[Aavso-photometry] 1RXS J053234.9+624755 fading and re-brightening

[pasc1312-aavso at yahoo.de]

Visual magnitude estimates by P. Schmeer, Bischmisheim,
Germany:
1RXSJ053234.9+624755 20050317.818 122 SPK
1RXSJ053234.9+624755 20050318.828 128 SPK
1RXSJ053234.9+624755 20050319.860 120 SPK
1RXSJ053234.9+624755 20050320.802 119 SPK
 
In several respects 1RXS J053234.9+624755 seems to
be similar to T Leo. The orbital period and the mean
cycle length are quite the same for both stars. Once
I observed a normal outburst of T Leo immediately
followed by a supermaximum. The outburst maxima were
separated by about three days, and in-between T Leo
did not return to its quiescence magnitude.
However, at maximum T Leo (mag 10) is 2 magnitudes
brighter than 1RXS J053234.9+624755 (mag 12).
 
Regards,
Patrick

------------------------------------------------------
P.S.:
The re-brightening of 1RXS J053234.9+624755 was
first announced in Geir Klingenberg's following
message to aavso-photometry:
"I can confirm the observations of Tonny Vanmunster.
Between 19:00 UT on March 17 and 04:40 on March 18 I
observed superhumps with a period of 0.055d and
amplitude of approx. 0.1 mag.

Tonight, between 19:00 UT on March 18 and 04:30 on
March 19 I observed superhumps with a period of 0.057d
and an amplitude of about 0.2 mag. The amplitude seems
to be increasing and the star might be re-brightening.

I will post my observations to AAVSO soon. You can see
preliminary light curves here:

http://asp.jm-data.no/geke15obs/

Geir Klingenberg"


	

	
		
___________________________________________________________ 
Gesendet von Yahoo! Mail - Jetzt mit 250MB Speicher kostenlos - Hier anmelden: http://mail.yahoo.de