R Aqr Eclipse - Monitoring requested

R Aqr Eclipse - Monitoring requested

Postby Francois Teyssier » Fri Jul 12, 2019 8:54 pm

R Aqr could be in eclipse according to the luminosity of the system near the maximum of the pulsation.
Margarita Karovska (Columbia University) request spectroscopic monitoring (low and high res) as soon as possible.

François
Francois Teyssier
 
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Re: R Aqr Eclipse - Monitoring requested

Postby Francois Teyssier » Fri Jul 12, 2019 9:41 pm

The historical light curve in AAVSO database (Visual, 15 days mean)
since 1908

RAqr_Histo.PNG
RAqr_Histo.PNG (22.87 KiB) Viewed 56 times


The 3 last pulsations of the Mira
RAqr.PNG
RAqr.PNG (4.8 KiB) Viewed 56 times

with the recent maximum about 1 mag under the previous ones.
Francois Teyssier
 
Posts: 1241
Joined: Fri Sep 23, 2011 1:01 pm
Location: Rouen


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