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Ask questions on any topic. Nothing is too simple or too complex to ask!
949 3908 By phyciocc 2 days 19 hours ago
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4 70 By hlaird 4 months ago
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Technical support for questions about the AAVSO web site and/or forums. Report bugs here.
188 847 By BSJ 2 months 3 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.
99 371 By Mesarthim 2 months 3 weeks ago
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Discussion of AAVSO-related software projects (VSX, Zapper, etc.).
138 870 By bert_test 3 days 1 hour ago
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A forum to discuss variable star data analysis.
91 484 By CTX 23 hours 28 minutes ago
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Discussion of the AAVSO's visualization and analysis tool, VStar
150 1172 By clkotnik 4 hours 13 minutes ago
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For discussion of VSX, the AAVSO Variable Star Index.
119 500 By Sebastian Otero 2 hours 2 minutes ago
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Questions, discussions and announcements related to Eggen Card Project.
8 23 By SGEO 5 months ago
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Citizen Sky questions, announcements and discussion.
8 14 By test_user2 3 days 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.

65 552 By Richard Berry 1 day 20 hours ago
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Please use this forum to distribute time sensitive observation alerts.
304 1499 By kenworthy 1 month 2 weeks ago
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17 102 By ASUTOSH 2 months 2 weeks ago
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Discuss ongoing campaigns (Alert Notices, Special Notices, etc.), announce your own projects and report interesting observations here.
414 2952 By weo 1 day ago
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Discussion of and tips for making visual observations.
196 1181 By tomstock 3 months 4 weeks ago
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Discussion of CCD, PEP and DSLR photometry.
661 4961 By tjmaccarone 4 days 6 hours ago
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229 1572 By brownrb1 1 day 2 hours ago
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This forum is for discussion of AAVSOnet topics including announcements, status updates, technical support and more.
286 894 By HQA 1 month ago
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This forum is for discussion of VPHOT topics including announcements, status updates, technical support and more.
541 2877 By FJQ 3 days 3 hours ago
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This forum is for discussions of cataclysmic variable stars.
304 1057 By avacovington 2 weeks 2 days ago
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10 27 By YPFA 1 week 3 days 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.

17 113 By Bikeman 2 months ago
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Information on the Observation and analysis of short period pulsators such as Cepheids and RR Lyrae.

9 34 By Bernhard 2 months 2 weeks ago
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Discussion of eclipsing binary stars.
47 293 By bpablo 4 months 3 weeks ago
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50 227 By rzellem 3 weeks 1 day ago
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Discussion of long period variable stars: mira's, semiregulars, etc.
147 780 By croberrw 1 month 3 weeks 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.
179 1218 By kojimukai 2 weeks 1 day ago
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Discussion of RCBs and related classes of stars that show irregular fading episodes.
54 219 By MDJ 7 months 2 weeks ago
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Discussion for the solar observation program and also monitoring of sudden ionospheric disturbances (SIDs).
120 535 By lward 4 weeks 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.
136 439 By bskiff 27 minutes 21 seconds ago