Gamma Ophiuchi

[11] The star is visible to the naked eye with an apparent visual magnitude of +3.75.

[3] Based upon an annual parallax shift of 31.73 mas as seen from Earth, it is located 103 light years from the Sun.

[12] This is an A-type main sequence star with a stellar classification of A0 V.[4] Gray et al. (2003) lists a classification of A1VnkA0mA0,[5] indicating it is of type A1 V with the calcium K-line and metallic lines of an A0 star.

It is approximately 184[8] million years old and is spinning rapidly with a projected rotational velocity of 220 km/s.

[7] The star shines with 29[4] times the luminosity of the Sun, which is being emitted from its outer atmosphere at an effective temperature of 9506 K.[4] It is radiating an excess emission of infrared, suggesting the presence of a circumstellar disk of dust at an orbital radius of 64 AU from the host star.