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Ask questions on any topic. Nothing is too simple or too complex to ask!
895 3776 By pbenni 1 minute 44 seconds ago
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3 66 By Bernhard 3 weeks 5 days ago
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Technical support for questions about the AAVSO web site and/or forums. Report bugs here.
173 802 By BSJ 4 days 23 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.
96 359 By Juan Manzorro 2 months 3 weeks ago
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Discussion of AAVSO-related software projects (VSX, Zapper, etc.).
130 848 By VAastro 3 days 5 hours ago
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A forum to discuss variable star data analysis.
87 472 By GabrielGL 2 weeks 5 days ago
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Discussion of the AAVSO's visualization and analysis tool, VStar
137 1114 By clkotnik 4 hours 12 minutes ago
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For discussion of VSX, the AAVSO Variable Star Index.
110 453 By Sebastian Otero 21 minutes 30 seconds ago
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Questions, discussions and announcements related to Eggen Card Project.
7 20 By jcrast 2 years ago
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Citizen Sky questions, announcements and discussion.
5 8 By M.Saladyga 6 years 8 months 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.

40 391 By msheald 5 hours 32 minutes ago
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Please use this forum to distribute time sensitive observation alerts.
287 1412 By SPK 2 weeks 3 days ago
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16 98 By rgpiccioni 1 week ago
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Discuss ongoing campaigns (Alert Notices, Special Notices, etc.), announce your own projects and report interesting observations here.
395 2838 By bramey27 1 week 4 days ago
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Discussion of and tips for making visual observations.
192 1161 By Sebastian Otero 1 week ago
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Discussion of CCD, PEP and DSLR photometry.
609 4672 By lpdirect 1 day 3 hours ago
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205 1462 By ErnstPollmann 5 days 11 hours ago
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This forum is for discussion of AAVSOnet topics including announcements, status updates, technical support and more.
276 867 By MZK 1 week 3 days ago
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This forum is for discussion of VPHOT topics including announcements, status updates, technical support and more.
495 2648 By ThomasK 9 hours 29 minutes ago
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This forum is for discussions of cataclysmic variable stars.
290 1018 By SPK 2 weeks 3 days ago
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7 19 By clkotnik 1 month 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.

6 66 By Bikeman 5 hours 42 minutes ago
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Information on the Observation and analysis of short period pulsators such as Cepheids and RR Lyrae.

5 27 By JBD 1 day ago
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Discussion of eclipsing binary stars.
41 269 By VMT 3 months ago
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43 204 By WBY 2 weeks 3 days ago
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Discussion of long period variable stars: mira's, semiregulars, etc.
140 756 By FSU 3 weeks 6 days 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.
166 1164 By JohnMarsh 1 month 1 week ago
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Discussion of RCBs and related classes of stars that show irregular fading episodes.
53 218 By SPK 10 months 3 weeks ago
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Discussion for the solar observation program and also monitoring of sudden ionospheric disturbances (SIDs).
113 496 By lward 1 week 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.
129 408 By fwalter 5 hours 46 minutes ago