HD 198404 (HR 7975) is a star in the equatorial constellation Delphinus. It has an apparent magnitude of 6.19, allowing it to be faintly seen with the naked eye. Parallax measurements place the object at a distance of 395 light years and it is approaching the Solar System with a heliocentric radial velocity of .
HD 198404 has a simple stellar classification of K0, indicating that it is a K-type star. Its enlarged diameter of and its low surface gravity suggest that it has evolved away from the main sequence to become a giant star. HD 198404 has 3.12 times the mass of the Sun and radiates at 56 times the luminosity of the Sun from its photosphere at an effective temperature of , giving it a yellowish orange hue. The star is metal enriched, having an iron abundance 48% greater than that of the Sun.
HD 198404 has an optical companion located away along a position angle of (as of 2014).
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