If "121617" is a publication ID rather than a star name, it may refer to:
: A 2018 paper in the Journal of Biomedical Optics regarding "Transvaginal fast-scanning optical-resolution photoacoustic endoscopy" . 121617
: A book listing for " Imperial Mughal Painting " by Cary Welch (Stock ID 121617). A dust arc and non-Keplerian gas kinematics in HD 121617 If "121617" is a publication ID rather than
: Observations revealed an asymmetric arc that is roughly 40% brighter than the rest of the ring, potentially trapped by gas pressure. 121617
: Research has identified deviations from standard orbital motion (Keplerian rotation) in the disk's gas kinematics. Other Possible References
: It hosts one of the most massive gas-rich debris disks detected to date.