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Ask questions on any topic. Nothing is too simple or too complex to ask!
1122 4518 By TieDyeAstronomer 1 week 2 days ago
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Technical support for questions about the AAVSO web site and/or forums. Report bugs here.
226 959 By tcalderw 23 hours 19 minutes 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 1 day ago
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Discussion of AAVSO-related software projects (VSX, Zapper, etc.).
171 968 By petefleurant 3 weeks 1 day ago
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A forum to discuss variable star data analysis.
110 565 By arimsiqueira 4 days 8 hours ago
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Discussion of the AAVSO's visualization and analysis tool, VStar
193 1474 By David Benn 3 weeks 1 day ago
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For discussion of VSX, the AAVSO Variable Star Index.
168 652 By Sebastian Otero 4 days 6 hours 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.

143 1054 By btschumy 21 hours 15 minutes ago
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Please use this forum to distribute time sensitive observation alerts.
341 1619 By Sebastian Otero 3 days 18 hours 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.
477 3622 By lbiddle 1 day 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 5746 By arx 5 days 1 hour ago
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303 1852 By scott.donnell 1 day 6 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 1 month 4 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 1 week 1 day ago
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This forum is for discussions of cataclysmic variable stars.
354 1284 By jhodge7ac 2 hours 15 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.

55 265 By tjmaccarone 42 minutes 1 second 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 5 days ago
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Discussion of eclipsing binary stars.
74 434 By Ed Wiley_WEY 3 weeks 2 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 1 week 5 days 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 57 minutes 41 seconds 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 1 week 3 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.
168 591 By hambsch 1 hour 25 minutes ago