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[vsnet-alert 381] AAVSO NEWS FLASH - No. 10
- Date: Tue, 9 Apr 1996 15:10:12 -0400 (EDT)
- To: aavso-newsflash@aavso.org
- From: AAVSO <aavso@aavso.org>
- Subject: [vsnet-alert 381] AAVSO NEWS FLASH - No. 10
- Sender: owner-vsnet-alert@kusastro.kyoto-u.ac.jp
THE AMERICAN ASSOCIATION OF VARIABLE STAR OBSERVERS
25 Birch Street, Cambridge, MA 02138 USA
Tel. 617-354-0484 Fax 617-354-0665
INTERNET: aavso@aavso.org
* * * AAVSO NEWS FLASH * * *
Subject: Z Cam, SY Cnc, YZ Cnc, No. 10
R CrB, AW Gem April 9, 1996
________________________________________________________________________________
Z CAMELOPARDALIS
The dwarf nova type (prototype of its subclass) cataclysmic variable Z Cam
is now on the decline from its recent maximum as indicated by the following
observations:
UT JD Mag. Observer
MAR 19.8 2450162.3 13.0 (J. Gunther, France)
MAR 20.80 2450163.3 12.5 (M. Verdenet, France)
MAR 29.2153 2450171.7153 12.3 (T. Burrows, USA)
APR 4.2292 2450177.7292 10.6 (Burrows)
APR 7.2333 2450180.7333 10.3 (Burrows)
APR 9.065 2450182.565 11.1 (R. Stewart, USA)
------------------------------------------------------------------------------
SY CANCRI
The dwarf nova type (Z Cam subclass) cataclysmic variable SY Cnc has gone
into outburst as indicated by the following observations:
UT JD Mag. Observer
MAR 25.066 2450167.566 13.0 (R. Stewart, USA)
MAR 27.1417 2450169.6417 13.5 (J. McKenna, USA)
APR 4.2160 2450177.716 11.9:moon (T. Burrows, USA)
APR 6.2125 2450179.7125 11.1 (Burrows)
APR 8.9396 2450182.4396 11.2 (M. Biesmans, Belgium)
APR 9.056 2450182.556 10.5 (Stewart)
------------------------------------------------------------------------------
YZ CANCRI
The dwarf nova type (SU UMa subclass) cataclysmic variable YZ Cnc recently
returned to minimum following a superoutburst and now has gone into outburst
again as indicated by the following observations:
UT JD Mag. Observer
APR 1.0583 2450174.5583 <13.5 (M. Dombrowski, USA)
APR 1.920 2450175.42 <13.8 (G. Poyner, England)
APR 3.0222 2450176.5222 12.8 (Dombrowski)
APR 4.1993 2450177.6993 13.3 (T. Burrows, USA)
APR 8.9570 2450182.457 12.1 (M. Biesmans, Belgium)
APR 9.051 2450182.551 11.8 (R. Stewart, USA)
------------------------------------------------------------------------------
R CORONAE BOREALIS
R CrB (prototype of its type) is brightening as indicated by the following
observations:
UT JD Mag. Observer
MAR 2.0410 2450144.541 13.3 (M. Biesmans, Belgium)
MAR 13.1604 2450155.6604 13.3 (C. Stephan, USA)
MAR 14.2882 2450156.7882 13.1 (P. Dombrowski, USA)
MAR 19.921 2450162.421 13.3 (L. T. Jensen, Denmark)
MAR 20.1472 2450162.6472 13.0 (M. Kohl, Switzerland)
MAR 20.7 2450163.2 13.3 (T. Cragg, Australia)
MAR 21.17 2450163.67 13.7 (A. Pereira, Portugal)
MAR 23.8 2450166.3 13.2 (M. Verdenet, France)
MAR 23.9 2450166.4 13.2 (Verdenet)
MAR 24.987 2450167.487 13.4 (Jensen)
MAR 26.91 2450169.41 13.3 (G. Comello, Netherlands)
MAR 27.020 2450169.52 13.3 (Jensen)
APR 3.99 2450177.49 13.0 (Comello)
APR 4.0083 2450177.5083 12.8 (Biesmans)
APR 5.3681 2450178.8681 12.5 (R. Royer, USA)
APR 7.18 2450180.68 12.5 (R. King, USA)
APR 8.9028 2450182.4028 12.3 (Biesmans)
------------------------------------------------------------------------------
AW GEMINORUM
The dwarf nova type cataclysmic variable AW Gem has gone into outburst as
indicated by the following observations:
UT JD Mag. Observer
FEB 20.0986 2450133.5986 <14.0 (W. Dillon, USA)
MAR 2.2604 2450144.7604 <13.5 (Dillon)
MAR 8.1264 2450150.6264 <14.0 (Dillon)
APR 9.048 2450182.548 13.9 (R. Stewart, USA)
APR 9.1333 2450182.6333 13.8 (Dillon)
------------------------------------------------------------------------------
Please monitor these stars closely and phone-in, fax, or e-mail your
observations to the AAVSO.
Good observing!
Janet A. Mattei
________________________________________________________________________________
AAVSO NEWS FLASH is a new electronic publication of the AAVSO intended
to provide observers with timely information on unusual variable star
activity. The basis of the data in this publication will be the
observations reported to AAVSO Headquarters.
The AAVSO NEWS FLASH will not replace the AAVSO Alert Notice. It will
be more frequent and shorter.
If you would like to contribute to AAVSO NEWS FLASH, please send
observations of unusual variable star activity to:
observations@aavso.org
Please include the words NEWS FLASH in the subject line of your message.
If you are affiliated with a variable star organization besides the
AAVSO, and you wish that group to be indicated with the observations
that you provide, please give the specific name of the organization or
group and its abbreviation.
Those who wish to unsubscribe to NEWS FLASH may do so by sending a
message to:
observations@aavso.org
If you would like data from the AAVSO International Database for
research purposes, please send your request to:
Janet Mattei, AAVSO Director, at aavso@aavso.org
We look forward to including your observations in future editions
of AAVSO NEWS FLASH!
________________________________________________________________________________
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