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[vsnet-obs 1618] REQUEST TO MONITOR V493 LYR
- Date: Mon, 27 Nov 1995 20:41:39 -0100
- To: vsnet-obs@kusastro.kyoto-u.ac.jp
- From: Tonny Vanmunster <tvanmuns@innet.be>
- Subject: [vsnet-obs 1618] REQUEST TO MONITOR V493 LYR
- Cc: jpietz@astro.uni-bonn.de, gp@star.sr.bham.ac.uk, bill.worraker@aea.orgn.uk, ebroens@innet.be, j.bortle@genie.geis.com, lasse.teist@thranethrane.dk400.dk, sno@iris.elte.hu, pvancaut@innet.be
- Sender: owner-vsnet-obs@kusastro.kyoto-u.ac.jp
Dear Colleagues,
I would very much appreciate your help on the following.
While preparing the next CVC issue, I compiled a photometric summary of V493
Lyr (a recently discovered UG-type dwarf nova), which is listed below.
During this
process, I noticed that the variable shows brightness variations of nearly
0.5 magnitudes in narrow time intervals. This event has been recorded
several times during the present outburst. It would be extremely interesting
to monitor V493 Lyr in very close detail (several observations a night by
different observers)
during the present (super)outburst, in order to determine if the observed
behaviour is indeed real.
I therefor would like to ask EXPERIENCED observers to make estimates of this
object, at least every 15 minutes (and more frequently if a variation is
detected). Confirmation by CCD observations would of course be most appreciated.
-----------------------------------------------------------------------
DATE (UT) MAGN MS SEQ OBSERVER REMARKS SOURCE
-----------------------------------------------------------------------
1995 11 18.757 [14.1 mv Day, J. VSNET
1995 11 19.760 [14.1 mv *Jensen, L. priv(JEN)
1995 11 20.718 14.1 mv Jensen, L. VSNET
1995 11 20.756 14.1 mv Pietz, J. CVC72
1995 11 21.681 13.9 mv Szentasko, L. CVC72
1995 11 21.701 14.0 mv Jensen, L. CVC72
1995 11 21.718 14.3 mv *Pietz, J. VSNET
1995 11 21.731 14.3 mv *Pietz, J. VSNET
1995 11 21.781 13.8 mv *Pietz, J. VSNET
1995 11 21.937 13.5 mv TA Worraker, B. CVC72
1995 11 22.7 14.0 mv Szentasko, L. VSNET
1995 11 22.765 13.7 mv Poyner, G. VSNET
1995 11 22.768 14.3 mv TA Worraker, B. priv(WOR)
1995 11 22.795 13.6 mv *Day, J. VSNET
1995 11 24.891 14.3: mv TA Vanmunster, T. VSNET
1995 11 25.704 14.4 mv *Pietz, J. VSNET
1995 11 25.736 14.0 mv TA *Vanmunster, T. VSNET
1995 11 25.737 14.1 mv *Pietz, J. VSNET
1995 11 25.811 14.0 mv TA *Vanmunster, T. VSNET
1995 11 26.70 14.4 mv *Szentasko, L. VSNET
1995 11 26.792 14.4 mv *Poyner, G. VSNET
Please report your findings on VSNET.
Kind regards,
Tonny Vanmunster