Home | aavso

compare DSLR, CCD and CMOS cameras for photometry

Feb. 4 | 19:00 UT | Free | Zoom

https://us02web.zoom.us/webinar/register/2316748580166/WN_vgprk34BTmyDYlBLQUDlxw

AAVSO Exoplanet Database Supports NASA’s Exoplanet Watch Program

https://www.aavso.org/press-AED-Supports-Exoplanet-Watch

"Proceedings of the 111th AAVSO Annual Meeting"

Read for free! Thank you, contributors!

/aavso-meetings

Educación en astronomía: seminarios web en español

/2023-seminarios-web

Renew your AAVSO membership to keep the perks!

Discover the AAVSO

an international community

old logo

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

Resources

(VSX) Variable Star Index

jaavso

The Journal of the AAVSO

Data

Submit and Access Data

Telescope

Tools and Observer Resources

Observing Sections

Observing Sections

/observing-sections

Education

Education

CHOICE Courses, Manuals, Videos

AAVSO In Press

AAVSO In Press

Membership and Support

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:

5 6 , 7 3 7 , 2 0 2 and Counting ...

Last Observation Received:

1 hour 2 min ago by PJEE - Jerry Philpot (US)

CF PER Jan 21.1529 10.989V

Plot CF PER light curve

Solar Bulletin - Volume 78, Number 12

Jan 18

Alert Notice 809: Monitoring of AB Aur requested for HST support

Jan 17

AAVSO Exoplanet Database Supports NASA’s Exoplanet Watch Program

Jan 13

Alert Notice 808: Bright outburst of the blazar 4C 31.03

Jan 9

Seminarios web de AAVSO: La Ciencia del Cielo para Principiantes (2023)

Jan 3

Our Stellar Partners

$Diffraction Limited logo of a swirled circle with text: Diffraction: Astronomy + Scientific Imaging SolutionsIm$

Black outline of an intricately dressed being with accentuated features

Text reads "Sky & Telescope" with the ampersand in a circle.