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.
New outbursts and unusual activity reported in the last 5 days
YYYYMMDD
20261103
LX And
CK Eri
WX Hyi
LMC V3434
AA Oct
V587 Lyr
TY Psc
VZ Pyx
V729 Sgr
VW Tuc
SY Vol
ASASSN-14ff
20261102
SS Cyg
AB Dra
V1159 Ori
TZ Per
20261101
FO Aql
WZ CMa
EC 05200-5205
GDS_J1701281-430612
TU Ind
CM Mic
BI Ori
GS Pav
HX Peg
V598 Sco
ASASSN-26fr
# indicates a noteworthy or unusual activity
: indicates confirmation required
* indicates time-resolved photometry required
ASASSN-26fr: most likely a new WZ Sge-type dwarf nova.
Yusuke TAMPO / 反保 雄介
vsnet-outburst 31736
November 4. 2026
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AAVSO Alert Notice - Observing Campaign #929
Request for frequent monitoring of RU Peg
May 21, 2026
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AAVSO Alert Notice - Observing Campaign #926
Monitoring Cataclysmic Variables: Hunting for Low States
May 13, 2026
For new papers on CVs see arxiv.org astro-ph
Updated October 27, 2026
Accretion Geometry and Variability in QS Telescopii from multi-epoch Observations
L Booi, S.B. Potter, Z.N. Khangale, V Moloi, P.A. Woudt
A Comprehensive Study of the Long-Period Cataclysmic Variable V630 Cassiopeiae
Ivan Mora Zamora, Gagik Tovmassian, Juan Echevarria, Diogo Belloni
Superoutbursts and Superhumps of Cataclysmic Variables observed with TESS
Qi-Bin Sun, Sheng-Bang Qian, Li-Ying Zhu, Qin-Mei Li, Wen-Ping Liao, Fu-Xing Li, Wen-Xu Lin, Min-Yu Li, Ping Li, Fang-Zhou Yan, Zi-Mo Li, Tao Wang, Mao-Han Zhang
Zhibin Dai, Xuefei Chen, Zhanwen Han
Cataclysmic Variables Photometric Periods from TESS
S. O. Kepler, Alejandra Daniela Romero, Larissa Luciano Amorim, Marcos Perez Diaz
The Recurrent Nova TCrB: A Method for Predicting the Next Eruptive Event in Nova Cycles.
Stefano Sello
Long-term Orbital Period Variations of the Eclipsing Dwarf Nova HT Cas
Aykut Ozdonmez, Huseyin Er, Ilham Nasiroglu, M. Emir Kenger, Murat Tekkesinoglu, Ergun Ege, Burak Batuhan Gürbulak, Ali Takey, Nazlı Karaman, M. Abdelkareem
Pre-nova Observations of T CrB: A view from the CHARA Array
Ryan Norris, Narsireddy Anugu, Thomas Gaudin, Magdalena Otulakowska-Hypka, Fabian Kaczmarek, Cameron Caruso, Cody Gustafson, Andrew Kotowski, Rebecca Proni, Nirupam Roy, Fabien Baron, Dipankar P.K Banerjee, Dana K. Baylis-Aguirre, Michelle J. Creech-Eakman, Justin Linford, Alexandre Gallenne, Joanna Mikołajewska, John D. Monnier, Denis Mourard, Ulisse Munari, Nicolas Nardetto, Rachael M. Roettenbacher, Jennifer L Sokoloski, Montana Williams, C. E. Woodward, Stefan Kraus, Jean-Baptiste Le Bouquin, Sorabh Chhabra, Isabelle Codron, Jacob Ennis, Tyler Gardner, Mayra Gutierrez, Noura Ibrahim, Cyprien Lanthermann, Benjamin R. Setterholm, Christopher D. Farrington, Olli Majoinen, Norm Vargas, Douglas R. Gies, Gail H. Schaefer, Theo ten Brummelaar
Balmer decrements as a new diagnostic for period-bounce
Santiago Hernández-Díaz, Beate Stelzer and Daniela Muñoz-Giraldo
Disk instability model incorporating a variable inner disk radius in SS Cyg and U Gem
Mariko Kimura, Osaki Yoji
Detection of a molecular hydrogen envelope around nova GK Persei
D.P.K. Banerjee, A. Evans, T. Liimets, C.E. Woodward, T.R. Geballe, V. Joshi, S. Starrfield
Accreting White Dwarfs: An Unreview
Simone Scaringi, Christian Knigge and Domitilla de Martino
The accretion discs in WZ Sge-type stars in deep quiescence. How do they outburst?
Vitaly Neustroev, Paula Kvist, Miikka Siitonen, Veera Vuolteenaho
V515 And: An Intermediate Polar in the Period Gap Exhibiting Outbursts
Srinivas M Rao, Jeewan C Pandey, Nikita Rawat, Simone Scaringi, Arti Joshi, David A. H. Buckley, Ajay Kumar Singh
Bradley E. Schaefer
Superhumps in active dwarf novae. Part I: ER Ursae Majoris
K. Bakowska, B. Kirpluk, P. Zielinski, M. Motylinski, A. Gurgul, J. Golonka, K. Szyszka
Luis E. Salazar Manzano, Liliana E. Rivera Sandoval, Jean-Marie Hameury, Craig O. Heinke, Iwona Kotko, Thomas J. Maccarone, Manuel Pichardo Marcano
CV artwork courtesy Darren Baskill