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Ask questions on any topic. Nothing is too simple or too complex to ask!
1064 4278 By kathyspirer 1 day 18 hours 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 6 days ago
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Discussion of AAVSO-related software projects (VSX, Zapper, etc.).
169 959 By han.k 22 hours 43 minutes ago
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A forum to discuss variable star data analysis.
104 546 By MESaavso 1 day 3 hours ago
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Discussion of the AAVSO's visualization and analysis tool, VStar
185 1432 By David Benn 6 days 4 hours ago
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For discussion of VSX, the AAVSO Variable Star Index.
153 599 By weo 22 hours 9 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.

124 953 By bskiff 2 days 23 hours ago
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Please use this forum to distribute time sensitive observation alerts.
328 1584 By The_Celestial_Creole 1 week 1 day 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 1 week 3 days ago
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Discussion of and tips for making visual observations.
200 1188 By weo 21 hours 44 minutes ago
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Discussion of CCD, PEP and DSLR photometry.
768 5500 By weo 21 hours 41 minutes ago
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281 1748 By Robin Leadbeater 3 hours 53 minutes ago
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This forum is for discussion of AAVSOnet topics including announcements, status updates, technical support and more.
316 993 By Pradip 2 days 10 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 6 days 4 hours ago
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This forum is for discussions of cataclysmic variable stars.
328 1140 By pac2soton@gmail.com 9 hours 29 minutes ago
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16 48 By weo 21 hours 33 minutes 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 4 days ago
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Information on the Observation and analysis of short period pulsators such as Cepheids and RR Lyrae.

23 106 By weo 21 hours 31 minutes ago
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Discussion of eclipsing binary stars.
66 375 By weo 21 hours 28 minutes ago
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90 415 By mikeprimm 20 hours 37 minutes ago
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Discussion of long period variable stars: mira's, semiregulars, etc.
162 819 By weo 21 hours 21 minutes 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.
191 1254 By weo 21 hours 19 minutes ago
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Discussion of RCBs and related classes of stars that show irregular fading episodes.
57 227 By spp 19 hours 23 minutes ago
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Discussion for the solar observation program and also monitoring of sudden ionospheric disturbances (SIDs).
149 653 By weo 2 weeks 2 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.
165 571 By weo 21 hours 16 minutes ago