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Ask questions on any topic. Nothing is too simple or too complex to ask!
923 3852 By LKR 13 hours 9 minutes ago
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4 70 By hlaird 1 week 2 days ago
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Technical support for questions about the AAVSO web site and/or forums. Report bugs here.
188 845 By weo 2 days 17 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.
97 361 By olichris 1 month 2 weeks ago
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Discussion of AAVSO-related software projects (VSX, Zapper, etc.).
135 864 By blackhaz 3 weeks 3 days ago
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A forum to discuss variable star data analysis.
88 475 By purdy 1 week 6 days ago
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Discussion of the AAVSO's visualization and analysis tool, VStar
143 1136 By mpyat2 1 day 2 hours ago
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For discussion of VSX, the AAVSO Variable Star Index.
114 481 By Sebastian Otero 6 days 1 hour ago
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Questions, discussions and announcements related to Eggen Card Project.
8 23 By SGEO 1 month 1 week ago
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Citizen Sky questions, announcements and discussion.
7 13 By onj 2 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.

58 485 By MMU 16 hours 48 minutes ago
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Please use this forum to distribute time sensitive observation alerts.
298 1476 By SPK 5 days 16 hours ago
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17 99 By tjmaccarone 2 weeks 2 days ago
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Discuss ongoing campaigns (Alert Notices, Special Notices, etc.), announce your own projects and report interesting observations here.
406 2918 By pbealo@comcast.net 2 days 18 hours ago
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Discussion of and tips for making visual observations.
196 1181 By tomstock 14 hours 55 minutes ago
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Discussion of CCD, PEP and DSLR photometry.
651 4901 By Ed Wiley_WEY 1 day 16 hours ago
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219 1535 By ErnstPollmann 4 days 19 hours ago
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This forum is for discussion of AAVSOnet topics including announcements, status updates, technical support and more.
283 888 By GFB 2 weeks 2 days ago
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This forum is for discussion of VPHOT topics including announcements, status updates, technical support and more.
525 2781 By pava0555 20 minutes 34 seconds ago
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This forum is for discussions of cataclysmic variable stars.
297 1036 By pava0555 55 minutes 2 seconds ago
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10 25 By alschmitt 2 months 4 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.

14 96 By Filipp Romanov 3 days 19 hours ago
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Information on the Observation and analysis of short period pulsators such as Cepheids and RR Lyrae.

8 33 By msheald 4 weeks 1 day ago
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Discussion of eclipsing binary stars.
47 293 By bpablo 4 weeks 1 day ago
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47 218 By Bryanemartin 1 week 4 days ago
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Discussion of long period variable stars: mira's, semiregulars, etc.
147 773 By croberrw 3 weeks 5 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.
174 1191 By shawn 2 days 14 hours ago
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Discussion of RCBs and related classes of stars that show irregular fading episodes.
54 219 By MDJ 3 months 3 weeks ago
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Discussion for the solar observation program and also monitoring of sudden ionospheric disturbances (SIDs).
119 528 By lward 1 day 9 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.
133 431 By pox 1 week ago