RA 268.4616° · Dec -33.9903° · exoplanet
7 more points to reach Rare.
MOA-2009-BLG-387L b is an uncommon exoplanet. It lies about 18,558.3 light-years from Earth, spans roughly 13.2 Earth radii, weighs about 830 Earth masses and completes an orbit every 1,980 days.
Too light to be solid rock and too heavy to be all gas: most likely a deep global ocean or a thick steamy envelope over a rocky core.
Like any astronomical target, MOA-2009-BLG-387L 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.
MOA-2009-BLG-387L b scores 27 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 7 points would lift it into a rarer tier.
That score comes from 4 science badges — Confirmed exoplanet, Distant (over 1,000 light-years), Gas giant and Found by microlensing — 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.