The mystery of Tabby’s Star deepens
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The uncertainty of science: New data from Kepler has made it even more difficult for scientists to explain the strange fluctuations and dimming of Tabby’s Star.
KIC 8462852, as it is more properly known, flickers so erratically that one astronomer has speculated that nothing other than a massive extraterrestrial construction project could explain its weird behaviour. A further look showed it has been fading for a century. Now, fresh analysis suggests the star has also dimmed more rapidly over the past four years – only adding to the enigma. “It seems that every time someone looks at the star, it gets weirder and weirder,” says Benjamin Montet at the California Institute of Technology, who led the study.
There are as yet no natural explanations for the star’s dimming.
My annual birthday-month fund-raising drive for Behind the Black is now on-going. Not only do your donations help pay my bills, they give me the freedom to speak honestly about science and culture, instead of being forced to write it as others demand.
Please consider donating by giving either a one-time contribution or a regular subscription, as outlined in the tip jar below.
Regular readers can support Behind The Black with a contribution via paypal:
If Paypal doesn't work for you, you can support Behind The Black directly by sending your donation by check, payable to Robert Zimmerman, to
Behind The Black
c/o Robert Zimmerman
P.O.Box 1262
Cortaro, AZ 85652
You can also support me by buying one of my books, as noted in the boxes interspersed throughout the webpage. And if you buy the books through the ebookit links, I get a larger cut and I get it sooner.
The uncertainty of science: New data from Kepler has made it even more difficult for scientists to explain the strange fluctuations and dimming of Tabby’s Star.
KIC 8462852, as it is more properly known, flickers so erratically that one astronomer has speculated that nothing other than a massive extraterrestrial construction project could explain its weird behaviour. A further look showed it has been fading for a century. Now, fresh analysis suggests the star has also dimmed more rapidly over the past four years – only adding to the enigma. “It seems that every time someone looks at the star, it gets weirder and weirder,” says Benjamin Montet at the California Institute of Technology, who led the study.
There are as yet no natural explanations for the star’s dimming.
Tabby’s star is a telescope malfunction. Haven’t I’ve told you here already?
The abnormalities in the star’s light curve only occur when the telescope is oriented in the same way. Kepler turns 90 degrees four times per year to keep its shield and solar panels towards the Sun. So the abnormalities only occurred at a few pixels of the CCD. Which could’ve been damaged by cosmic rays if nothing else.
Jason Wright has published a paper explaining how the ingress and egress of transits work for planets. The anomaly of Tabby’s star don’t fit any possible transit pattern. Not a planet, not a comet swarm, not an alien mega structure. It’s just a slight error in the telescope. I wonder how long it will take for the public astronomy community to realize this fact. But I suppose it is profitable and entertaining to keep the alien dream alive.
KIC 8462852 is a normal healthy F-star and there’s nothing strange about it. Now in September Gaia will release detailed data about millions and millions of these stable normal Sun like stars.