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A community website devoted to cataclysmic variables.
 
Last updated 15:55 UT,  September 04,  2008

ACTIVITY AT A GLANCE
New outbursts reported in the last 72 hours
 
ddmmyy
 
040908
PS Lac #
 
030908
FO And
ST Cha
 
020908
AB Dra
VW Tuc
 
* indicates an unconfirmed outburst
indicates a noteworthy or unusual outburst
 

CVnet 'Activity At A Glance' is gleaned from observations reported to AAVSO MyNewsFlash, BAAVSS-Alert, CVnet-Outburst, VSObs-share and VSNET-outburst. We sincerely thank all the observers who contribute timely observations and reports of activity to these email lists.

microquasar.jpg
Image used with permission. Copyright Mark A. Garlick. Do not use this image without permission.

Mission Statement

CVnet’s mission is to promote a sense of community among everyone involved in the study of cataclysmic variables. Here, ideas and information are freely exchanged between professional and amateur astronomers, educators and students, variable star organizations and individuals from around the world.

CURRENT MOON

lunar phases

The images used on this page are from space artist Mark A. Garlick. Visit him on the web at www.space-art.co.uk and www.markgarlick.com
 

ip.jpg
Image used with permission. Copyright Mark A. Garlick. Do not use this image without permission.

lmxb.jpg
Image used with permission. Copyright Mark A. Garlick. Do not use this image without permission .
RECENT NEWS
 
 
September 03, 2008
Possible Nova in Scorpius
 
AAVSO Special Notice #124 reports that a possible Nova in Scorpius has been reported to CBAT unconfirmed Objects list at magnitude 9.5C on Sep 2.459UT.  The new object has been imaged by Guido et al (vsnet-alert 10490) at an unfiltered magnitude of 9.6 .  The object remains un-classified.  The position is (from Guido et al, vsnet-alert 10490) 17h 57m 32.93s  -30d 43m 10.3s (J2000)
 
September 02, 2008
CATACLYSMIC VARIABLE STAR IN Andromeda

vsnet-alert 10479 reports that the possible Nova in And, as reported on CBAT unconfirmed reports page, is in fact a new UGWZ star..." Photometry of the object obtained by T. Kryachko, S. Korotkiy, D. Denisenko and  B. Satovskiy with 8.0-cm f/7.5 ED-refractor (+ SBIG ST-2000XM) at KSU's Astrotel Observatory (Karachay-Cherkessia, Russia) during JD 2454711.343 - 2454711.434 clearly shows a humped light curve with an amplitude of 0.13m and a period of 0.055(1)d which is typical for
cataclysmic variables of UGWZ type."
 
The object is located at
RA 02h 00m 25.40s  Dec+44d 10' 18.7" (CBAT)
and has a GSC II counterpart (020025.44+44 10 19.1 j=21.16
 
Patrick Schmeer reports a visual observation obtained on Sep 2.144 at magnitude 12.6 (baavss-alert)
 
 
September 02, 2008
Possible Nova in Centaurus.
 
Grzegorz Pojmanski reports (via vsnet-alert 10482)...
"Possible Nova in Centaurus: ASAS 143503-6406.4 Grzegorz Pojmanski, Dorota Szczygiel and Bogumil Pilecki of Warsaw University Astronomical Observatory report: Using the ASAS3V instrument of The All Sky Automated Survey (telephoto lens 200/2.8, diameter 70mm + CCD + Johnsons V  filter, 3 minute exposures, pixel size 14.8 arcsec, rms astrometric accuracy 4  arcsec)  we have detected outburst of possible Nova in Centaurus at RA = 14:35:03,  DEC = -64:06.4
 
Katarzyna Malek (for Pi of the Sky team) reports via vsnet-alert 10483...  "We can confirm the presence of a new object at coordinates:
R.A. = 14:35:03, Decl. = -64:06:4
 
TIME (UT)  MAG 
<20080826 invisible
  20080826.12    9.85 C    "Pi of the Sky"
  20080829.11    8.43 C    "Pi of the Sky"

 
 

 
 
 
 

CVnet WATCH LIST

Please report outbursts or unusual activity of these CVs as soon as possible.

AAVSO Observing Campaigns-

 
BAAVSS Polar Programme- Set up to monitor AM Her type stars in need of further investigation. Details here:
 
TA/BAA Recurrent Objects Programme- A description of the program and list of objects can be found at:
 
 
Hamburg Survey CVs- A prioritized list can be found on this web site at: