Forum Topics Posts Last post
No new posts
Ask questions on any topic. Nothing is too simple or too complex to ask!
961 3927 By kathyspirer 6 hours 42 minutes ago
No new posts
4 70 By hlaird 5 months 2 weeks ago
No new posts
Technical support for questions about the AAVSO web site and/or forums. Report bugs here.
191 857 By BSJ 2 hours 1 minute 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.
101 374 By Sebastian Otero 2 weeks ago
No new posts
Discussion of AAVSO-related software projects (VSX, Zapper, etc.).
142 883 By lxdavi55 1 week ago
No new posts
A forum to discuss variable star data analysis.
92 485 By sabichette 4 weeks ago
No new posts
Discussion of the AAVSO's visualization and analysis tool, VStar
151 1182 By BSJ 2 hours 12 minutes ago
No new posts
For discussion of VSX, the AAVSO Variable Star Index.
120 502 By Sebastian Otero 1 month ago
No new posts
Questions, discussions and announcements related to Eggen Card Project.
8 23 By SGEO 6 months 2 weeks ago
No new posts
Citizen Sky questions, announcements and discussion.
8 14 By test_user2 1 month 2 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.

67 604 By jamesphamilton 2 days 3 hours ago
No new posts
Please use this forum to distribute time sensitive observation alerts.
307 1502 By dks 1 month 1 week ago
No new posts
18 103 By AAVSO_ 1 month ago
No new posts
Discuss ongoing campaigns (Alert Notices, Special Notices, etc.), announce your own projects and report interesting observations here.
420 2983 By JBD 3 days ago
No new posts
Discussion of and tips for making visual observations.
197 1182 By ajc 3 weeks 2 days ago
No new posts
Discussion of CCD, PEP and DSLR photometry.
672 5006 By PieterVuylsteke 58 minutes 54 seconds ago
No new posts
232 1575 By ErnstPollmann 1 month 1 week ago
No new posts
This forum is for discussion of AAVSOnet topics including announcements, status updates, technical support and more.
289 906 By HQA 3 days 10 hours ago
No new posts
This forum is for discussion of VPHOT topics including announcements, status updates, technical support and more.
559 2955 By MZK 1 day 7 hours ago
Forum Topics Posts Last post
No new posts
This forum is for discussions of cataclysmic variable stars.
306 1065 By annafpala 4 weeks 2 days ago
No new posts
10 29 By YPFA 1 week ago
No new posts

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

18 114 By tjmaccarone 5 days 22 hours ago
No new posts

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

9 34 By Bernhard 4 months ago
No new posts
Discussion of eclipsing binary stars.
47 293 By bpablo 6 months 1 week ago
No new posts
60 264 By Gary Shaw 2 hours 16 minutes ago
No new posts
Discussion of long period variable stars: mira's, semiregulars, etc.
148 782 By Cledison Marco… 3 weeks 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.
180 1227 By FRF 1 month 1 week ago
No new posts
Discussion of RCBs and related classes of stars that show irregular fading episodes.
54 219 By MDJ 9 months 1 week ago
No new posts
Discussion for the solar observation program and also monitoring of sudden ionospheric disturbances (SIDs).
120 537 By lward 1 week 5 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.
139 445 By hhu 3 weeks 3 days ago