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Ask questions on any topic. Nothing is too simple or too complex to ask!
991 4035 By spp 4 days 9 hours ago
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4 70 By hlaird 1 year ago
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Technical support for questions about the AAVSO web site and/or forums. Report bugs here.
206 902 By bestbloge4 4 days 2 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.
108 381 By Sebastian Otero 3 weeks 4 days ago
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Discussion of AAVSO-related software projects (VSX, Zapper, etc.).
149 903 By hambsch 2 days 14 hours ago
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A forum to discuss variable star data analysis.
96 500 By MMN 1 week 2 days ago
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Discussion of the AAVSO's visualization and analysis tool, VStar
163 1267 By krahling 3 weeks 2 days ago
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For discussion of VSX, the AAVSO Variable Star Index.
126 511 By Sebastian Otero 6 days 5 hours ago
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Questions, discussions and announcements related to Eggen Card Project.
8 23 By SGEO 1 year 1 month ago
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Citizen Sky questions, announcements and discussion.
8 14 By test_user2 8 months 3 weeks 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.

96 760 By gboyle 2 days 20 hours ago
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Please use this forum to distribute time sensitive observation alerts.
313 1531 By bskiff 5 days 8 hours ago
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18 103 By AAVSO_ 8 months 1 week ago
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Discuss ongoing campaigns (Alert Notices, Special Notices, etc.), announce your own projects and report interesting observations here.
435 3134 By annafpala 6 days 23 hours ago
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Discussion of and tips for making visual observations.
199 1187 By AAX 2 weeks 5 days ago
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Discussion of CCD, PEP and DSLR photometry.
713 5215 By knak 4 days 11 hours ago
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246 1652 By Robin Leadbeater 14 minutes 36 seconds ago
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This forum is for discussion of AAVSOnet topics including announcements, status updates, technical support and more.
302 948 By pbealo@comcast.net 1 day 20 hours ago
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This forum is for discussion of VPHOT topics including announcements, status updates, technical support and more.
571 3032 By pbealo@comcast.net 1 week ago
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This forum is for discussions of cataclysmic variable stars.
312 1082 By weo 2 weeks 6 days ago
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11 30 By kevinbalton 6 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.

32 168 By daveh 1 week ago
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Information on the Observation and analysis of short period pulsators such as Cepheids and RR Lyrae.

13 70 By SHA 2 weeks 3 days ago
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Discussion of eclipsing binary stars.
53 331 By shoup 5 months ago
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71 315 By SycamoreCanyon… 3 days 15 hours ago
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Discussion of long period variable stars: mira's, semiregulars, etc.
155 792 By Cledison Marco… 18 hours 19 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.
182 1236 By mrv 2 weeks 4 days ago
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Discussion of RCBs and related classes of stars that show irregular fading episodes.
55 220 By Cledison Marco… 1 month 1 week ago
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Discussion for the solar observation program and also monitoring of sudden ionospheric disturbances (SIDs).
122 546 By lward 2 weeks 3 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.
153 522 By fwalter 1 week ago