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Ask questions on any topic. Nothing is too simple or too complex to ask!
931 3868 By ACN 4 days 11 hours ago
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4 70 By hlaird 1 month 3 weeks ago
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Technical support for questions about the AAVSO web site and/or forums. Report bugs here.
188 847 By BSJ 1 week 5 days 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 6 days 19 hours ago
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Discussion of AAVSO-related software projects (VSX, Zapper, etc.).
137 869 By olichris 1 week 4 days ago
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A forum to discuss variable star data analysis.
88 477 By purdy 5 days ago
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Discussion of the AAVSO's visualization and analysis tool, VStar
147 1160 By eclipse-chaser 5 days 13 hours ago
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For discussion of VSX, the AAVSO Variable Star Index.
116 486 By swadhwa 1 week 1 day ago
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Questions, discussions and announcements related to Eggen Card Project.
8 23 By SGEO 2 months 3 weeks ago
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Citizen Sky questions, announcements and discussion.
7 13 By onj 3 months 2 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.

62 521 By dks 9 hours 21 minutes ago
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Please use this forum to distribute time sensitive observation alerts.
302 1493 By hptuttle 6 days 7 hours ago
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17 102 By ASUTOSH 3 days 5 hours ago
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Discuss ongoing campaigns (Alert Notices, Special Notices, etc.), announce your own projects and report interesting observations here.
408 2930 By pbealo@comcast.net 1 week 2 days ago
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Discussion of and tips for making visual observations.
196 1181 By tomstock 1 month 1 week ago
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Discussion of CCD, PEP and DSLR photometry.
657 4942 By spp 5 hours 38 minutes ago
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220 1547 By christian 1 week 2 days ago
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This forum is for discussion of AAVSOnet topics including announcements, status updates, technical support and more.
285 891 By HQA 4 weeks 2 days ago
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This forum is for discussion of VPHOT topics including announcements, status updates, technical support and more.
532 2816 By LMN 1 hour 30 minutes ago
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This forum is for discussions of cataclysmic variable stars.
301 1048 By Juan Manzorro 3 days 15 hours ago
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10 25 By alschmitt 4 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.

16 112 By daveh 2 weeks 5 days 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 days 22 hours ago
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Discussion of eclipsing binary stars.
47 293 By bpablo 2 months 1 week ago
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49 225 By psychwolf 4 days 7 hours ago
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Discussion of long period variable stars: mira's, semiregulars, etc.
147 776 By croberrw 14 hours 23 minutes 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.
177 1198 By SPK 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 5 months ago
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Discussion for the solar observation program and also monitoring of sudden ionospheric disturbances (SIDs).
119 532 By maxsurlaroute 2 days 8 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.
134 433 By weo 1 week 3 days ago