Skip to main content


  Forum Topics Posts Last post
No new
Ask questions on any topic. Nothing is too simple or too complex to ask!
2928 Beating waveform...
by pbenni
1 day 11 hours ago
No new
Technical support for questions about the AAVSO web site and/or forums. Report bugs here.
630 Problem with CHET
by pukemaru
02/20/2018 - 16:21
No new
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.
318 Fotometria de TYC...
by Davidjau
01/10/2018 - 07:34
No new
Discussion of AAVSO-related software projects (VSX, Zapper, etc.).
599 AAVSO Target Tool...
by Neosphere
02/19/2018 - 02:14
No new
A forum to discuss variable star data analysis.
345 Help with Data...
by aaronpawlak
10 hours 39 min ago
No new
Discussion of the AAVSO's visualization and analysis tool, VStar
600 Contour Plots...
by David Benn
02/08/2018 - 07:44
No new
For discussion of VSX, the AAVSO Variable Star Index.
175 What about quasars?
by libmar96
02/13/2018 - 15:52
No new
Questions, discussions and announcements related to Eggen Card Project.
16 Eggen Card...
by jcrast
08/29/2017 - 14:38
No new
Citizen Sky questions, announcements and discussion.
13 Criticism of...
by M.Saladyga
05/16/2014 - 13:31
The AAVSO Governance forum is visible only to AAVSO members. CHOICE forums are visible only to class participants.
  Forum Topics Posts Last post
  Forum Topics Posts Last post
No new
Please use this forum to distribute time sensitive observation alerts.
757 PNV J17244011...
by SPK
3 hours 48 min ago
No new
79 Student projects?
by B.P.Vietje
12/22/2017 - 17:59
No new
Discuss ongoing campaigns (Alert Notices, Special Notices, etc.), announce your own projects and report interesting observations here.
2165 February 2018 b...
by cdk
3 hours 11 min ago
No new
Discussion of and tips for making visual observations.
945 Visual observing...
12/16/2017 - 12:23
No new
Discussion of CCD, PEP and DSLR photometry.
3381 Sloan Filters -...
by ldj
11 hours 24 min ago
No new
1033 Spectroscopy -...
by FJQ
5 hours 17 min ago
No new
This forum is for discussion of AAVSOnet topics including announcements, status updates, technical support and more.
474 Recent AAVSOnet...
by HQA
02/10/2018 - 10:11
No new
This forum is for discussion of VPHOT topics including announcements, status updates, technical support and more.
1835 Can't upload images
by stensil
01/16/2018 - 02:44
  Forum Topics Posts Last post
No new
This forum is for discussions of cataclysmic variable stars.
730 SN 2018pv in NGC...
by Deconinck Michel
02/14/2018 - 05:36
No new
Discussion of eclipsing binary stars.
96 EB's With...
by TCB168
02/06/2018 - 17:56
No new
59 Exoplanet...
by BSJ
01/31/2018 - 15:49
No new
Discussion of long period variable stars: mira's, semiregulars, etc.
540 Strange coincidence
by conan
02/20/2018 - 20:54
No new
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.
883 PNV J13532700...
by KBJ
02/18/2018 - 01:33
No new
Discussion of RCBs and related classes of stars that show irregular fading episodes.
194 V487 Vel fading
by Andrew Pearce
11/21/2017 - 19:53
No new
Discussion for the solar observation program and also monitoring of sudden ionospheric disturbances (SIDs).
365 New Solar...
by Deconinck Michel
02/19/2018 - 05:14
No new
Discussion of young stellar objects, pre-main sequence stars and other variable objects in the early stages of stellar evolution.
303 fade of UX Ori
by BBI
02/17/2018 - 15:43
New posts
No new posts
AAVSO 49 Bay State Rd. Cambridge, MA 02138 617-354-0484