Artist's depiction of exoplanet 51 Pegasi b
October 6, 1995, European scientists Michel Mayor and Didier Queloz announced the discovery of a planet orbiting another star. Planet 51 Pegasi b is about half the size of Jupiter and a "year" is just four Earth days. And it orbits its sun 51 Pegasi at a distance of 0.05 AU (astronomical units) which is about 1/6 the distance between Mercury and our sun. That means the surface temperature is around a sultry 2-3000 Kelvin.
In the 21 years since, over 1800 exoplanets have been discovered, including (perhaps) Tatooine, Vulcan and Krypton.
How to find Star 51 Pegasi