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| * Anomalous 22% dimming * nicknamed after Tabetha F. Boyajian, LSU Baton Rouge, the astronomer who pushed for further observation * NASA: October 4, 2017: [[ https://www.jpl.nasa.gov/news/news.php?feature=6963 | Mysterious Dimming of Tabby's Star May Be Caused by Dust ]] |
* an [[ https://en.wikipedia.org/wiki/F-type_main-sequence_star | F3V ]] [[ https://en.wikipedia.org/wiki/KIC_8462852 | star ]] in Cygnus . * Anomalous 22% dimming observed by the [[ http://kepler.nasa.gov/ | Kepler Space Telescope ]] * nicknamed after [[ https://en.wikipedia.org/wiki/Tabetha_S._Boyajian | Tabetha S. Boyajian ]], LSU Baton Rouge, the astronomer who pushed for further observation * NASA: October 4, 2017:[[https://www.jpl.nasa.gov/news/news.php?feature=6963 | Mysterious Dimming of Tabby's Star May Be Caused by Dust ]] |
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| * Tabor, Abby (5 October 2017). [[ https://phys.org/news/2017-10-scientific-quest-kepler-enigmatic.html | "The scientific quest to explain Kepler's most enigmatic find" Phys.org ]] * Some speculated a "Dyson Sphere" (which Dyson called a "shell", a collection of synchronized orbiting objects, and attributed to 1930's fantasy writer [[ | Olaf Stapledon]]. |
* Tabor, Abby (5 October 2017). [[ https://phys.org/news/2017-10-scientific-quest-kepler-enigmatic.html | "The scientific quest to explain Kepler's most enigmatic find" ]] So, Tabby's star is interesting, and we have more to learn. Will the dust cloud eventually collapse into a planetoid, millions of years from now? Not enough data to model that yet, but we can gather plenty more over the coming centuries. ----- * Some speculated a "Dyson Sphere"... which Freeman Dyson calls a "shell", a collection of synchronized orbiting objects, and attributed to the 1937 novel [[https://en.wikipedia.org/wiki/Star_Maker | Star Maker ]] by [[ https://en.wikipedia.org/wiki/Olaf_Stapledon | Olaf Stapledon]]. "Sphere" is a misnomer from a sloppy journalist, implying a solid shell. Without a source of internal support, no shell made of any material we know about can support itself against the gravity of a star. |
KIC 8462852, Tabby's Star
Anomalous 22% dimming observed by the Kepler Space Telescope
nicknamed after Tabetha S. Boyajian, LSU Baton Rouge, the astronomer who pushed for further observation
NASA: October 4, 2017:Mysterious Dimming of Tabby's Star May Be Caused by Dust
From January to December 2016, the researchers observed Tabby's Star in ultraviolet using Swift, and in infrared using the Spitzer Space Telescope.
- The smoking gun: Researchers found less dimming in the infrared light from the star than in its ultraviolet light. Any object larger than dust particles would dim all wavelengths of light equally when passing in front of Tabby's Star.
Meng, Huan Y.A.; et al. (3 October 2017). "Extinction and the Dimming of KIC 8462852". The Astrophysical Journal. 847 (2): 131. doi:10.3847/1538-4357/aa899c
Tabor, Abby (5 October 2017). "The scientific quest to explain Kepler's most enigmatic find"
So, Tabby's star is interesting, and we have more to learn. Will the dust cloud eventually collapse into a planetoid, millions of years from now? Not enough data to model that yet, but we can gather plenty more over the coming centuries.
Some speculated a "Dyson Sphere"... which Freeman Dyson calls a "shell", a collection of synchronized orbiting objects, and attributed to the 1937 novel Star Maker by Olaf Stapledon. "Sphere" is a misnomer from a sloppy journalist, implying a solid shell. Without a source of internal support, no shell made of any material we know about can support itself against the gravity of a star.