Updates throughout with details on capital raise, KKR, context on SpaceX

By Gianluca Lo Nostro

June 15 (Reuters) - German satellite maker OHB OHBG.DE announced on Monday plans for a €500 million ($581 million) rights issue, the first space company to tap public markets after SpaceX's record $2 trillion listing lifted investor appetite for the sector.

The Fuchs family, OHB's majority shareholder with a 65.4% stake, and KKR KKR.N-owned Orchid Lux Holdco will waive their subscription rights for the offering, OHB said, though details on pricing and volume remain undisclosed.

KKR, which holds a 28.6% stake in OHB, also plans to sell shares in a secondary placement but will retain most of its holding, according to a bookrunner for the deal. The Fuchs family will not sell its shares.

Elon Musk's SpaceX surged past $2 trillion in its landmark initial public offering on Friday, sharpening investor focus on space stocks. Analysts believe the IPO has intensified interest in the sector, with expectations of higher valuations.

Based on OHB's closing price of €410 on Friday, the planned capital raise would equate to roughly 1.2 million new shares, representing about 6% of current share capital, according to Reuters calculations. If offered at a lower price, the free float, currently at 5.7%, could increase by between 7% and 8%.

OHB said proceeds from the rights issue will go toward mergers and acquisitions, investments in launch vehicles, and ramping up industrialisation of production facilities.

Shares of the Bremen-based company, which have surged more than threefold this year, fell 10% by 0851 GMT.

($1 = 0.8609 euros)