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Ask questions on any topic. Nothing is too simple or too complex to ask!
1144 4568 By Scott Young 5 hours 52 minutes ago
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Technical support for questions about the AAVSO web site and/or forums. Report bugs here.
238 984 By Degen1103 19 hours 18 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 4 months ago
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Discussion of AAVSO-related software projects (VSX, Zapper, etc.).
172 977 By chrismlt 1 month 1 week ago
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A forum to discuss variable star data analysis.
116 580 By clkotnik 6 hours 59 minutes ago
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Discussion of the AAVSO's visualization and analysis tool, VStar
194 1484 By TRE 4 weeks ago
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For discussion of VSX, the AAVSO Variable Star Index.
175 670 By franco 40 minutes 27 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.

156 1122 By arimsiqueira 5 days 14 hours ago
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Please use this forum to distribute time sensitive observation alerts.
342 1623 By weo 1 month 2 weeks ago
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18 103 By AAVSO_ 2 years 7 months ago
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Discuss ongoing campaigns (Alert Notices, Special Notices, etc.), announce your own projects and report interesting observations here.
481 3697 By bpablo 1 week 1 day ago
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Discussion of and tips for making visual observations.
209 1209 By weo 4 weeks 2 days ago
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Discussion of CCD, PEP and DSLR photometry.
839 5890 By omedinaw 11 hours 6 minutes ago
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314 1894 By bkloppenborg 1 week 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 15 hours 1 minute ago
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This forum is for discussion of VPHOT topics including announcements, status updates, technical support and more.
691 3517 By Degen1103 20 hours 44 minutes ago
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This forum is for discussions of cataclysmic variable stars.
364 1323 By tlyster 1 day 12 hours ago
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19 54 By weo 3 weeks 3 days 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.

61 291 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.

30 135 By SHA 1 week 3 days ago
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Discussion of eclipsing binary stars.
77 449 By tlyster 3 weeks 3 days ago
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107 495 By danigarsiagarsia476 2 days 19 hours ago
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Discussion of long period variable stars: mira's, semiregulars, etc.
176 859 By Degen1103 2 days 17 hours 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 1286 By nikola.antonov 2 months 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 ago
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Discussion for the solar observation program and also monitoring of sudden ionospheric disturbances (SIDs).
157 691 By weo 1 day 11 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.
171 600 By pox 1 week 3 days ago