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Ask questions on any topic. Nothing is too simple or too complex to ask!
969 3956 By jji 2 days 3 hours ago
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4 70 By hlaird 7 months 2 weeks ago
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Technical support for questions about the AAVSO web site and/or forums. Report bugs here.
197 876 By BSJ 2 weeks 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.
102 375 By Sebastian Otero 2 weeks 5 days ago
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Discussion of AAVSO-related software projects (VSX, Zapper, etc.).
146 891 By mphillips 4 days ago
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A forum to discuss variable star data analysis.
92 485 By sabichette 2 months 3 weeks ago
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Discussion of the AAVSO's visualization and analysis tool, VStar
151 1181 By David Benn 1 month 1 week ago
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For discussion of VSX, the AAVSO Variable Star Index.
121 504 By Sebastian Otero 23 hours 53 minutes ago
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Questions, discussions and announcements related to Eggen Card Project.
8 23 By SGEO 8 months 2 weeks ago
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Citizen Sky questions, announcements and discussion.
8 14 By test_user2 3 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.

72 636 By jmsikora 1 week 1 day ago
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Please use this forum to distribute time sensitive observation alerts.
307 1502 By dks 3 months 1 week ago
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18 103 By AAVSO_ 2 months 4 weeks ago
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Discuss ongoing campaigns (Alert Notices, Special Notices, etc.), announce your own projects and report interesting observations here.
425 3059 By annafpala 9 hours 34 minutes ago
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Discussion of and tips for making visual observations.
197 1182 By ajc 2 months 2 weeks ago
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Discussion of CCD, PEP and DSLR photometry.
683 5055 By arx 5 days 2 hours ago
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234 1579 By sdprofx 3 weeks 5 days ago
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This forum is for discussion of AAVSOnet topics including announcements, status updates, technical support and more.
291 912 By hambsch 6 hours 38 minutes ago
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This forum is for discussion of VPHOT topics including announcements, status updates, technical support and more.
562 2980 By HQA 2 hours 9 minutes ago
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This forum is for discussions of cataclysmic variable stars.
307 1069 By ignpg 1 week 4 days ago
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11 30 By kevinbalton 1 month 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.

20 116 By Bikeman 1 week 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 5 months 3 weeks ago
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Discussion of eclipsing binary stars.
52 320 By arx 3 days 19 hours ago
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65 284 By wglogowski 1 week 1 day ago
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Discussion of long period variable stars: mira's, semiregulars, etc.
150 785 By croberrw 1 week 6 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.
180 1229 By kojimukai 1 day 8 hours ago
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Discussion of RCBs and related classes of stars that show irregular fading episodes.
54 219 By MDJ 11 months ago
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Discussion for the solar observation program and also monitoring of sudden ionospheric disturbances (SIDs).
121 541 By lward 1 week 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.
144 462 By hambsch 6 hours 6 minutes ago