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Recent Activity

Variable Star Observations in Database:

35,173,881 and Counting ...
Last Observation Received:

20 min 41 sec ago by TRE - Ray Tomlin (US)

FQ CAS   Oct 5.1999   12.726V   

Plot FQ CAS light curve


Stellar News Feed

Amateur astronomer captures rare first light from massive exploding star

Thanks to lucky snapshots taken by Victor Buso, an amateur astronomer in Argentina, scientists have obtained their first view of the initial burst of light from the explosion of a massive star.

Read more here.

What really happens inside a solar eruption

Researchers have determined that a magnetic power struggle could be behind all solar eruptions. The findings, detailed in a study published in the journal Nature on Wednesday, might improve our ability to predict solar flares.

Astronomers using ESO’s MUSE instrument on the Very Large Telescope in Chile

Astronomers using ESO’s MUSE instrument on the Very Large Telescope in Chile have discovered a star in the cluster NGC 3201 that is behaving very strangely. It appears to be orbiting an invisible black hole with about four times the mass of the Sun — the first such inactive stellar-mass black hole found in a globular cluster and the first found by directly detecting its gravitational pull. This important discovery impacts on our understanding of the formation of these star clusters, black holes, and the origins of gravitational wave events.

Read more here

A century of cepheids: Two astronomers, a hundred years apart, use stars to measure the Universe

How far away is that galaxy?

Our entire understanding of the Universe is based on knowing the distances to other galaxies, yet this seemingly-simple question turns out to be fiendishly difficult to answer. 

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Alien Megastructure not the cause of dimming of the 'Most Mysterious Star in the Universe'

A team of more than 200 researchers, led by Louisiana State University's Tabetha Boyajian, is one step closer to solving the mystery behind the "most mysterious star in the universe." Boyajian said, "It's exciting. I am so appreciative of all of the people who have contributed to this in the past year -- the citizen scientists and professional astronomers. It's quite humbling to have all of these people contributing in various ways to help figure it out." ...

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