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[vsnet-obs 2975] (fwd) Fading of V705 Cas

>From alon@wise.tau.ac.il Mon Jun 17 17:43:54 1996
Date: Mon, 17 Jun 1996 11:43:31 +0300
From: Alon Retter <alon@wise.tau.ac.il>
To: rjbouma@pi.net, tkato@kusastro.kyoto-u.ac.jp
Subject: Fading of V705 Cas

Hi,

Concerning the message on the fading of V705 Cas:
We observed this nova for about 20 nights continously during
this winter with 1 meter telescope and a CCD.
Our results indicate a continous fading of the nova:
about 0.1 mag in the V band from 16/11/95 to 13/1/96,
and about 0.2 mag in the I band from 25/8/95 till 13/1/96.
Since we use just part of the ccd we cannot tell the exact valuses,
however it seems consistent with the report.

Our observations also indicate a sinusoidal varioation of about
0.08 peak to peak mag in the I band and a bit less in the V filter 
The period is around 5.5 hours. (See I.A.U.C. No. 6234)
This cannot explain the 1 mag difference between the various reports, 
but can add to the effect mentioned.

It also seems that the variation weakened during our observations,
and it may fit to a fading of the white dwarf which causes less
reflected light from its companion.

Alon Retter