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Reminder: Board of Directors Nominations Deadline: July 31!

https://www.aavso.org/invitation-nominees-2021-board

From AAVSO's President:

a letter to you

https://www.aavso.org/presidents-letter-july-2021

Annual Meeting & Workshop

Submit your abstract | Spectroscopy workshop schedule | Register!

/aavso-meetings

Join Exoplanet Exploration: Citizens Help NASA Observe Other Worlds with Exoplanet Watch!

https://www.aavso.org/exoplanet-watch-pr

Become an AAVSO member and be a part of 110 years of citizen science

https://www.aavso.org/join-aavso

Welcome to the AAVSO!

New explorers are welcome.
YOU can be an astronomer.

https://www.youtube.com/watch?v=tgCB2lBRk8s&t=5s

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The mission of the AAVSO is to enable anyone, anywhere to participate in scientific discovery through variable star astronomy.

Resources

(VSX) Variable Star Index

/vsx

The Journal of the AAVSO

/apps/jaavso

Submit and Access Data

/databases

Tools and Observer Resources

/observers

Observing Sections

/observing-sections

Education

CHOICE Courses, Manuals, Videos

/education

Shop

/aavso-store-2

Join and Support

/join-aavso

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 7 9 , 1 3 1 and Counting ...

Last Observation Received:

17 min 27 sec ago by VSD - David Vansteelant (BE)

N CAS 2021 Jul 30.9528 8.0Vis.

Plot N CAS 2021 light curve

Photoelectric Targets and Data Reduction

Jul 26

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

News Archives

Our Stellar Partners

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Resources

Pick a Star

AAVSO at a Glance

Variable Star Observations in Database:

Last Observation Received:

Our Stellar Partners