RA 93.0578° · Dec -14.6493° · exoplanet
3 more points to reach Epic.
HIP 29442 d is a rare exoplanet. It lies about 222.4 light-years from Earth, shines at apparent magnitude 9.49, has an equilibrium temperature near 920 K and spans roughly 1.54 Earth radii.
It orbits closer to its star than Mercury does to the Sun, completing a lap in less time than Mercury takes.
At apparent magnitude 9.49, a small backyard telescope will bring it into view.
Like any astronomical target, HIP 29442 d 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.
HIP 29442 d scores 47 points on Spacedle's rarity scale, which places it in the rare tier. Another 3 points would lift it into a rarer tier.
That score comes from 5 science badges — Confirmed exoplanet, Super-Earth, Tidally locked, Denser than iron and Multi-planet system — 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.