RA 206.8135° · Dec 17.4572° · exoplanet
41 more points to reach Mythic.
tau Boo b is an anomaly exoplanet. It lies about 51.1 light-years from Earth, shines at apparent magnitude 4.49, has spectral type F7 V and has an equilibrium temperature near 1,682 K.
Its surface is almost certainly an ocean of molten rock, kept liquid by the star it hugs.
At apparent magnitude 4.49, it can be glimpsed with the unaided eye under dark skies.
Like any astronomical target, tau Boo b is best seen from a dark site away from city lights, and when it is above the horizon depends on your latitude and the time of year. The visibility panel above works out tonight's viewing window for your saved location.
tau Boo b scores 79 points on Spacedle's rarity scale, which places it in the anomaly tier. Another 41 points would lift it into a rarer tier.
That score comes from 8 science badges — Confirmed exoplanet, Gas giant, Lava world, Tidally locked, Blasted by starlight, Its star is visible to the naked eye, Two suns in its sky and Found before the year 2000 — each earned for a real, measurable property of the object. Rarity on Spacedle is never random: the more remarkable an object's astrophysics, the more badges it collects, the higher it scores, and the rarer it ranks.