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Variable Star Observations in Database:

35,025,393 and Counting ...
Last Observation Received:

27 min 47 sec ago by SDI - David Storey (GB)

SV ARI   Jan 21.9699   <16.9CV   

Plot SV ARI light curve

 
 

Stellar News Feed

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." ...

New discovery finds starving white dwarfs are binge eaters

New findings on old favorites. AAVSO and Kepler data enable a new study of MV Lyra, which was published in the journal Nature. “We have seen episodes of strong flares of accretion interrupted by periods with no evidence of accretion. This sporadic activity is best explained by the presence of a strong magnetic field comparable to that of 1000 fridge magnets”  the lead author, Dr Scaringi, sais.

Discovery of New Planet Reveals Distant Solar System to Rival Our Own

The discovery of an eighth planet circling the distant star Kepler-90 by University of Texas at Austin astronomer Andrew Vanderburg and Google’s Christopher Shallue overturns our solar system’s status as having the highest number of known planets. We're now in a tie.

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