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Ask questions on any topic. Nothing is too simple or too complex to ask!
1127 4535 By SGEO 13 hours 50 minutes ago
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Technical support for questions about the AAVSO web site and/or forums. Report bugs here.
227 963 By PYG 2 weeks 4 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.
132 417 By RGN 1 month ago
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Discussion of AAVSO-related software projects (VSX, Zapper, etc.).
171 968 By petefleurant 1 month 2 weeks ago
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A forum to discuss variable star data analysis.
112 571 By arx 1 week 3 days ago
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Discussion of the AAVSO's visualization and analysis tool, VStar
193 1474 By David Benn 1 month 2 weeks ago
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For discussion of VSX, the AAVSO Variable Star Index.
170 658 By SKA 2 weeks 4 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.

146 1072 By Gianlucanigro 1 day ago
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Please use this forum to distribute time sensitive observation alerts.
342 1620 By weo 4 days 10 hours ago
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18 103 By AAVSO_ 2 years 4 months ago
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Discuss ongoing campaigns (Alert Notices, Special Notices, etc.), announce your own projects and report interesting observations here.
479 3634 By lbiddle 1 week 4 days ago
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Discussion of and tips for making visual observations.
207 1207 By mdrapp 2 months 2 weeks ago
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Discussion of CCD, PEP and DSLR photometry.
818 5768 By Calculad 13 hours 21 minutes ago
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304 1860 By tlyster 1 week 3 days ago
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This forum is for discussion of AAVSOnet topics including announcements, status updates, technical support and more.
331 1044 By SGEO 2 months 3 weeks ago
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This forum is for discussion of VPHOT topics including announcements, status updates, technical support and more.
665 3442 By garyhawkins 16 hours 51 minutes ago
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This forum is for discussions of cataclysmic variable stars.
355 1300 By Calculad 1 week ago
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16 51 By rachlin 4 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.

56 283 By Bikeman 3 days 16 hours ago
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Information on the Observation and analysis of short period pulsators such as Cepheids and RR Lyrae.

29 132 By SHA 4 days 13 hours ago
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Discussion of eclipsing binary stars.
75 437 By kevinbalton 1 week 5 days ago
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104 489 By weo 1 month 3 weeks ago
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Discussion of long period variable stars: mira's, semiregulars, etc.
172 851 By soi 1 month 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.
200 1284 By weo 4 days 10 hours ago
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Discussion of RCBs and related classes of stars that show irregular fading episodes.
58 229 By Aengus O'Fearghail 8 months 4 weeks ago
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Discussion for the solar observation program and also monitoring of sudden ionospheric disturbances (SIDs).
154 680 By weo 3 days 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.
168 596 By hambsch 2 weeks 2 days ago