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Ask questions on any topic. Nothing is too simple or too complex to ask!
1147 4577 By Sebastian Otero 1 week ago
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Technical support for questions about the AAVSO web site and/or forums. Report bugs here.
242 1001 By bmansdahl@gmail.com 1 day 18 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 5 months ago
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Discussion of AAVSO-related software projects (VSX, Zapper, etc.).
174 982 By Mark Blackford 6 days 15 hours ago
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A forum to discuss variable star data analysis.
117 583 By clkotnik 1 week 4 days ago
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Discussion of the AAVSO's visualization and analysis tool, VStar
195 1487 By franco 1 day 1 hour ago
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For discussion of VSX, the AAVSO Variable Star Index.
178 679 By franco 5 hours 3 minutes 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.

160 1140 By Darren 5 days 10 hours ago
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Please use this forum to distribute time sensitive observation alerts.
343 1631 By weo 4 days 2 hours ago
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18 103 By AAVSO_ 2 years 8 months ago
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Discuss ongoing campaigns (Alert Notices, Special Notices, etc.), announce your own projects and report interesting observations here.
481 3701 By tlyster 1 week 1 day ago
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Discussion of and tips for making visual observations.
212 1213 By weo 1 day 5 hours ago
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Discussion of CCD, PEP and DSLR photometry.
845 5917 By Andrew Pearce 1 day 15 hours ago
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316 1896 By scott.donnell 2 days 4 hours ago
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This forum is for discussion of AAVSOnet topics including announcements, status updates, technical support and more.
336 1068 By tlyster 4 weeks 1 day ago
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This forum is for discussion of VPHOT topics including announcements, status updates, technical support and more.
701 3570 By TLD 1 day 1 hour ago
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This forum is for discussions of cataclysmic variable stars.
367 1339 By cwt 5 hours 20 minutes ago
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19 54 By weo 1 month 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.

65 298 By Bikeman 1 week ago
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Information on the Observation and analysis of short period pulsators such as Cepheids and RR Lyrae.

31 141 By TRE 5 days 20 hours ago
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Discussion of eclipsing binary stars.
77 449 By tlyster 1 month 3 weeks ago
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109 505 By Gary Shaw 3 days 10 hours ago
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Discussion of long period variable stars: mira's, semiregulars, etc.
177 861 By soi 3 weeks 4 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.
200 1287 By CrossoverManiac 1 week 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 1 year 1 month ago
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Discussion for the solar observation program and also monitoring of sudden ionospheric disturbances (SIDs).
157 692 By weo 5 days 3 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.
173 603 By BPO 1 week 5 days ago