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[vsnet-alert 449] AAVSO News FLash - No. 32
- Date: Mon, 24 Jun 1996 12:30:42 -0400 (EDT)
- To: aavso-newsflash@aavso.org
- From: AAVSO <aavso@aavso.org>
- Subject: [vsnet-alert 449] AAVSO News FLash - No. 32
- 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: TT Boo, V516 Cyg, V811 Cyg, X Leo, No. 32
CY Lyr, FO Aql, R CrB, CH Cyg, IP Peg June 24, 1996
________________________________________________________________________________
TT BOOTIS
The dwarf nova type (SU UMa subclass) cataclysmic variable TT Boo is in
outburst as indicated by the following observations:
AAVSO Observer AAVSO Observer
UT Mag. Initials UT Mag. Initials
JUN 22.2035 <14.8 HSG JUN 24.1007 13.7 BRJ
JUN 22.2549 13.0 SQN JUN 24.1417 13.7 GRI
JUN 24.1153 13.3 MKJ
-----------------------------------------------------------------------------
V516 CYGNI
The dwarf nova type (SS Cyg subclass) cataclysmic variable V516 Cyg is in
outburst as indicated by the following observations:
AAVSO Observer
UT Mag. Initials
JUN 22.2674 13.8 BTH
JUN 23.2951 14.0 SWT
JUN 24.1847 13.6 SWT
-----------------------------------------------------------------------------
V811 CYGNI
The dwarf nova type (SS Cyg subclass) cataclysmic variable V811 Cyg is in
outburst as indicated by the following observations:
AAVSO Observer
UT Mag. Initials
JUN 23.2924 14.7: SWT
JUN 24.1715 14.3 SWT
JUN 24.2722 14.1 GRI
-----------------------------------------------------------------------------
X LEONIS
The dwarf nova type (SS Cyg subclass) cataclysmic variable X Leo appears to
be in outburst as indicated by the following observations:
AAVSO Observer
UT Mag. Initials
JUN 20.1681 <13.5 HSG
JUN 22.1687 12.2 HSG
-----------------------------------------------------------------------------
CY LYRAE
The dwarf nova type (SS Cyg subclass) cataclysmic variable CY Lyr is in
outburst as indicated by the following observations:
AAVSO Observer AAVSO Observer
UT Mag. Initials UT Mag. Initials
JUN 22.2507 <14.4 HSG JUN 24.1229 13.5 SWT
JUN 23.85 13.4 SCZ JUN 24.2153 13.2 GRI
JUN 24.1139 13.6 BRJ
-----------------------------------------------------------------------------
FO AQUILAE
The dwarf nova type (SS Cyg subclass) cataclysmic variable continues in
outburst (see News Flash No. 31) is indicated by the following observations:
AAVSO Observer AAVSO Observer
UT Mag. Initials UT Mag. Initials
JUN 20.2847 14.1 HSG JUN 24.1868 13.3 SWT
JUN 22.2854 14.1 HSG JUN 24.2347 13.3 GRI
JUN 23.3146 13.4 SWT
-----------------------------------------------------------------------------
R CORONAE BOREALIS
R CrB (prototype of its class) continues to brighten slowly from its current
decline. It has brightened about two magnitudes since May 6th when it was
at about magnitude 10.3 (see News Flash No.17). Below are recent observations
on it.
AAVSO Observer AAVSO Observer
UT Mag. Initials UT Mag. Initials
JUN 10.0840 8.7 BMM JUN 15.2174 8.8 HSG
JUN 10.1438 8.3 DLA JUN 15.88 8.0 SCZ
JUN 10.1688 8.5 DIL JUN 15.9333 8.5 BMM
JUN 10.88 8.5 ZAM JUN 15.936 8.4 DPA
JUN 11.0660 8.7 BMM JUN 16.12 8.8 PAE
JUN 11.1146 8.5 DIL JUN 16.1917 8.5 DIL
JUN 11.179 8.6 OCN JUN 16.2257 8.5 KB
JUN 11.2326 8.8 HSG JUN 16.2792 8.7 HSG
JUN 11.2458 8.4 BTH JUN 16.9486 8.5 BMM
JUN 12.85 8.7 VET JUN 17.1340 8.5 DIL
JUN 12.9229 8.6 BMM JUN 17.85 7.6 ZAM
JUN 13.2194 8.5 RR JUN 17.9979 8.5 BMM
JUN 13.8 8.2 SCZ JUN 18.914 8.4 DPA
JUN 13.909 8.5 BMM JUN 19.09 8.4 PAE
JUN 14.8958 8.5 BMM JUN 20.1146 7.8 SET
JUN 14.913 8.3 SKP JUN 20.2431 8.3 BTH
JUN 14.981 8.5 DPA JUN 20.2917 8.5 HSG
JUN 15.0847 8.3 SET JUN 22.2694 8.5 HSG
JUN 15.1139 8.5 BRJ JUN 23.3118 8.4 RTY
JUN 15.175 8.4 MKJ JUN 23.88 8.2 ZAM
JUN 15.2132 8.7 RTY
-----------------------------------------------------------------------------
CH CYGNI
The Z And type cataclysmic variable CH Cyg continues to be very faint (see
News Flash No. 28 & 31) as indicated by the following observations:
AAVSO Observer
UT Mag. Initials
JUN 20.2958 10.4: HSG
JUN 22.2722 10.4 HSG
-----------------------------------------------------------------------------
IP PEGASI
The present outburst (see News Flash No.31) of the dwarf nova type (SU UMa
subclass) cataclysmic variable IP Peg appears to be a superoutburst as
indicated by the following observations:
AAVSO Observer AAVSO Observer
UT Mag. Initials UT Mag. Initials
JUN 20.3069 13.5: HSG JUN 23.3194 13.6 SWT
JUN 20.3674 12.0 DLA JUN 24.05 12.3 SCZ
JUN 22.2986 12.6 HSG
-----------------------------------------------------------------------------
We thank the following contributors for the data that they have provided
for this News Flash:
BMM - M. Biesmans, Belgium PAE - A. Pereira, Portugal
BRJ - J. Bortle, USA RR - R. Royer, USA
BTH - T. Burrows, USA RTY - T. Rogers, USA
DIL - W. Dillon, USA SCZ - E. Schweitzer, France
DLA - A. Dill, USA SET - C. Stephan, USA
DPA - A. Diepvens, Belgium SKP - P. Skalak, Czech Republic
GRI - J. Griese, USA SQN - L. Shaw, USA
HSG - G. Hanson, USA SWT - R. Stewart, USA
KB - W. Kaminski, USA VET - M. Verdenet, France
MKJ - J. McKenna, USA ZAM - M. Zanotta, Italy
OCN - S. O'Connor, Canada
Please monitor these stars closely and phone-in, fax, or e-mail your
observations to the AAVSO.
Good observing!
Janet A. Mattei
Note of thanks: I would like to express my sincere thanks to my technical
assistant Rebecca Pellock who kept publishing the AAVSO News Flashes and all
the observers who contributed observations to them while I was away attending
the IAU Symposium 177 on Carbon Star Phenomenon in Turkey and visiting my
family there. The scientific program of the Symposium covering all aspects
of carbon stars was excellent. The AAVSO was well represented there with one
invited and two contributed papers and many references to the AAVSO data.
- JAM
________________________________________________________________________________
Symbols may include: < = fainter than magnitude given (variable not seen)
: = uncertain
CCDV = Charge-coupled device with (V) filter
If you would like to contribute to AAVSO NEWS FLASH, please send
observations of unusual variable star activity to:
observations@aavso.org
Those who wish to subscribe (free of charge) or 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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