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Ask questions on any topic. Nothing is too simple or too complex to ask!
1085 4361 By kathyspirer 1 week 1 day ago
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Technical support for questions about the AAVSO web site and/or forums. Report bugs here.
216 938 By Calculad 2 days 17 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.
126 405 By Sebastian Otero 1 week ago
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Discussion of AAVSO-related software projects (VSX, Zapper, etc.).
170 964 By Aliciasmith 1 week 1 day ago
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A forum to discuss variable star data analysis.
105 558 By daisy 3 weeks 5 days ago
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Discussion of the AAVSO's visualization and analysis tool, VStar
188 1441 By David Benn 1 week 6 days ago
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For discussion of VSX, the AAVSO Variable Star Index.
158 619 By clkotnik 5 days 22 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.

131 996 By Calculad 4 days 21 hours ago
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Please use this forum to distribute time sensitive observation alerts.
334 1596 By Mohammad Odeh 5 days 7 hours ago
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18 103 By AAVSO_ 1 year 10 months ago
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Discuss ongoing campaigns (Alert Notices, Special Notices, etc.), announce your own projects and report interesting observations here.
463 3363 By garnavich 21 hours 47 minutes ago
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Discussion of and tips for making visual observations.
202 1191 By weo 3 weeks 1 day ago
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Discussion of CCD, PEP and DSLR photometry.
787 5587 By SGEO 4 minutes 26 seconds ago
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288 1772 By wbailey42 22 hours 29 minutes ago
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This forum is for discussion of AAVSOnet topics including announcements, status updates, technical support and more.
326 1018 By Degen1103 2 days 7 hours ago
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This forum is for discussion of VPHOT topics including announcements, status updates, technical support and more.
628 3265 By Calculad 3 weeks 2 days ago
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This forum is for discussions of cataclysmic variable stars.
338 1171 By garnavich 21 hours 49 minutes ago
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16 48 By weo 3 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.

48 228 By Bikeman 4 days 3 hours ago
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Information on the Observation and analysis of short period pulsators such as Cepheids and RR Lyrae.

26 117 By gilchrist.alle… 3 days 14 hours ago
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Discussion of eclipsing binary stars.
69 384 By kevinbalton 1 week 1 day ago
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94 440 By Anthony 6 hours 11 minutes ago
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Discussion of long period variable stars: mira's, semiregulars, etc.
164 826 By soi 1 month 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.
196 1260 By DEY_VAR 2 weeks 6 days ago
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Discussion of RCBs and related classes of stars that show irregular fading episodes.
58 229 By Aengus O'Fearghail 3 months ago
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Discussion for the solar observation program and also monitoring of sudden ionospheric disturbances (SIDs).
151 667 By weo 1 week 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.
166 572 By weo 2 months ago