Rarity in Space Provides Insights to Evolution
AAVSO's Staff Astronomer plays key role
Slider Link
https://www.aavso.org/press-rarity-nature-publication
Now hiring: software developer
.
Slider Link
https://www.aavso.org/software-developer-job
compare DSLR, CCD and CMOS cameras for photometry
Feb. 4 | 19:00 UT | Free | Zoom
Slider Link
https://us02web.zoom.us/webinar/register/2316748580166/WN_vgprk34BTmyDYlBLQUDlxw
Introducción a la Astronomía (Parte 1): 18/2
Gratis | Para principiantes | Zoom
Slider Link
https://us02web.zoom.us/webinar/register/3116753745560/WN_jotPgyOCQY2Vre5xGwdA8Q
Renew your AAVSO membership to keep the perks!
.
Slider Link
/product/1
Discover the AAVSO
an international community
Slider Link
/welcome
La Ciencia del Cielo para Principiantes
Seminarios web de astronomia gratis en espanol
Slider Link
/2023-seminarios-web

old logo

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

Resources

VSX Logo
(VSX) Variable Star Index
/vsx

Pick a Star

Plot a light curve
jaavso
The Journal of the AAVSO
/apps/jaavso
Data
Submit and Access Data
/databases
Telescope
Tools and Observer Resources
/observers
Observing Sections
Observing Sections
/observing-sections
Education
Education
CHOICE Courses, Manuals, Videos
/education
AAVSO In Press
AAVSO In Press
/press
Membership and Support
Membership 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:

5 6 , 8 0 0 , 1 9 4 and Counting ...

Last Observation Received:

11 min 1 sec ago by BSM - Stephen Brincat (MT)

TCP J04361641+5628241   Feb 3.977   15.283CV

Plot TCP J04361641+5628241 light curve

Alert Notice 810: ASASSN-18dg and SDSS-J080449.49+161624.8 to be observed with HST
Feb 3
Rarity in Space Provides Insights to Evolution
Feb 1
Web Software Developer Position
Jan 31
Solar Bulletin - Volume 78, Number 12
Jan 18
Alert Notice 809: Monitoring of AB Aur requested for HST support
Jan 17
News Archives

Our Stellar Partners


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

Chroma Technology logo: the word chroma goes through a bright rainbow-colored hoop

Black outline of an intricately dressed being with accentuated features

Unistellar

Boyce Astro Logo

Text reads DC-3 Dreams Observatory Operating Systems

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

NSF

NASA Logo