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Ask questions on any topic. Nothing is too simple or too complex to ask!
946 3898 By AAVSO_ 5 days 5 hours ago
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4 70 By hlaird 3 months 1 week 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 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 1 month 3 weeks ago
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Discussion of AAVSO-related software projects (VSX, Zapper, etc.).
137 869 By olichris 1 month 4 weeks ago
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A forum to discuss variable star data analysis.
90 482 By MJB 4 weeks 2 days ago
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Discussion of the AAVSO's visualization and analysis tool, VStar
149 1167 By YPFA 22 hours 13 minutes ago
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For discussion of VSX, the AAVSO Variable Star Index.
122 500 By webthelog 1 day 20 hours ago
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Questions, discussions and announcements related to Eggen Card Project.
8 23 By SGEO 4 months 1 week ago
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Citizen Sky questions, announcements and discussion.
7 13 By onj 5 months 1 week 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.

63 535 By MZK 3 hours 57 minutes ago
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Please use this forum to distribute time sensitive observation alerts.
304 1499 By kenworthy 2 weeks 6 days ago
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17 102 By ASUTOSH 1 month 3 weeks ago
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Discuss ongoing campaigns (Alert Notices, Special Notices, etc.), announce your own projects and report interesting observations here.
412 2937 By hambsch 4 days 10 hours ago
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Discussion of and tips for making visual observations.
196 1181 By tomstock 3 months ago
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Discussion of CCD, PEP and DSLR photometry.
660 4958 By arx 2 weeks 2 days ago
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225 1562 By weo 5 days 9 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 week 4 days ago
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This forum is for discussion of VPHOT topics including announcements, status updates, technical support and more.
541 2867 By pbealo@comcast.net 8 hours 47 minutes ago
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This forum is for discussions of cataclysmic variable stars.
304 1056 By weo 5 days 10 hours ago
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10 25 By alschmitt 6 months 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 1 month 1 week 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 1 month 3 weeks ago
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Discussion of eclipsing binary stars.
47 293 By bpablo 4 months ago
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49 225 By psychwolf 1 month 3 weeks ago
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Discussion of long period variable stars: mira's, semiregulars, etc.
147 780 By croberrw 4 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 1217 By kojimukai 1 week 3 days ago
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Discussion of RCBs and related classes of stars that show irregular fading episodes.
54 219 By MDJ 6 months 3 weeks ago
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Discussion for the solar observation program and also monitoring of sudden ionospheric disturbances (SIDs).
120 535 By lward 2 days 11 hours 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.
135 436 By pbealo@comcast.net 2 weeks 4 days ago