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Ask questions on any topic. Nothing is too simple or too complex to ask!
1013 4095 By easton whatsapp 7 hours 46 minutes ago
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4 70 By hlaird 1 year 3 months ago
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Technical support for questions about the AAVSO web site and/or forums. Report bugs here.
208 908 By divye.ruhela 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.
111 386 By Sebastian Otero 2 weeks 5 days ago
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Discussion of AAVSO-related software projects (VSX, Zapper, etc.).
151 922 By mickjoff 1 week 3 days ago
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A forum to discuss variable star data analysis.
98 502 By easton whatsapp 7 hours 45 minutes ago
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Discussion of the AAVSO's visualization and analysis tool, VStar
166 1279 By easton whatsapp 7 hours 44 minutes ago
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For discussion of VSX, the AAVSO Variable Star Index.
131 532 By Degen1103 5 days 2 hours ago
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Questions, discussions and announcements related to Eggen Card Project.
9 24 By easton whatsapp 7 hours 41 minutes ago
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Citizen Sky questions, announcements and discussion.
9 15 By easton whatsapp 7 hours 43 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.

107 821 By Mark Blackford 5 hours 7 minutes ago
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Please use this forum to distribute time sensitive observation alerts.
317 1544 By hambsch 6 days 15 hours ago
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18 103 By AAVSO_ 11 months ago
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Discuss ongoing campaigns (Alert Notices, Special Notices, etc.), announce your own projects and report interesting observations here.
443 3177 By cdk 15 hours 10 minutes ago
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Discussion of and tips for making visual observations.
199 1187 By AAX 3 months 1 week ago
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Discussion of CCD, PEP and DSLR photometry.
733 5351 By msheald 6 days 7 hours ago
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257 1678 By TieDyeAstronomer 13 hours 22 minutes ago
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This forum is for discussion of AAVSOnet topics including announcements, status updates, technical support and more.
304 950 By pbealo@comcast.net 3 days 17 hours ago
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This forum is for discussion of VPHOT topics including announcements, status updates, technical support and more.
582 3088 By nfbastro 2 weeks 4 days ago
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This forum is for discussions of cataclysmic variable stars.
314 1088 By weo 1 month ago
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11 30 By kevinbalton 9 months 1 week 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.

36 179 By PYG 4 days 18 hours ago
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Information on the Observation and analysis of short period pulsators such as Cepheids and RR Lyrae.

15 81 By weo 2 months 2 weeks ago
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Discussion of eclipsing binary stars.
54 341 By darrell.lee2010 2 days 23 hours ago
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72 319 By rbrtgmn 1 week 3 days ago
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Discussion of long period variable stars: mira's, semiregulars, etc.
157 796 By weo 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.
183 1238 By Andrew Pearce 1 month 3 weeks ago
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Discussion of RCBs and related classes of stars that show irregular fading episodes.
56 223 By hambsch 2 months 3 weeks ago
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Discussion for the solar observation program and also monitoring of sudden ionospheric disturbances (SIDs).
124 555 By lward 1 week 5 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.
154 526 By fwalter 1 month 3 weeks ago