Forum Topics Posts Last post
No new posts
Ask questions on any topic. Nothing is too simple or too complex to ask!
1141 4559 By weo 34 minutes 12 seconds ago
No new posts
Technical support for questions about the AAVSO web site and/or forums. Report bugs here.
237 983 By SGEO 1 week 2 days 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 3 months 3 weeks ago
No new posts
Discussion of AAVSO-related software projects (VSX, Zapper, etc.).
172 977 By chrismlt 1 month ago
No new posts
A forum to discuss variable star data analysis.
114 575 By alschmitt 1 day 8 hours ago
No new posts
Discussion of the AAVSO's visualization and analysis tool, VStar
194 1484 By TRE 3 weeks ago
No new posts
For discussion of VSX, the AAVSO Variable Star Index.
171 661 By franco 1 month 3 weeks 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.

156 1120 By arimsiqueira 19 hours 28 minutes ago
No new posts
Please use this forum to distribute time sensitive observation alerts.
342 1623 By weo 1 month 1 week ago
No new posts
18 103 By AAVSO_ 2 years 7 months ago
No new posts
Discuss ongoing campaigns (Alert Notices, Special Notices, etc.), announce your own projects and report interesting observations here.
481 3697 By bpablo 1 day 22 hours ago
No new posts
Discussion of and tips for making visual observations.
209 1209 By weo 3 weeks 3 days ago
No new posts
Discussion of CCD, PEP and DSLR photometry.
838 5883 By dlee 13 hours 52 minutes ago
No new posts
314 1894 By bkloppenborg 17 hours 12 minutes ago
No new posts
This forum is for discussion of AAVSOnet topics including announcements, status updates, technical support and more.
333 1054 By spp 1 week 5 days ago
No new posts
This forum is for discussion of VPHOT topics including announcements, status updates, technical support and more.
690 3515 By jmsikora 2 hours 27 minutes ago
Forum Topics Posts Last post
No new posts
This forum is for discussions of cataclysmic variable stars.
363 1322 By pox 4 days 3 hours ago
No new posts
19 54 By weo 2 weeks 3 days ago
No new posts

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

61 291 By Bikeman 22 hours 25 minutes ago
No new posts

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

30 135 By SHA 4 days 2 hours ago
No new posts
Discussion of eclipsing binary stars.
77 449 By tlyster 2 weeks 3 days ago
No new posts
106 491 By tlyster 1 week 2 days ago
No new posts
Discussion of long period variable stars: mira's, semiregulars, etc.
176 855 By soi 18 hours 58 minutes 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.
200 1286 By nikola.antonov 1 month 3 weeks ago
No new posts
Discussion of RCBs and related classes of stars that show irregular fading episodes.
58 229 By Aengus O'Fearghail 11 months 3 weeks ago
No new posts
Discussion for the solar observation program and also monitoring of sudden ionospheric disturbances (SIDs).
157 690 By 1970maurizio 1 week 2 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.
171 600 By pox 4 days 3 hours ago