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!
3875 Website Transition
by Sebastian Otero
11/18/2020 - 12:29
No new
65 Planning AAVSO's...
by mll
09/27/2020 - 22:16
No new
Technical support for questions about the AAVSO web site and/or forums. Report bugs here.
740 MyNewsFlash e...
by wbs
11/27/2020 - 12:14
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.
368 Charla en español...
by Juan Manzorro
10/29/2020 - 03:10
No new
Discussion of AAVSO-related software projects (VSX, Zapper, etc.).
869 Transform Apply...
by HBB
09/28/2020 - 05:06
No new
A forum to discuss variable star data analysis.
512 ASASSN data fails...
by johnadam
11/05/2020 - 01:47
No new
Discussion of the AAVSO's visualization and analysis tool, VStar
1147 Can't Start VStar...
by David Benn
11/20/2020 - 07:25
No new
For discussion of VSX, the AAVSO Variable Star Index.
439 Spectral Type in...
by clkotnik
1 day 1 hour ago
No new
Questions, discussions and announcements related to Eggen Card Project.
20 Eggen...
by jcrast
01/05/2019 - 12:38
No new
Citizen Sky questions, announcements and discussion.
13 n/a
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
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.
400 QHY600 tests
by gboyle
11/23/2020 - 11:38
No new
Please use this forum to distribute time sensitive observation alerts.
1408 Possible nova ...
by Sebastian Otero
1 day 14 hours ago
No new
110 Raw files for...
by B.P.Vietje
05/10/2020 - 21:10
No new
Discuss ongoing campaigns (Alert Notices, Special Notices, etc.), announce your own projects and report interesting observations here.
2831 b Per anticipated...
by cdk
1 day 12 hours ago
No new
Discussion of and tips for making visual observations.
1170 Beginner first...
by roirodriguez
17 hours 11 min ago
No new
Discussion of CCD, PEP and DSLR photometry.
4646 DSLR photometry-...
by kevinru
1 day 23 hours ago
No new
1426 BAV Magazine...
by ErnstPollmann
6 hours 20 min ago
No new
This forum is for discussion of AAVSOnet topics including announcements, status updates, technical support and more.
849 BSM_Berry2...
by MZK
11/20/2020 - 11:48
No new
This forum is for discussion of VPHOT topics including announcements, status updates, technical support and more.
2592 VPhot downloading
by MZK
16 hours 39 min ago
  Forum Topics Posts Last post
No new
This forum is for discussions of cataclysmic variable stars.
1004 VY Aqr in outburst
by hambsch
4 hours 39 min ago
No new
15 2020 data-mining...
by clittlefield
11/13/2020 - 15:34
No new
Information on the observation and analysis of stars and other objects that are sources of x-rays and gamma rays.
62 Observations of...
by Bikeman
11/11/2020 - 05:35
No new
Information on the Observation and analysis of short period pulsators such as Cepheids and RR Lyrae.
24 Period Luminosity...
11/22/2020 - 13:37
No new
Discussion of eclipsing binary stars.
269 Updated...
by VMT
10/18/2020 - 19:36
No new
200 June 2020...
by jerry.hubbell
10/31/2020 - 06:28
No new
Discussion of long period variable stars: mira's, semiregulars, etc.
763 AAVSO Bulletin ...
by DNO
11/15/2020 - 16:17
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.
1216 Possible nova ...
by SPK
11/29/2020 - 03:53
No new
Discussion of RCBs and related classes of stars that show irregular fading episodes.
218 FH Sct: deep fading
by SPK
02/28/2020 - 16:02
No new
Discussion for the solar observation program and also monitoring of sudden ionospheric disturbances (SIDs).
482 Looking forward...
1 day 3 hours ago
No new
Discussion of young stellar objects, pre-main sequence stars and other variable objects in the early stages of stellar evolution.
407 Northern T Tau...
by weo
11/12/2020 - 22:14
New posts
No new posts
AAVSO 49 Bay State Rd. Cambridge, MA 02138 617-354-0484