RA 247.8125° · Dec -24.5456° · exoplanet
38 more points to reach Mythic.
ROXs 42 B b is an anomaly exoplanet. It lies about 468.3 light-years from Earth, shines at apparent magnitude 14.66, has spectral type M0 and has an equilibrium temperature near 1,975 K.
Its surface is almost certainly an ocean of molten rock, kept liquid by the star it hugs.
At apparent magnitude 14.66, it takes a larger telescope or a long-exposure image to capture.
Like any astronomical target, ROXs 42 B 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.
ROXs 42 B b scores 82 points on Spacedle's rarity scale, which places it in the anomaly tier. Another 38 points would lift it into a rarer tier.
That score comes from 8 science badges — Confirmed exoplanet, Gas giant, Lava world, Eccentric orbit, Circumbinary (orbits both stars), Directly imaged, Orbits a red dwarf and Orbits beyond Neptune's distance — 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.