HD 99904 and K2-18

The tick marks point to K2-18.

The exoplanet K2-18b was in the news:

https://skyandtelescope.org/astronomy-news/see-k2-18bs-host-sun/

https://www.space.com/space-exploration/search-for-life/doubts-mount-further-over-signs-of-alien-life-on-k2-18b-this-is-evidence-of-the-scientific-process-at-work