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Ask questions on any topic. Nothing is too simple or too complex to ask!
1122 4518 By TieDyeAstronomer 5 days 11 hours ago
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Technical support for questions about the AAVSO web site and/or forums. Report bugs here.
226 958 By bkloppenborg 1 week 2 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 days 21 hours ago
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Discussion of AAVSO-related software projects (VSX, Zapper, etc.).
171 968 By petefleurant 2 weeks 3 days ago
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A forum to discuss variable star data analysis.
109 564 By arx 1 month 2 weeks ago
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Discussion of the AAVSO's visualization and analysis tool, VStar
193 1474 By David Benn 2 weeks 4 days ago
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For discussion of VSX, the AAVSO Variable Star Index.
168 651 By franco 36 minutes 22 seconds 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.

142 1051 By Ed Wiley_WEY 2 weeks 3 days ago
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Please use this forum to distribute time sensitive observation alerts.
340 1618 By weo 1 week ago
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18 103 By AAVSO_ 2 years 3 months ago
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Discuss ongoing campaigns (Alert Notices, Special Notices, etc.), announce your own projects and report interesting observations here.
476 3612 By weo 13 hours 43 minutes ago
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Discussion of and tips for making visual observations.
207 1207 By mdrapp 1 month 2 weeks ago
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Discussion of CCD, PEP and DSLR photometry.
816 5746 By arx 15 hours 51 minutes ago
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302 1851 By scott.donnell 1 week 1 day 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 1 month 3 weeks ago
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This forum is for discussion of VPHOT topics including announcements, status updates, technical support and more.
660 3418 By Calculad 3 days 15 hours ago
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This forum is for discussions of cataclysmic variable stars.
354 1281 By weo 13 hours 41 minutes ago
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16 51 By rachlin 4 months 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.

55 250 By Degen1103 7 hours 36 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 2 weeks ago
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Discussion of eclipsing binary stars.
74 434 By Ed Wiley_WEY 2 weeks 4 days ago
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104 489 By weo 3 weeks 5 days ago
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Discussion of long period variable stars: mira's, semiregulars, etc.
172 851 By soi 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.
198 1275 By weo 1 week 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 ago
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Discussion for the solar observation program and also monitoring of sudden ionospheric disturbances (SIDs).
154 679 By weo 5 days 17 hours 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.
168 581 By weo 16 hours 35 minutes ago