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Ask questions on any topic. Nothing is too simple or too complex to ask!
1000 4074 By nfbastro 4 days 12 hours ago
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4 70 By hlaird 1 year 2 months ago
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Technical support for questions about the AAVSO web site and/or forums. Report bugs here.
207 903 By TRE 1 week 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.
109 384 By Mesarthim 2 weeks 3 days ago
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Discussion of AAVSO-related software projects (VSX, Zapper, etc.).
150 912 By blackhaz 1 week 4 days ago
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A forum to discuss variable star data analysis.
97 501 By DEY_VAR 3 weeks 1 day ago
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Discussion of the AAVSO's visualization and analysis tool, VStar
163 1272 By David Benn 1 week 2 days ago
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For discussion of VSX, the AAVSO Variable Star Index.
127 515 By DEY_VAR 2 weeks 3 days ago
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Questions, discussions and announcements related to Eggen Card Project.
8 23 By SGEO 1 year 2 months ago
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Citizen Sky questions, announcements and discussion.
8 14 By test_user2 9 months 4 weeks 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.

99 780 By Patrick Kavanagh 1 day 13 hours ago
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Please use this forum to distribute time sensitive observation alerts.
315 1533 By SPK 2 days 2 hours ago
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18 103 By AAVSO_ 9 months 2 weeks ago
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Discuss ongoing campaigns (Alert Notices, Special Notices, etc.), announce your own projects and report interesting observations here.
439 3153 By weo 6 days 19 hours ago
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Discussion of and tips for making visual observations.
199 1187 By AAX 1 month 3 weeks ago
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Discussion of CCD, PEP and DSLR photometry.
723 5301 By CrossoverManiac 3 days 20 hours ago
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248 1641 By Robin Leadbeater 4 days 3 hours ago
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This forum is for discussion of AAVSOnet topics including announcements, status updates, technical support and more.
302 948 By pbealo@comcast.net 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.
578 3063 By darrell.lee2010 1 day 18 hours ago
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This forum is for discussions of cataclysmic variable stars.
314 1087 By SPK 2 days 2 hours ago
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11 30 By kevinbalton 7 months 3 weeks 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.

32 168 By daveh 1 month 1 week ago
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Information on the Observation and analysis of short period pulsators such as Cepheids and RR Lyrae.

15 81 By weo 4 weeks ago
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Discussion of eclipsing binary stars.
53 331 By shoup 6 months ago
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72 318 By SycamoreCanyon… 1 month ago
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Discussion of long period variable stars: mira's, semiregulars, etc.
155 792 By Cledison Marco… 1 month 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.
183 1238 By Andrew Pearce 5 days 11 hours ago
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Discussion of RCBs and related classes of stars that show irregular fading episodes.
56 223 By hambsch 1 month ago
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Discussion for the solar observation program and also monitoring of sudden ionospheric disturbances (SIDs).
122 547 By lward 2 weeks 1 day 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.
154 526 By fwalter 6 days 15 hours ago