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Ask questions on any topic. Nothing is too simple or too complex to ask!
1063 4273 By Achim Sucker 1 day ago
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Technical support for questions about the AAVSO web site and/or forums. Report bugs here.
210 913 By BQE 1 month 2 weeks 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.
121 396 By Sebastian Otero 1 week 3 days ago
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Discussion of AAVSO-related software projects (VSX, Zapper, etc.).
169 957 By han.k 5 days 15 hours ago
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A forum to discuss variable star data analysis.
103 541 By David Benn 2 months 2 weeks ago
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Discussion of the AAVSO's visualization and analysis tool, VStar
185 1432 By David Benn 3 days 1 hour ago
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For discussion of VSX, the AAVSO Variable Star Index.
152 598 By astrosharp 5 days 3 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.

124 952 By knak 17 hours 44 minutes ago
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Please use this forum to distribute time sensitive observation alerts.
328 1584 By The_Celestial_Creole 4 days 23 hours ago
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18 103 By AAVSO_ 1 year 7 months ago
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Discuss ongoing campaigns (Alert Notices, Special Notices, etc.), announce your own projects and report interesting observations here.
460 3328 By weo 6 days 20 hours ago
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Discussion of and tips for making visual observations.
199 1187 By AAX 11 months 2 weeks ago
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Discussion of CCD, PEP and DSLR photometry.
767 5499 By jzamorano 1 week ago
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277 1739 By Robin Leadbeater 2 weeks 2 days ago
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This forum is for discussion of AAVSOnet topics including announcements, status updates, technical support and more.
316 992 By HQA 6 days 5 hours ago
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This forum is for discussion of VPHOT topics including announcements, status updates, technical support and more.
621 3231 By SGEO 3 days 1 hour ago
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This forum is for discussions of cataclysmic variable stars.
326 1136 By weo 6 days ago
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15 47 By Sebastian Otero 3 months 2 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.

46 223 By Bikeman 1 week 1 day ago
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Information on the Observation and analysis of short period pulsators such as Cepheids and RR Lyrae.

22 105 By SHA 2 weeks 3 days ago
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Discussion of eclipsing binary stars.
65 374 By Gary Shaw 1 month 1 week ago
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89 413 By Anthony 2 weeks 2 days ago
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Discussion of long period variable stars: mira's, semiregulars, etc.
161 818 By weo 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.
190 1253 By weo 3 weeks ago
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Discussion of RCBs and related classes of stars that show irregular fading episodes.
56 225 By hambsch 3 weeks 4 days ago
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Discussion for the solar observation program and also monitoring of sudden ionospheric disturbances (SIDs).
149 653 By weo 1 week 6 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.
164 570 By weo 3 weeks 6 days ago