115th Annual Meeting Registration is Now Open
Join us in Santa Fe, NM Nov. 7th and 8th
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Building for the Future: AAVSO Expands Staff and Scientific Capacity
Building on recent growth in observers, scientific output, and community engagement, the AAVSO is making strategic investments to strengthen its future and expand opportunities for participation in astronomy.
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https://www.aavso.org/blog/building-for-the-future
A Universe of Opportunity: The Future of Small Telescope Science in the LSST Era
Each time a major sky survey comes online, the inevitable question arises: “Is this the end of amateur astronomy?”
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https://www.aavso.org/blog/future-of-small-telescope-science
Discover the AAVSO
An international community
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The vision of the AAVSO is to become the leading platform where people of all ages and backgrounds learn about and participate in scientific astronomy.

Resources

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(VSX) Variable Star Index
https://vsx.aavso.org/

Pick a Star

Plot a light curve
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The Journal of the AAVSO
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Data
Submit and Access Data
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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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AAVSO In the Press
AAVSO In the Press
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Membership and Support
Membership 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:

8 4 , 4 2 1 , 7 3 6 and Counting ...

Last Observation Received:

30 min 23 sec ago by KPRB - Dr. Pradip Karmakar (IN)

V0365 CVN   Jul 23.1466   12.435B

Plot V0365 CVN light curve

JAAVSO Volume 54, Number 1, June 2026, print version now available
Jul 9
Director’s Report - 2026-Q1/Q2
Jul 8
JAAVSO Volume 54, Number 1, 2026 is published
Jun 15
Building for the Future: AAVSO Expands Staff and Scientific Capacity
Jun 15
Joanna DiStefano
Jun 3
News Archives

Our Stellar Partners


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