44 Ophiuchi
44 Ophiuchi is a single star in the constellation Ophiuchus. It has the Bayer designation b Ophiuchi, while "44 Ophiuchi" is the Flamsteed designation. It is visible to the naked eye as a faint, white-hued star with an apparent visual magnitude of 4.16. The distance to this object is approximately 83.2 light years based on parallax. It is drifting closer to the Earth with a heliocentric radial velocity of -37.2 km/s, and is predicted to come within around 585,000 years from now. This is an Am star with a stellar classification of kA5hA9mF1III, indicating it has  the luminosity class of a giant star with a spectrum that matches an A5 star based on the calcium K line, and an A9 star from the hydrogen and metal lines. It is around a billion years old with 1.77 times the mass of the Sun and 1.9 times the Sun's girth. The star is radiating 13 times the Sun's luminosity from its photosphere at an effective temperature of 7,559 K. It retains a moderately high rotation rate, showing a projected rotational velocity of 78 km/s.