[vsnet-alert 13884] (fwd) PR Her superhumps (early superhumps)

[Taichi Kato]

   The data seem to show a structured light curve (double-wave
modulations), and it is more likely early superhumps.

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Date: Tue, 22 Nov 2011 20:04:03 -0700
From: Tom Krajci <tom_krajci at tularosa.net>
Subject: PR Her - superhumps?

Hello Taichi, Ohshima,

See attached jpeg screen shot from uncalibrated images (Astrokolkhoz, 
southern New Mexico, AAVSONet telescope K35, Celestron 14, V filter, 
60-second images)

Are these superhumps?  It looks like it to me.  This is almost 2 hours 
coverage.  Amplitude is a bit more than 0.1 magnitude.

I hope folks west of me can continue coverage....

Tom Krajc

-- 
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Tom Krajci
Cloudcroft, New Mexico
http://picasaweb.google.com/tom.krajci

Center for Backyard Astrophysics (CBA)
http://cbastro.org/ CBA New Mexico

American Association of Variable Star
Observers (AAVSO): KTC http://www.aavso.org/
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