The discovery images were taken in 2011 and common proper motion was confirmed in 2012 as part of the
Strategic Explorations of Exoplanets and Disks with Subaru (SEEDS) survey. The SEEDS survey aims to detect and characterize giant planets and circumstellar disks using the 8.2-meter
Subaru Telescope. In February 2013 Kuzuhara et al. submitted the discovery paper to
The Astrophysical Journal, and in September it was published. A follow-up study published in the October 2013 edition of the Astrophysical Journal confirmed methane absorption in the infrared H band, the first time this has been done for a directly imaged planet that formed within a disk. In January 2025 Mâlin et al. published a paper confirming the detection of
ammonia, using the
Mid-Infrared Instrument aboard the
James Webb Space Telescope. ==Properties==