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Ask questions on any topic. Nothing is too simple or too complex to ask!
991 4035 By spp 5 days 1 hour 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 17 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.).
150 904 By Nick Hardy 6 hours 25 minutes ago
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A forum to discuss variable star data analysis.
96 500 By MMN 1 week 3 days ago
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Discussion of the AAVSO's visualization and analysis tool, VStar
163 1267 By krahling 3 weeks 3 days ago
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For discussion of VSX, the AAVSO Variable Star Index.
126 511 By Sebastian Otero 6 days 20 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 3 days 12 hours ago
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Please use this forum to distribute time sensitive observation alerts.
313 1531 By bskiff 5 days 23 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.
437 3138 By weo 5 hours 38 minutes ago
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Discussion of and tips for making visual observations.
199 1187 By AAX 2 weeks 6 days ago
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Discussion of CCD, PEP and DSLR photometry.
714 5218 By Elisabeth Atems 3 hours 31 minutes ago
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246 1657 By pablotwa 3 hours 36 minutes 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 2 days 12 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 1 day ago
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This forum is for discussions of cataclysmic variable stars.
313 1084 By weo 6 hours 14 minutes 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 1 day 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 4 days ago
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Discussion of eclipsing binary stars.
53 331 By shoup 5 months ago
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72 316 By weo 5 hours 36 minutes ago
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Discussion of long period variable stars: mira's, semiregulars, etc.
155 792 By Cledison Marco… 1 day 9 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.
182 1236 By mrv 2 weeks 5 days ago
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Discussion of RCBs and related classes of stars that show irregular fading episodes.
56 221 By CGCA 4 hours 19 minutes 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 4 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.
153 523 By weo 6 hours 48 minutes ago