RA 88.5172° · Dec -60.0237° · exoplanet
14 more points to reach Anomaly.
HD 40307 g is an epic exoplanet. It lies about 42.2 light-years from Earth, shines at apparent magnitude 7.17, has spectral type K2.5 V and has an equilibrium temperature near 255 K.
Sits where it's neither too hot nor too cold — liquid water could exist on a surface here.
At apparent magnitude 7.17, it is an easy target for binoculars.
Like any astronomical target, HD 40307 g 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 40307 g scores 64 points on Spacedle's rarity scale, which places it in the epic tier. Another 14 points would lift it into a rarer tier.
That score comes from 5 science badges — Confirmed exoplanet, In the habitable zone, Sub-Neptune, Richly packed system and Disputed — it may not be there at all — 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.