La symbiotique CH Cyg est l'étoile retenue pour comparer les différents résultats des participants à ce stage OHP 2013, en haute et basse résolution (LISA, Alpy600, Lhires ...)
Au LISA à R = 1000 :
Voici une comparaison avec un spectre de géante M6 III
On note l'aspect composite du spectre :
- continuum déformé dans le bleu par la naine blanche, avec les profondes bandes d'absorption produites par l'oxyde de titane (TiO)
- raies en émission, produites par la nébuleuse entourant les deux étoiles (vent stellaire issu de la géante rouge, excité par la naine blanche)
François Teyssier
CH Cyg - Etoile OHP 2013
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CH Cyg - Etoile OHP 2013
François Teyssier
http://www.astronomie-amateur.fr
http://www.astronomie-amateur.fr
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Re: CH Cyg - Etoile OHP 2013
Hello,
here is my contribution to the CH Cyg "contest"...
Equipment
* Televue 85mm refractor
* Alpy 600 spectrograph
* Atik 460EX acquisition camera
Result / Spectrum
here is my contribution to the CH Cyg "contest"...

Equipment
* Televue 85mm refractor
* Alpy 600 spectrograph
* Atik 460EX acquisition camera
Result / Spectrum
Olivier Thizy
https://observatoire-belle-etoile.blogspot.fr/
https://observatoire-belle-etoile.blogspot.fr/
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Re: CH Cyg - Etoile OHP 2013
Hello,
my little contribution from the OHP workshop: The spectra were obtained with the mount of Hubert Boussier (Takahashi), in a small international am-am-collaboration. Thank you Hubert for using your mount. As a little miracle no problems occurred combining the soft and hardware for finding the stars and autoguiding and taking the spectra.
With careful focusing resolution did not decrease much with the 35 mu slit, but giving more signal.
regards,
Martin
my little contribution from the OHP workshop: The spectra were obtained with the mount of Hubert Boussier (Takahashi), in a small international am-am-collaboration. Thank you Hubert for using your mount. As a little miracle no problems occurred combining the soft and hardware for finding the stars and autoguiding and taking the spectra.
With careful focusing resolution did not decrease much with the 35 mu slit, but giving more signal.
regards,
Martin
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