VIRGO: tady je případně celé vlákno k diskuzi o Tabby's Star. Myslím, že se tam shromažďují všechny podstatné aktuální odkazy: https://www.reddit.com/r/KIC8462852/

VINCENT_BU: jízda! :o

Collapsing Star Gives Birth to a Black Hole (without going supernova)
Astronomers have watched as a massive, dying star was likely reborn as a black hole. It took the combined power of the Large Binocular Telescope (LBT), and NASA's Hubble and Spitzer space telescopes to go looking for remnants of the vanquished star, only to find that it disappeared out of sight. It went out with a whimper instead of a bang. The star, which was 25 times as massive as our sun, should have exploded in a very bright supernova. Instead, it fizzled out –– and then left behind a black hole.

Star Gives Birth to Possible Black Hole in Hubble and Spitzer Images
https://www.youtube.com/watch?v=bL1sQjNsuws#t=11


more also here: https://www.jpl.nasa.gov/news/news.php?feature=6858

Schiaparelli: Crashed lander was ill-prepared for Mars - BBC News
http://www.bbc.com/news/science-environment-40029180#

ještě jeden obrázek k Tabby's Star, shrnutí fluktuace zdánlivé magnitudy za květnové dny od amatérského pozorovatele. Na stránce http://www.brucegary.net/KIC846/ jsou další grafy.

VIRGO & HOWKING:

Tak pravdepodobne jen nekldo zaspal u korekce. Podle CHMU.cz se pry vychyluji ty druzice uplne bezne, ale o kousek a doladuje se to datove na zemi. Takze pravdepodobne se jedna o upravu obezne drahy provedenou za pomoci trysek, jen nekdo v Darmstadtu zaspal svoji sluzbu a nestihl tak korekci vcas... :-)

Cornell University Library
KIC 8462852: Will the Trojans return in 2021?
(Submitted on 23 May 2017)

"[…] 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

další komentáře od prof. Davida Kippinga https://twitter.com/david_kipping

HOWKING: Kleplo? Tyjo to je hodně, ale HODNĚ scifi! :-DD

Jinak se předběžně omlouvám za neaktivitu, zítra mi začíná dovča na jihu, ale teprve dnes jsem
buknul bydlení, takže teď vůbec nestíhám koukat do vesmíru (ach jo - Tabby's Star!!!!).
Ale když všechno dobře půjde, příště se přihlásím z pláže.

PLS: Pokud budete mít čas a chuť, vkládejte cokoliv nového, i když nebudu stíhat sledovat aktuální dění, minimálně jednou denně sem aspoň nakouknu.

A ještě lépe na g+, pokud tam někdo je.
Vladimir Pecha - Google+
https://plus.google.com/113909043605186374111/palette

Mějte se krásně! Prosím, veškeré nové informace o Tabby mají prioritu 1
Ale děje se toho hodně i jinde... :-)

Někdo kopl do Zeměkoule.
Můžete se na chmi.cz kouknout sami :-D

VIRGO: Pátý průlet úspěšně absolvován (pátek 8h SELČ).
Všechny přístroje i JunoCam nabíraly data. První snímky ke stažení:
JunoCam : Processing | Mission Juno
https://www.missionjuno.swri.edu/junocam/processing

PRJ 19/05 - proc. J. Majora

VIRGO: Čerstvé info z první ruky (Jasona Wrighta)!

Tabby's Star is dimming right now (archived video of chat with Jason Wright)
https://www.youtube.com/watch?v=eYpIGZS8nJc


Astronomers scramble as ‘alien megastructure’ star dims again | New Scientist
https://www.newscientist.com/...2131871-astronomers-scramble-as-alien-megastructure-star-dims-again/

The most famously weird star in our galaxy is acting up again. On Friday, 19 May, Tabby’s star began to dim,
carrying on a history of mysterious dips in brightness. Astronomers are scrambling to point as many telescopes
as possible at the star, which is 1,300 light-years away in the constellation Cygnus, to decipher its strange signal.

In 2015, a team of astronomers led by Yale’s Tabetha Boyajian saw the light from the star KIC 8462852 suddenly and
repeatedly dip in brightness. The star dimmed by up to 22 per cent before it returned to normal.

Then, in 2016, a review of old photographic plates revealed that KIC 8462852 dimmed by 14 per cent between 1890 and 1989.
The star, nicknamed Tabby’s star after Boyajian, faded by another 3 per cent over the four years it was observed by t
he Kepler space observatory.

Astronomers have come up with a huge variety of different potential explanations for the star’s strange behaviour.
Some say it could be because of its interior dynamics, some say it could be surrounded by a swarm of asteroids and debris.
Or maybe it’s dimming because it devoured a planet at some time in the past. Most famously, some astronomers have said that
the dimming could be caused by an orbiting alien megastructure.

Because Tabby’s star has cultivated such an air of mystery, the response to its new dimming has been quick and enthusiastic,
with some telescope observations of the star already planned over the next few days. If we’re lucky, new observations may
just help us figure out what’s making KIC 8462852 dim (it’s probably not aliens).

!!!!!!!!!!!

Tabetha Boyajian‏: TabbysStar IS DIPPING! OBSERVE!!

Tabetha Boyajian on Twitter: "#TabbysStar IS DIPPING! OBSERVE!! @NASAKepler @LCO_Global @keckobservatory @AAVSO @nexssinfo @NASA @NASAHubble @Astro_Wright @BerkeleySETI"
https://twitter.com/tsboyajian/status/865530700128075780