27 October 2017
Astronomers find system with six planets
.... HD 3445 is a G0V type star. Our Sun for example is a G2V type star (the 0 represents the hottest stars of a given class, so the Sun is cooler than HD 34445). HD 34445 is also slightly more massive than the Sun and around 2 to 4 billion years older...
14 December 2017
AI detects eighth planet orbiting distant sun
..., and it whizzes round its host star once every 14.4 days. All of the planets in the Kepler-90 system are closer to their central star than the Earth is to the Sun. Because Kepler-90i orbits so close to its host star, its average...
23 May 2018
First permanent extrasolar asteroid found near Jupiter
... it was found that 2015 BZ509 shares an orbit with Jupiter and travels around the Sun at the same speed as the giant gas planet, but it does so in the opposite direction. This is called a retrograde orbit and although asteroids with retrograde...
17 October 2019
Hubble gets a good look at interstellar visitor Comet 2I/Borisov
... of our Solar System, with its innermost edge at about 2000 times the distance between the Earth and the Sun. 2I/Borisov and ‘Oumuamua are only the beginning of the discoveries of interstellar objects paying a brief visit to our Solar System. There...
October 2015
Finding Earth-like worlds: the tale of how Kepler-452b was discovered
... had a moment of pause, because when we first looked at the star’s parameters, although it was about the same temperature as the Sun, it had been assigned a radius of only 80% the size of the Sun. That seemed a little off to us. It’s quite unexpected...
03 December 2015
Rare Lithium-Rich Star Discovered
...is a lithium-abundant, intermediate-mass giant start (1.64 mass of the Sun), located about 5300 light years from Earth. Lithium-rich stars ... theory. Researchers that discovered KIC 9821622 emphasize the need for further observation of this and other...
