Forum Topics Posts Last post
No new posts
Ask questions on any topic. Nothing is too simple or too complex to ask!
1087 4363 By clkotnik 2 hours 59 minutes ago
No new posts
Technical support for questions about the AAVSO web site and/or forums. Report bugs here.
216 938 By Calculad 4 days 23 hours ago
No new posts
Un foro para la comunidad de habla hispana dedicado a intercambiar comentarios, observaciones y todo tipo de informacion relacionada con las estrellas variables y su estudio.
126 405 By Sebastian Otero 1 week 2 days ago
No new posts
Discussion of AAVSO-related software projects (VSX, Zapper, etc.).
170 964 By Aliciasmith 1 week 4 days ago
No new posts
A forum to discuss variable star data analysis.
105 558 By daisy 4 weeks ago
No new posts
Discussion of the AAVSO's visualization and analysis tool, VStar
188 1441 By David Benn 2 weeks 1 day ago
No new posts
For discussion of VSX, the AAVSO Variable Star Index.
158 619 By clkotnik 1 week 1 day ago
Forum Topics Posts Last post
No new posts

For discussions on all aspects of equipment, from building new devices from scratch, to what ready made products are the best for your current setup. Attached the "Instrumentation and Equipment" observing section.

131 996 By Calculad 1 week ago
No new posts
Please use this forum to distribute time sensitive observation alerts.
334 1596 By Mohammad Odeh 1 week ago
No new posts
18 103 By AAVSO_ 1 year 10 months ago
No new posts
Discuss ongoing campaigns (Alert Notices, Special Notices, etc.), announce your own projects and report interesting observations here.
463 3365 By garnavich 2 hours 45 minutes ago
No new posts
Discussion of and tips for making visual observations.
202 1191 By weo 3 weeks 4 days ago
No new posts
Discussion of CCD, PEP and DSLR photometry.
787 5588 By MZK 2 days 2 hours ago
No new posts
288 1772 By wbailey42 3 days 3 hours ago
No new posts
This forum is for discussion of AAVSOnet topics including announcements, status updates, technical support and more.
326 1018 By Degen1103 4 days 12 hours ago
No new posts
This forum is for discussion of VPHOT topics including announcements, status updates, technical support and more.
628 3265 By Calculad 3 weeks 4 days ago
Forum Topics Posts Last post
No new posts
This forum is for discussions of cataclysmic variable stars.
339 1172 By alburaidi 3 hours 12 minutes ago
No new posts
16 48 By weo 3 months 3 weeks ago
No new posts

Information on the observation and analysis of stars and other objects that are sources of x-rays and gamma rays.

48 228 By Bikeman 6 days 8 hours ago
No new posts

Information on the Observation and analysis of short period pulsators such as Cepheids and RR Lyrae.

26 120 By arx 1 day 13 hours ago
No new posts
Discussion of eclipsing binary stars.
69 384 By kevinbalton 1 week 3 days ago
No new posts
94 445 By NikolaAntonov 1 day 3 hours ago
No new posts
Discussion of long period variable stars: mira's, semiregulars, etc.
164 826 By soi 1 month 1 week ago
No new posts
A forum created to support Jeno Sokoloski's nova project, to increase our level of support for all areas of nova observation, and for general discussion of novae.
196 1260 By DEY_VAR 3 weeks 2 days ago
No new posts
Discussion of RCBs and related classes of stars that show irregular fading episodes.
58 229 By Aengus O'Fearghail 3 months ago
No new posts
Discussion for the solar observation program and also monitoring of sudden ionospheric disturbances (SIDs).
151 667 By weo 1 week 3 days ago
No new posts
Discussion of young stellar objects, pre-main sequence stars and other variable objects in the early stages of stellar evolution.
166 572 By weo 2 months ago