make fast progress. I used a similar method with a partial reflector for guiding on a 50 micron fiber with my echelle some...
Bonjour à tous, Voici certainement une campagne très intéressante mais le principal problème est la calibration aux alentours de la raie HeII avec un...
Eric, Yes, getting a neon calibration spectra around 4686A is difficult ... but can be done. Attached is a long neon exposure (2400s). I obtained a good...
Martin, thanks for looking. I hope everything is doing well for you at your observatory at Falera! Yes you are right it's a 92% transmission and 8% reflection....
Dear All, I wonder if xi Ser (HIP 86263) DE -15°, m=3.50 and xi Sco (HIP 78727) DE - 11° m=4.15 could be two good reference F type stars. I can observe xi...
