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[vsnet-obs 4626] EG Cnc, V493 Lyr, DX And
- Date: Mon, 23 Dec 1996 00:08:01 -0100
- To: observations@aavso.org, JBortle@aol.com, guy@tahq.demon.co.uk, tkato@kusastro.kyoto-u.ac.jp, gp@star.sr.bham.ac.uk, pvancaut@innet.be, bill.worraker@aea.orgn.uk, nogami@kusastro.kyoto-u.ac.jp, safnet@mesiob.obspm.fr, KFA02524@niftyserve.or.jp, vsnet-obs@kusastro.kyoto-u.ac.jp, NAH01147@niftyserve.or.jp, ebroens@innet.be, fidusz@alba.zpok.hu, sno@iris.geobio.elte.hu
- From: Tonny Vanmunster <tvanmuns@innet.be>
- Subject: [vsnet-obs 4626] EG Cnc, V493 Lyr, DX And
- Sender: owner-vsnet-obs@kusastro.kyoto-u.ac.jp
BELGIAN ASTRONOMICAL SOCIETY V.V.S. - Working Group Variable Stars
Cataclysmic Variables Circular No.118 1996, December 22
Ed.: T. Vanmunster, Walhostraat 1A, 3401 Landen, BELGIUM
Internet: tvanmuns@innet.be TEL. 32-11-831504
===================================================================
EG Cnc [UGSU, 11.9v - 17:v]
===========================
EG Cnc is living up the expectations ! The object rebrightened
considerably after its initial fading, and is now showing another
superoutburst. First notice of this rebrightening was given by
Taichi Kato, Ouda Observatory, Kyoto University, Japan on VSNET and
further commented in a message on December 21, 1996 : "Preliminary
analysis of a 4-hour run of EG Cnc tonight has revealed the existence
of prominent superhumps with an amplitude of ~0.12 mag. The observa-
tion seems to suggest that the present rebrightening is again a super-
outburst following a "dip" or a temporary fading after the main
superoutburst, apparently tracing the course of the spectacular 1995
outburst complex of AL Com ...".
Unfiltered CCD photometry at the CBA Observatory, Belgium, on the
night of December 21/22, 1996 (4-hour run) indicates that the ampli-
tude of the (super)hump features already has decreased to less than
0.02 mag.
Please continue to monitor this most interesting variable !
-------------------------------------------
DATE (UT) MAGN MS OBSERVER
-------------------------------------------
1996 12 15.940 15.70 CU Jensen
1996 12 16.95 <15.6 mv Kinnunen
1996 12 17.91 <15.6 mv Kinnunen
1996 12 18.462 <14.1 mv Hanson
1996 12 18.95 <15.6 mv Kinnunen
1996 12 19.296 <14.1 mv Shaw
1996 12 20.672 16.13 CV Ouda
1996 12 20.90 15.4 mv Kinnunen
1996 12 21.552 13.63 CV Ouda
1996 12 21.650 13.34 CV Ouda
1996 12 21.722 12.7 mv Watanabe
1996 12 21.776 13.29 CV Ouda
1996 12 21.788 12.7 mv Watanabe
1996 12 21.845 13.2 mv Itoh
1996 12 21.90 13.3 mv Kinnunen
1996 12 21.91 13.1 mv Pietz
1996 12 21.911 13.3 CU Vanmunster
1996 12 21.950 13.6 mv Poyner
V493 Lyr [UG, 13.2 - 18.0p]
===========================
The outburst of V493 Lyr, announced in CVC 117, apparently is a
bright one, as indicated by the observations below.
-------------------------------------------
DATE (UT) MAGN MS OBSERVER
-------------------------------------------
1996 12 13.069 [14.1 mv Hanson
1996 12 13.752 [14.1 mv Jensen
1996 12 14.71 14.7 mv Pietz
1996 12 14.76 14.7 mv Pietz
1996 12 15.752 14.1 mv Jensen
1996 12 15.761 14.5 CU Jensen
1996 12 18.078 13.8: mv Hanson
1996 12 19.094 13.7: mv Hanson
1996 12 21.706 14.3 CU Vanmunster
1996 12 21.722 13.5 mv Poyner
DX And [UG, 10.9p - 16.4p]
==========================
The photometric summary of the DX And outburst, started in CVC 117,
is continued below.
-------------------------------------------
DATE (UT) MAGN MS OBSERVER
-------------------------------------------
1996 12 13.763 13.0 mv Jensen
1996 12 15.762 13.0 mv Jensen
1996 12 16.01 [12.5 mv Granslo
1996 12 16.706 13.0 mv Westlund
1996 12 18.114 12.9 mv Hanson
1996 12 19.06 12.6 mv Granslo
1996 12 19.117 12.6 mv Hanson
1996 12 19.803 12.4 mv Westlund
1996 12 20.580 12.9 mv Itoh
1996 12 21.357 13.03 CV Ouda
1996 12 21.504 13.07 CV Ouda
1996 12 21.792 13.2 mv Poyner
Tonny Vanmunster