Spectroscopy Workshop
See the schedule and register!
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Accepting presentation and poster abstracts! Submit yours!
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https://www.aavso.org/110-annual-meeting#abstracts
Join Exoplanet Exploration: Citizens Help NASA Observe Other Worlds with Exoplanet Watch!
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https://www.aavso.org/exoplanet-watch-pr
Welcome to the AAVSO!
New explorers are welcome.
YOU can be an astronomer.
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https://www.youtube.com/watch?v=tgCB2lBRk8s&t=5s
Join us July 24 for our AAVSOnet and Bright Spectral Robot webinar!
Part of our AAVSO 2021 Webinars and How-to Hours
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https://www.aavso.org/2021-webinars-july-september
Data from AAVSO observers contributed to a flurry of activity around Betelgeuse
Make a real contribution to science, and observe with us!
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https://www.aavso.org/faq
Become an AAVSO member and be a part of 110 years of citizen science
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https://www.aavso.org/join-aavso
2021 Invitation for AAVSO Board of Directors Nominees
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https://www.aavso.org/invitation-nominees-2021-board
July's variable star and observing guide
Explore R Scuti with us! Monthly episodes include a video, finder chart, & observing tips for the beginner.

A collaboration of AAVSO, Ball State University, and the International Planetarium Society
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The mission of the AAVSO is to enable anyone, anywhere to participate in scientific discovery through variable star astronomy. 

Resources

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(VSX) Variable Star Index
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Pick a Star

Plot a light curve
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The Journal of the AAVSO
/apps/jaavso
Data
Submit and Access Data
/databases
Telescope
Tools and Observer Resources
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Observing Sections
Observing Sections
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Education
Education
CHOICE Courses, Manuals, Videos
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Shop
Shop
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Join and Support
Join and Support
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The AAVSO is an equal opportunity and discrimination / harassment free environment. 
Please read our policies HERE

AAVSO at a Glance

Variable Star Observations in Database:

4 5 , 9 1 2 , 0 9 1 and Counting ...

Last Observation Received:

11 min 49 sec ago by FLSA - Louw Ferreira (ZA)

VX HER   Jul 23.7475   10.016V

Plot VX HER light curve

2021 Spectroscopy Workshop Agenda is now available!!
Jul 21
Alert Notice 748: Observations needed now for re-scheduled HST targets
Jul 21
2021 AAVSO Spectroscopy Workshop
Jul 21
Alert Notice 747: V627 Peg photometry and spectroscopy requested
Jul 20
Solar Bulletin - Volume 77, Number 06
Jul 16
News Archives

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