The majority of the sun's closest stellar neighbors are red dwarfs. The proximity of the star gives the sky a salmon hue, and the other planets are so close that they appear in the sky, much like our own moon. At this temperature, metals vaporize -- so you wouldn't want to live on WASP-189 b. Stock Photo, Ancient Greek vase, school lesson, writing and music Stock Photographs, Black image of an ancient lyre musical instrument on a white background. Meanwhile, the star is larger than our sun and more than 2,000 degrees hotter. Astronomers who study stars used "starquakes" to characterize the star, which provided critical information about the planet. Illustration by Lorenzo Santinelli. Astronomy Picture of the Day . Kepler-10b orbits at a distance more than 20 times closer to its star than Mercury is to our own sun. A super-telescope made the first direct observation of an exoplanet using optical interferometry. This is an artist's impression of exoplanet WASP-189 b orbiting its host star. HD-106906b is a gaseous planet 11 times more massive than Jupiter. This artist's illustration shows newly discovered exoplanet K2-288Bb, 226 light-years away and half the size of Neptune. An artistic impression of the planet Kepler-1647b, which is nearly identical to Jupiter in both size and mass. While the exoplanet is a gas giant, similar to Jupiter in our solar system, it's much hotter because it orbits very close to its host star. The tightly packed system is home to five planets that range in size, the smallest is comparable to the size of Mercury and the largest to Venus, orbiting their sun in less than 10 days. This artist's impression shows a view of the surface of the planet Proxima b orbiting the red dwarf star Proxima Centauri, the closest star to the Solar System. Astronomers discovered two planets less than three times the size of Earth orbiting sun-like stars in a crowded stellar cluster approximately 3,000 light-years from Earth in the constellation Cygnus. It is now the second-closest temperate planet to be detected, after Proxima b. WASP-121b, 880 light-years away, is considered a hot Jupiter-like planet. It is similar in size to Earth, is a little cooler than Earth's temperature and is in the habitable zone of the star, meaning liquid water (and even oceans) could be on the surface. Lyra. Stock Photo, Lyra Constellation 3D Illustration Picture, Lyra Constellation 3D Illustration Stock Photo, Traditional Greek instrument called Thrakian lyra Stock Photography, Woman exercising on lyra Stock Photography, Greek traditional musical instrument, Thrakian lyra. The planet weighs about 6.6 times the mass of Earth and is shown passing in front of LHS 1140. The host star is a hot, rapidly rotating A-type star that is about 2.5 times more massive and almost twice as hot as our sun. It can measure changes in light as planets orbit their stars with exceptional precision, which can help reveal details about the planets. Credit: ESA, M. Kornmesser (ESO), Aaron E. Lepsch (ADNET Systems Inc.), Britt Griswold (Maslow Media Group), NASA's Goddard Space Flight Center & Cornell University. The core (dark blue) might be made of an iron-carbon alloy. The planet, called WASP-189 b, is considered to be one of the hottest and most extreme exoplanets ever discovered. The red sphere is the M-dwarf star the exoplanet orbits.