LIVING CORAM DEO
Monday, 22 January, 2018
The Most Mysterious Star In The Galaxy.

The Most Mysterious Star In The Galaxy

The Most Mysterious Star In The Galaxy.

Kepler-Input Catalogue (KIC) 8462852, also Tabby’s Star or Boyajian’s Star, is an F-type main-sequence star located in the constellation Cygnus approximately 1,276.6 light-years from Earth. Unusual light fluctuations of the star were discovered by citizen scientists as part of the Planet Hunters project, and in September 2015 astronomers and citizen scientists associated with the project posted a preprint of a paper on arXiv describing the data and possible interpretations. The discovery was made from data collected by the Kepler space telescope, which observes changes in the brightness of distant stars to detect exoplanets.

KIC 8462852 is northeast between NGC 6866 and ο¹ Cygni.

Several hypotheses have been proposed to explain the star’s large irregular changes in brightness as measured by its unusual light curve, but none to date fully explain all aspects of the curve. The leading hypothesis, based on a lack of observed infrared light, posits a swarm of cold, dusty comet fragments in a highly eccentric orbit. Another hypothesis is that of a large number of small masses in “tight formation” orbiting the star. It has been speculated that the changes in brightness could be signs of activity associated with intelligent extraterrestrial life constructing a Dyson swarm. The SETI Institute’s initial radio reconnaissance of KIC 8462852, however, found no evidence of technology-related radio signals from the star. KIC 8462852 is not the only star that has large irregular dimming. However, all other such stars are young stellar objects called YSO dippers that have different dimming patterns. An example of such an object is EPIC 204278916.

Read Article Here:

http://www.bbc.com/earth/story/20170512-the-most-mysterious-star-in-the-galaxy

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