BARNARD’S STAR B: ‘Super-Earth’ found orbiting Sun’s nearest single star
Posted on : 14 Jan 2020Views: 288
- Astronomers have discovered a frozen planet with a mass over three times that of the Earth, orbiting the closest solitary star to the Sun.
- According to researchers from Queen Mary University of London, the potentially rocky planet, known as Barnard’s star b, is a ‘super-Earth’ and orbits around its host star once every 233 days.
- The planet is a habitable zone in which liquid water, and possibly life, could exist.
- It lies at a distant region from the star known as the ‘snow line’.
- Its surface temperature is estimated to be around -170°C but at the same time researchers have told that if the planet has a substantial atmosphere the temperature could be higher and conditions potentially more hospitable.
- Barnard's Star is a very-low-mass red dwarf about 6 light-years away from Earth in the constellation of Ophiuchus.
- It is the fourth nearest known individual star to the Sun and the closest star in the Northern Celestial Hemisphere.
Article Related Questions
Consider the following statements regarding BARNARD’S STAR B
1.It is a frozen planet.
2.The planet is not a habitable zone as it does not support water or life.
Which of the following statement is/are correct?
3.Both 1 and 2
4.Neither 1 nor 2
Right Ans : 1 only