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KIC 8462852 Observations
JRehling
post Oct 15 2015, 04:45 PM
Post #101


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Kepler found one very, very strange case:

http://www.theatlantic.com/science/archive...-galaxy/410023/

In a nutshell, while Kepler was observing it, the star (larger and brighter than the Sun) exhibited four dimming events that took place at irregular intervals, blocked a lot more light than a Jupiter-sized planet would block, and had a "shape" that varied in all four cases and did not resemble a planet.

This case is attracting some wild speculation… in fact, it is seemingly certain that something wild must be going on; it's just a matter of which wild scenario is the correct one.

If I had to throw my hat in the ring, I'd guess that a distant collision and breakup has placed big swarms of matter into a very long-period orbit. But there's no hypothesis that's been offered that doesn't seem problematic.
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- JRehling   KIC 8462852 Observations   Oct 15 2015, 04:45 PM
- - Gerald   I'm still trying to find out some hint to the ...   Jan 30 2016, 09:08 PM
- - dudley   I believe the metallicity figure is compared to th...   Jan 31 2016, 12:53 AM
- - Gerald   Metallicity: QUOTE In astronomy and physical cosmo...   Jan 31 2016, 02:40 AM
- - Gerald   A LHB-like scenario, in this case caused by a rece...   Feb 2 2016, 12:01 PM
|- - JRehling   QUOTE (Gerald @ Feb 2 2016, 05:01 AM) (I...   Feb 2 2016, 07:08 PM
- - Gerald   Just checking, whether a cloud of debris can be ma...   Feb 3 2016, 02:43 PM
|- - JRehling   Per your galaxy metaphor, Gerald, I wonder if some...   Feb 3 2016, 10:18 PM
- - Gerald   Yes, the Sombrero galaxy comes very close to a glo...   Feb 4 2016, 01:07 PM
|- - HSchirmer   QUOTE (Gerald @ Feb 4 2016, 02:07 PM) Ano...   Feb 4 2016, 02:14 PM
|- - JRehling   The only way a large moon such as Ganymede could b...   Feb 4 2016, 05:24 PM
|- - HSchirmer   QUOTE (JRehling @ Feb 4 2016, 05:24 PM) F...   Feb 4 2016, 06:55 PM
- - Gerald   When taking Ganymede with a mass of about m=14.8e2...   Feb 4 2016, 02:44 PM
|- - HSchirmer   QUOTE (Gerald @ Feb 4 2016, 03:44 PM) Whe...   Feb 4 2016, 03:04 PM
- - alan   Some articles that may be relevant Iapetus's ...   Feb 4 2016, 05:53 PM
- - dudley   The scientific paper that first brought discussion...   Feb 8 2016, 07:42 PM
- - Mongo   A podcast with Dr. Josh Grindley of DASCH, about t...   Feb 9 2016, 03:27 PM
- - dudley   Judging by Dr. Grindlay's own remarks, some of...   Feb 9 2016, 03:58 PM
- - beduino   I never really agreed that comets can block as muc...   Mar 13 2016, 09:48 PM
- - HSchirmer   Well, it looks like there's another wierd long...   May 5 2016, 05:15 PM
- - Mongo   Bradley Schaefer comes out swinging: Further Thoug...   May 24 2016, 09:09 PM
- - Mongo   A new paper on arXiv supports the long-term dimmin...   Aug 5 2016, 03:46 PM
|- - JRehling   I'm a neophyte in studying deep space astrophy...   Aug 14 2016, 04:26 AM
|- - HSchirmer   QUOTE (JRehling @ Aug 14 2016, 04:26 AM) ...   Oct 7 2016, 04:12 PM
- - Holder of the Two Leashes   A new theory about the star, the irregular dimming...   Dec 22 2016, 02:05 PM
|- - HSchirmer   QUOTE (Holder of the Two Leashes @ Dec 22 201...   May 23 2017, 03:36 AM
|- - HSchirmer   QUOTE (HSchirmer @ May 23 2017, 03:36 AM)...   May 23 2017, 05:39 AM
- - HSchirmer   LOOK NOW... Star is dimming NOW. If you've g...   May 19 2017, 07:56 PM
|- - JRehling   I took a picture of it a few months ago, and I cou...   May 19 2017, 10:03 PM
- - Xcalibrator   Official monitoring program page, although it...   May 21 2017, 12:09 AM
|- - JRehling   By the way, at the same time and almost the same p...   May 21 2017, 06:17 PM
|- - HSchirmer   QUOTE (JRehling @ May 21 2017, 06:17 PM) ...   May 23 2017, 01:11 AM
|- - HSchirmer   QUOTE (JRehling @ May 21 2017, 06:17 PM) ...   May 23 2017, 01:43 AM
- - alan   KIC 8462852: Will the Trojans return in 2021? QUO...   May 24 2017, 07:12 PM
|- - HSchirmer   QUOTE (alan @ May 24 2017, 07:12 PM) KIC ...   May 24 2017, 11:56 PM
- - hendric   1 AU is 150,000,000 km, not 150,000.   May 25 2017, 04:56 PM
|- - HSchirmer   QUOTE (hendric @ May 25 2017, 04:56 PM) 1...   May 25 2017, 05:33 PM
- - dudley   This new hypothesis calls for a planet about 30 pe...   May 26 2017, 04:15 PM
|- - HSchirmer   QUOTE (dudley @ May 26 2017, 05:15 PM) Th...   May 26 2017, 10:34 PM
- - ngunn   For me that's the first suggestion that sounds...   May 27 2017, 09:26 AM
|- - HSchirmer   QUOTE (ngunn @ May 27 2017, 10:26 AM) The...   May 27 2017, 10:27 AM
- - Mongo   Another dip starting? From Kepler Star KIC 846285...   Jun 14 2017, 02:49 PM
- - Mongo   A short update on the current dip, so far it seems...   Jun 19 2017, 01:56 AM
|- - HSchirmer   QUOTE (Mongo @ Jun 19 2017, 01:56 AM) A s...   Dec 11 2017, 02:24 PM
- - HSchirmer   New paper coming out by Boyajian et al, with hundr...   Dec 30 2017, 02:34 PM
- - alan   New Data Debunks Alien Megastructure Theory on the...   Jan 5 2018, 08:57 PM
- - Gerald   Might be, that I'm not quite up to date here, ...   Jan 11 2018, 12:22 AM
|- - HSchirmer   QUOTE (Gerald @ Jan 11 2018, 01:22 AM) Mi...   Jan 11 2018, 02:33 AM
- - Gerald   Ok, thanks, this fits better with my understanding...   Jan 11 2018, 01:21 PM
|- - HSchirmer   QUOTE (Gerald @ Jan 11 2018, 01:21 PM) Ok...   Jan 11 2018, 06:22 PM
|- - Gerald   QUOTE (HSchirmer @ Jan 11 2018, 07:22 PM)...   Jan 12 2018, 02:01 AM
- - Gerald   If it's on the star itself, it needs to be ver...   Jan 14 2018, 07:35 PM
|- - stevesliva   QUOTE (Gerald @ Jan 14 2018, 02:35 PM) If...   Jan 16 2018, 07:59 PM
- - Gerald   How does the presumed dust avoid falling into the ...   Jan 17 2018, 02:12 AM
- - stevesliva   Magic, magic, and magic, of course. I try to make ...   Jan 17 2018, 02:40 AM
- - hendric   But we don't know for sure if it's in orbi...   Jan 18 2018, 04:48 PM
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