Articles tagged "binary star"

binary art

Our Sun started its life with a binary companion, new study suggests

A new theory published this week in the AAS' The Astrophysical Journal Letters suggests that our Sun may once have had a binary companion of similar mass. If confirmed, the presence of an early stellar companion increases the likelihood that the Oort cloud was...

August 19, 2020

new type of pulsating star

Amateur astronomers discover new type of rare, pulsating star

An unusual tear-drop shaped star that only pulsates on one side has been discovered by amateur astronomers, who saw the anomaly in data taken by NASA's Transiting Exoplanet Survey Satellite (TESS). It is reportedly the first of its kind, and scientists are...

March 09, 2020

all stars born in pairs

Our sun had a twin when it was born, study

According to a new analysis by a theoretical physicist from UC Berkley and a radio astronomer from the Smithsonian Astrophysical Observatory at Harvard University, our sun, as well as every other sunlike star in the universe, had a twin when it was born. Astronomers...

June 14, 2017

Binary_star_system_Eta_Carinae

Astronomers bring the third dimension to a doomed star's outburst

In the middle of the 19th century, the massive binary system Eta Carinae underwent an eruption that ejected at least 10 times the sun's mass and made it the second-brightest star in the sky. Now, a team of astronomers has used extensive new observations to create th

July 09, 2014

758215 twin suns

The scientists are puzzled with phenomenon of "Two Suns"

Over 80% of all solar systems have multiple suns, so is it possible that we live in a binary solar system with two suns as well? Recent discoveries point to the existence of an old brown dwarf. Our solar system is surrounded by a vast collection of icy bodies called...

March 06, 2011