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Ask questions on any topic. Nothing is too simple or too complex to ask!
1065 4279 By YPFA 11 hours 9 minutes ago
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Technical support for questions about the AAVSO web site and/or forums. Report bugs here.
210 914 By pittendreigh 15 hours 23 minutes 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.
121 396 By Sebastian Otero 3 weeks 1 day ago
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Discussion of AAVSO-related software projects (VSX, Zapper, etc.).
169 959 By han.k 1 week 2 days ago
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A forum to discuss variable star data analysis.
104 546 By MESaavso 1 week 2 days ago
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Discussion of the AAVSO's visualization and analysis tool, VStar
185 1432 By David Benn 2 weeks 1 day ago
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For discussion of VSX, the AAVSO Variable Star Index.
153 599 By weo 1 week 2 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.

124 954 By JV 1 week ago
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Please use this forum to distribute time sensitive observation alerts.
328 1584 By The_Celestial_Creole 2 weeks 2 days ago
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18 103 By AAVSO_ 1 year 7 months ago
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Discuss ongoing campaigns (Alert Notices, Special Notices, etc.), announce your own projects and report interesting observations here.
460 3329 By annafpala 2 days 19 hours ago
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Discussion of and tips for making visual observations.
200 1188 By weo 1 week 2 days ago
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Discussion of CCD, PEP and DSLR photometry.
768 5500 By weo 1 week 2 days ago
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282 1756 By ErnstPollmann 2 days 4 hours ago
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This forum is for discussion of AAVSOnet topics including announcements, status updates, technical support and more.
316 993 By Pradip 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.
621 3231 By SGEO 2 weeks 1 day ago
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This forum is for discussions of cataclysmic variable stars.
328 1141 By jmsikora 2 days 23 hours ago
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16 48 By weo 1 week 2 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.

46 223 By Bikeman 2 weeks 6 days ago
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Information on the Observation and analysis of short period pulsators such as Cepheids and RR Lyrae.

23 106 By weo 1 week 2 days ago
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Discussion of eclipsing binary stars.
66 375 By weo 1 week 2 days ago
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90 415 By mikeprimm 1 week 2 days ago
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Discussion of long period variable stars: mira's, semiregulars, etc.
163 820 By pbealo@comcast.net 2 hours 57 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.
191 1254 By weo 1 week 2 days ago
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Discussion of RCBs and related classes of stars that show irregular fading episodes.
57 228 By HBB 4 days 3 hours ago
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Discussion for the solar observation program and also monitoring of sudden ionospheric disturbances (SIDs).
149 655 By HRHA 1 day 2 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.
165 571 By weo 1 week 2 days ago