RA 61.6617° · Dec 20.3030° · exoplanet
35 more points to reach Mythic.
HD 284149 AB b is an anomaly exoplanet. It lies about 384.2 light-years from Earth, shines at apparent magnitude 9.57, has an equilibrium temperature near 2,395 K and spans roughly 12 Earth radii.
So hot that iron vaporises on the dayside, blows around to the night side and rains back down as molten metal.
At apparent magnitude 9.57, a small backyard telescope will bring it into view.
Like any astronomical target, HD 284149 AB 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.
HD 284149 AB b scores 85 points on Spacedle's rarity scale, which places it in the anomaly tier. Another 35 points would lift it into a rarer tier.
That score comes from 7 science badges — Confirmed exoplanet, Gas giant, Ultra-hot Jupiter, Circumbinary (orbits both stars), Directly imaged, Orbits a Sun-like star 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.