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Announcing the Candidates for 2018 AAVSO Council Election!

107th Annual Fall Meeting

book your room in Flagstaff!!

RENEW YOUR MEMBERSHIP TODAY!!

107th Annual Fall Meeting

Registration NOW OPEN!!!!

AAVSO seeking an Editor

for the Journal of the American Association of Variable Star Observers (JAAVSO)

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Recent Activity
 
 

Variable Star Observations in Database:

36,927,115 and Counting ...
Last Observation Received:

7 min 46 sec ago by SDB - Donn Starkey (US)

ASASSN-18EY   Oct 23.0799   14.406V   

Plot ASASSN-18EY light curve

 
 

Stellar News Feed

Astronomers find 72 bright and fast explosions

Gone in a (cosmological) flash: a team of astronomers found 72 very bright, but quick events in a recent survey and are still struggling to explain their origin. Miika Pursiainen of the University of Southampton will present the new results on Tuesday 3 April at the European Week of Astronomy and Space Science.

Read more here

proboxing

A new study describes the most extreme known example of a "fast-evolving luminous transient" (FELT) supernova...

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330-453-9714

For the first time, VLT reveals granulation on the aging red giant π1 Gruis a star which has 350 times the diameter of the Sun.

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615-356-4254

AAVSO observers contribute key data to a rare microlensing exoplanet event with an Earth-like planet of 9.2 ± 6.6 M_earth. This is the closest lensing system reported so far. Beautiful light curve in figure 1, showcasing synergy between AAVSO, ASAS-SN, FO, SL and CSAI.

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Powerful Flare from Star Proxima Centauri Detected with ALMA

Powerful flare emitted by Proxima Centauri, the star closest to our sun, may make that system rather inhospitable to life after all.

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