Forum Topics Posts Last post
No new posts
Ask questions on any topic. Nothing is too simple or too complex to ask!
1124 4520 By coliac 5 days 18 hours ago
No new posts
Technical support for questions about the AAVSO web site and/or forums. Report bugs here.
227 963 By PYG 4 days 13 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.
132 417 By RGN 2 weeks 2 days ago
No new posts
Discussion of AAVSO-related software projects (VSX, Zapper, etc.).
171 968 By petefleurant 1 month ago
No new posts
A forum to discuss variable star data analysis.
111 568 By chrismlt 5 days 9 hours ago
No new posts
Discussion of the AAVSO's visualization and analysis tool, VStar
193 1474 By David Benn 1 month ago
No new posts
For discussion of VSX, the AAVSO Variable Star Index.
170 658 By SKA 4 days 12 hours 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.

144 1058 By Calculad 2 days 13 hours ago
No new posts
Please use this forum to distribute time sensitive observation alerts.
341 1619 By Sebastian Otero 1 week 5 days ago
No new posts
18 103 By AAVSO_ 2 years 4 months ago
No new posts
Discuss ongoing campaigns (Alert Notices, Special Notices, etc.), announce your own projects and report interesting observations here.
479 3632 By ccynamon 2 days 13 hours ago
No new posts
Discussion of and tips for making visual observations.
207 1207 By mdrapp 2 months ago
No new posts
Discussion of CCD, PEP and DSLR photometry.
817 5755 By arx 1 day 6 hours ago
No new posts
304 1859 By scott.donnell 1 day 11 hours ago
No new posts
This forum is for discussion of AAVSOnet topics including announcements, status updates, technical support and more.
331 1044 By SGEO 2 months 1 week ago
No new posts
This forum is for discussion of VPHOT topics including announcements, status updates, technical support and more.
663 3427 By 1eboeneker 1 day 13 hours ago
Forum Topics Posts Last post
No new posts
This forum is for discussions of cataclysmic variable stars.
355 1295 By tjmaccarone 6 hours 39 minutes ago
No new posts
16 51 By rachlin 4 months 2 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.

55 275 By tjmaccarone 6 days 11 hours ago
No new posts

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

28 129 By SHA 3 weeks 6 days ago
No new posts
Discussion of eclipsing binary stars.
75 435 By Calculad 7 hours 42 minutes ago
No new posts
104 489 By weo 1 month 1 week ago
No new posts
Discussion of long period variable stars: mira's, semiregulars, etc.
172 851 By soi 2 weeks 6 days 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.
199 1277 By mrv 1 week 1 day ago
No new posts
Discussion of RCBs and related classes of stars that show irregular fading episodes.
58 229 By Aengus O'Fearghail 8 months 2 weeks ago
No new posts
Discussion for the solar observation program and also monitoring of sudden ionospheric disturbances (SIDs).
154 679 By weo 2 weeks 4 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.
168 596 By hambsch 2 days 8 hours ago