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KIC 8462852 Observations
HSchirmer
post Yesterday, 05:39 AM
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QUOTE (HSchirmer @ May 23 2017, 03:36 AM) *
Well, on the other hand, the recent 3% dip MIGHT indicate that the pattern with the 22% dip is repeating.
If so, then this is VERY interesting for 2 reasons.

First, we actually get to analyze the dips as they happen, with spectra.
Second, this would place whatever-is-causing-the-dips roughly within the goldilocks zone of the star


Oh, wow... a third point...
https://twitter.com/david_kipping/status/866127740776456192
These dips last for days.
If this is something with a 750 day circular orbit, then each day of occultation represents an arc 700,000km long.
Then the recent 3% dip over 2.5 days requires something opaque that is
roughly 5 sun (sol) diameters in length, and perhaps 2 Jupiters wide,
moving between Tabby's Star and us. If it's not completely opaque, then it's got to be even bigger.

Wow, that's big.
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alan
post Today, 07:12 PM
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KIC 8462852: Will the Trojans return in 2021?

QUOTE
We aim at offering a relatively natural solution, invoking only phenomena that have been previously observed, although perhaps in larger or more massive versions. We model the system using a large, ringed body whose transit produces the first dimming and a swarm of Trojan objects sharing its orbit that causes the second period of multiple dimmings. The resulting orbital period is T≈12 years, with a semi-major axis a≈6 au. In this context the recent observation of a minor dimming can be explained as a secondary eclipse produced by the passage of the planet behind the star. Our model allows us to make two straightforward predictions: we expect the passage of a new swarm of Trojans in front of the star starting during the early months of 2021, and a new transit of the main object during the first half of 2023.


https://arxiv.org/abs/1705.08427
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