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Ask questions on any topic. Nothing is too simple or too complex to ask!
1134 4550 By Alan Webb 14 hours 44 minutes ago
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Technical support for questions about the AAVSO web site and/or forums. Report bugs here.
235 980 By Degen1103 1 week 3 days ago
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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 1 week ago
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Discussion of AAVSO-related software projects (VSX, Zapper, etc.).
172 977 By chrismlt 2 weeks 2 days ago
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A forum to discuss variable star data analysis.
112 572 By beka 1 month 4 weeks ago
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Discussion of the AAVSO's visualization and analysis tool, VStar
194 1484 By TRE 1 day 12 hours ago
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For discussion of VSX, the AAVSO Variable Star Index.
171 661 By franco 1 month ago
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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.

154 1103 By bskiff 5 days 16 hours ago
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Please use this forum to distribute time sensitive observation alerts.
342 1623 By weo 2 weeks 6 days ago
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18 103 By AAVSO_ 2 years 7 months ago
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Discuss ongoing campaigns (Alert Notices, Special Notices, etc.), announce your own projects and report interesting observations here.
481 3691 By weo 1 week 4 days ago
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Discussion of and tips for making visual observations.
209 1209 By weo 4 days 1 hour ago
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Discussion of CCD, PEP and DSLR photometry.
833 5862 By arx 1 day 20 hours ago
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311 1887 By bkloppenborg 2 weeks 4 days ago
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This forum is for discussion of AAVSOnet topics including announcements, status updates, technical support and more.
333 1049 By HQA 1 month 1 week ago
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This forum is for discussion of VPHOT topics including announcements, status updates, technical support and more.
687 3508 By SGEO 20 hours 24 minutes ago
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This forum is for discussions of cataclysmic variable stars.
360 1315 By Degen1103 1 week 3 days ago
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18 53 By weo 4 days 23 hours ago
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Information on the observation and analysis of stars and other objects that are sources of x-rays and gamma rays.

59 289 By Bikeman 2 weeks 1 day ago
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Information on the Observation and analysis of short period pulsators such as Cepheids and RR Lyrae.

29 134 By SHA 1 week 6 days ago
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Discussion of eclipsing binary stars.
76 448 By ccynamon 1 day 6 hours ago
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105 490 By SycamoreCanyon… 2 months ago
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Discussion of long period variable stars: mira's, semiregulars, etc.
172 851 By soi 3 months 1 week ago
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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 ago
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Discussion of RCBs and related classes of stars that show irregular fading episodes.
58 229 By Aengus O'Fearghail 11 months ago
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Discussion for the solar observation program and also monitoring of sudden ionospheric disturbances (SIDs).
155 686 By weo 1 week 4 days ago
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Discussion of young stellar objects, pre-main sequence stars and other variable objects in the early stages of stellar evolution.
169 598 By TRE 2 weeks 3 days ago