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End of year message from the Director

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JAAVSO Volume 44 No. 2

John R. Percy editorial

NEW Exoplanet CHOICE Course

New Year's message from the President

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Recent Activity

Variable Star Observations in Database:

32,428,508 and Counting ...
Last Observation Received:

4 min 32 sec ago by LDJ - David Lane (CA)

S5 1803+78   Jan 16.2267   16.301V   

Plot S5 1803+78 light curve


Stellar News Feed

How to See a Star Explode in 2022

For the first time, astronomers are confidently predicting how to see this type of brilliant blast, which will be visible with the naked eye.

Read the full story here

Exoplanet Anniversary: 1st Alien Worlds Confirmed 25 Years Ago Today

On Jan. 9, 1992, astronomers Alex Wolszczan and Dale Frail published a paper in the journal Nature announcing the discovery of two planets circling an incredibly dense, rapidly rotating stellar corpse known as a pulsar.

Mystery of 'Alien Megastructure' Star Testing Astronomers' Creativity

In September 2015, Yale University's Tabetha Boyajian and her colleagues reported that the star KIC 8462852 has dimmed dramatically multiple times over the past seven years, once by an astounding 22 percent. 

Is Betelgeuse a Cannibal? "Giant Star Betelgeuse May Have Devoured Sun-Size Companion"


The huge, red star Betelgeuse, which marks the hunter's shoulder in the constellation Orion, may have swallowed up a companion star not long ago, a new study suggests.

Read the full story here

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