Symbiotic star R Aqr

Show your spectra, your results ...

Symbiotic star R Aqr

Postby Francois Teyssier » Fri Sep 23, 2011 2:16 pm

The symbiotic star R Aqr is near it's luminosisty minimum (mag )
It's spectrum is very peculiar : typical nebular lines above the absorption spectrum of a red giant.
R Aqr is one the scarce D type symbiotics luminous enough for amateur spectroscopy :the red giant is Mira type star.
It's supposed to have been a nova observed by eastern astronoms at the begining of the second millenary.

Image

As the luminosity will increase, the emission lines will weaken

See also : http://www.astronomie-amateur.fr/feuilles/Spectroscopie/SyS/R%20Aqr.html
Francois Teyssier
 
Posts: 1345
Joined: Fri Sep 23, 2011 1:01 pm
Location: Rouen

Return to Spectra, results, information on activity ...

Who is online

Users browsing this forum: No registered users and 3 guests

cron

x