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Spectro, Astero et Hélio Blog

21 septembre 2011

SN2011 fe

SN2011 fe
New observation and firstime supernova for me ! A light coming from 20 millons Ly ! At V mag nearly 10.5, this SN is in the range of both low and high resolution amateur spectroscopy. Cause of the doppler broadening effect, the spectral lines are very...
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11 juillet 2011

IAC 80 Video

Some youtube videos of our Team, Telescope and Teide observatory.
11 juillet 2011

IAC80, a mission on delta scorpii at the Teide

For nine nights i have been there in good compagny. http://www.iac.es/eno.php?op1=3&lang=en This mission was about the peri-astron of delta scopii and was a real success. We have got in nine nights 30 Halpha spectra, 30 HeII 4500, 4686 and one H gamma....
24 février 2011

end of 2010, early 2011 behavior of the H-alpha line of epsilon Aurigae

end of 2010, early 2011 behavior of the H-alpha line of epsilon Aurigae
In 2010, November the red wing of the HII shell around the supergiant F star has reappeared, uncovered by the secondary object. This return make the inside bottom Ha bump disappeared and some unexpected bumps appeared in the sodium doublet in December,...
23 février 2011

Z cma outburst

Z cma outburst
Hello, recently the pre main double star Z cma showed a stong photometric outburst according to the AAVSO special notice #232 http://www.aavso.org/aavso-special-notice-232 A new amateur international spectroscopic campaign has been designed to gather...
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29 janvier 2011

Prendre des néons à distance avec un LhiresIII

Prendre des néons à distance avec un LhiresIII
J'ai expérimenté hier soir par ciel brumeux un système simple pour commander la prise des néons de calibration sans quitter le salon. Il s'agit d'utiliser une simple prise de courant télécommandée, servant par exemple à allumer une lampe de chevet à distanc...
26 janvier 2011

UX ori

UX ori
UX ori is an herbig type object, first of the UXors group. This pre main sequence star have spectrometric and phtotometric variation correlated and anticorrelated depending of the spectral domain.. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=ux+ori&submit=SIMBAD+search...
21 janvier 2011

epsilon Aurigae AAS 2011 poster

In 2011 January a Poster made by Robin Leadbeater, was presented at the January 2011 AAS in Seatle. This poster based on the epsilon Aurigae internationnal campaign spectra summarized in a wonderful manner the two thirds parts of the ongoing eclipse....
16 janvier 2011

OT gem outburst !

OT gem outburst !
OT gem, HD58050, Be star, has ran in activities. Double Ha peak get stronger in my last spectra. There is not a lot of spectra available in Bess, but such activities were seen from 1996 to 2001 by Valerie Desnoux and Christian Buil. Intensives observations...
29 novembre 2010

Epsilon Aurigae et le retour de l'Anneau

Epsilon Aurigae et le retour de l'Anneau
En ce mois de novembre, les spectres de epsilon aurigae montrent un brusque retour de la signature en émission de l'anneau d'hydrogène ceinturant la supergéante F. Le disque obscur éclipsant ne couvre plus la partie R, s'éloignant de nous, de cet anneau....
31 octobre 2010

Strange facts about ci Cygni

Strange facts about ci Cygni
Symbiotic star ci Cygni is going on eclipse these last weeks with a Mv dropping to 11.4. The period of the system is about 853 days and maximum is awaited for mid November At the same time the system has an ongoing outburst from the disk around the white...
27 octobre 2010

October eps Aur Ha facts

October eps Aur Ha facts
A summarize of my 2010, October observations around Ha region. Eps aur seems to have a very quiet phase, the first one after mid eclipse. No majors changes in the Ha core. Some transients lines appeared and disappeared around 6605A region. Add from November,...
11 octobre 2010

Somes September and early October news of epsilon Aurigae

Somes September and early October news of epsilon Aurigae
Hi everybody, it was a long time i did not any blog on my observations. I was very busy with weirds spectral things during August on eps aur and compete a spectral run on Be star with more than forty stars observations. Some publications are awaited on...
25 juillet 2010

HD 206773, raies nébulaires

HD 206773, raies nébulaires
HD 206773 se trouve dans une nébuleuse, IC1396 dans Céphée. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+206773&submit=SIMBAD+search Du coup son spectre se trouve affublé d'une fine raie en émission Ha flanquée de plus subtiles raies de l'azote...
19 juin 2010

HD171219, COROT observation

HD171219, COROT observation
These days Bess observers were asked for Ha spectra coverage of HD171219 in Ophiucus by COROT team. COROT is a very accurate photometric space telescope. Its primary goal is asteroseismology, star variability and secondary is eclisping exolplanet (16...
16 juin 2010

Last news of FF cam

Last news of FF cam
This new highly variable Be star seems to be very strange. Each six differents spectrums taken between April 25th and June 6th are different ! So fast and intense variation from a Be star are not common. Sheliak is an example, perhaps unique with FF cam....
15 juin 2010

Neon stuff

Neon stuff
The LhiresIII spectrograph has a built-in neon lamp for calibrating stellar spectrum. Taking one neon spectra before and after stellar exposition is highly recommended in high resolution spectrography cause of the mechanical instability of this "at telescope...
6 juin 2010

Observing during daylight, observation de jour

Observing during daylight, observation de jour
Spectroscopy of eps aur in these times is a tought task. I've been able to follow esp aur during end of may and this early June with a higher pier. I've started capture during daylight, with manual autoguiding, having still 40mm before epsaur set behing...
21 mai 2010

Dernier spectre de Epsilon Aurigae ?

Dernier spectre de Epsilon Aurigae ?
Eps Aur approche de sa conjonction solaire. Elle est chez moi très basse à l'horizon encombré d'une colline. Je suis obligé de lancer les acquisitions quasiment en plein jour, enfin dés qu'elle est visible à l'autoguidage. Voici donc peut être le dernier...
5 mai 2010

HD60062, FF cam

HD60062, FF cam
Another Be star, late type, B9 http://arasbeam.free.fr/spip.php?page=beam_spectra&etoile=1964 http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=hd+60062&submit=SIMBAD+search There is a lack of spectra concerning this star with a suspicion of fast variation...
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