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Ask questions on any topic. Nothing is too simple or too complex to ask!
1124 4520 By coliac 6 hours 39 minutes ago
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Technical support for questions about the AAVSO web site and/or forums. Report bugs here.
226 959 By tcalderw 3 days 16 hours 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 1 week 3 days ago
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Discussion of AAVSO-related software projects (VSX, Zapper, etc.).
171 968 By petefleurant 3 weeks 3 days ago
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A forum to discuss variable star data analysis.
110 565 By arimsiqueira 1 week ago
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Discussion of the AAVSO's visualization and analysis tool, VStar
193 1474 By David Benn 3 weeks 4 days ago
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For discussion of VSX, the AAVSO Variable Star Index.
168 654 By Sebastian Otero 2 days ago
Forum Topics Posts Last post
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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.

143 1054 By btschumy 3 days 14 hours ago
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Please use this forum to distribute time sensitive observation alerts.
341 1619 By Sebastian Otero 6 days 12 hours ago
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18 103 By AAVSO_ 2 years 4 months ago
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Discuss ongoing campaigns (Alert Notices, Special Notices, etc.), announce your own projects and report interesting observations here.
477 3623 By rth 2 days 16 hours ago
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Discussion of and tips for making visual observations.
207 1207 By mdrapp 1 month 3 weeks ago
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Discussion of CCD, PEP and DSLR photometry.
816 5747 By weo 1 day 15 hours ago
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303 1852 By scott.donnell 3 days 23 hours ago
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This forum is for discussion of AAVSOnet topics including announcements, status updates, technical support and more.
331 1044 By SGEO 2 months ago
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This forum is for discussion of VPHOT topics including announcements, status updates, technical support and more.
661 3419 By icclouds 19 hours 32 minutes ago
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This forum is for discussions of cataclysmic variable stars.
354 1288 By cwt 1 day 13 hours ago
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16 51 By rachlin 4 months 1 week 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.

55 275 By tjmaccarone 22 hours 59 minutes ago
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Information on the Observation and analysis of short period pulsators such as Cepheids and RR Lyrae.

28 129 By SHA 3 weeks ago
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Discussion of eclipsing binary stars.
74 434 By Ed Wiley_WEY 3 weeks 4 days ago
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104 489 By weo 1 month ago
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Discussion of long period variable stars: mira's, semiregulars, etc.
172 851 By soi 2 weeks 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.
199 1277 By mrv 2 days 18 hours ago
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Discussion of RCBs and related classes of stars that show irregular fading episodes.
58 229 By Aengus O'Fearghail 8 months 1 week ago
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Discussion for the solar observation program and also monitoring of sudden ionospheric disturbances (SIDs).
154 679 By weo 1 week 5 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.
168 592 By bskiff 2 days 14 hours ago