Supriya Ghosh (Editor)

53 Aquarii

Updated on
Share on FacebookTweet on TwitterShare on LinkedInShare on Reddit
Magnitude  6.35
Constellation  Aquarius
53 Aquarii
People also search for  107 Aquarii, 106 Aquarii, 99 Aquarii

Elite dangerous 53 aquarii

53 Aquarii (abbreviated 53 Aqr) is a binary star system in the equatorial constellation of Aquarius. 53 Aquarii is its Flamsteed designation though the star also bears the Bayer designation of f Aquarii. The combined apparent visual magnitude of the pair is a 5.56, making it just visible to the naked eye in dark suburban skies. Based upon an annual parallax shift of 49.50 milliarcseconds for the first component, this system is located at a distance of approximately 65 light-years (20 parsecs) from Earth.

This is a wide binary star system with a projected separation of 100 astronomical units; indicating that the two stars are at least this distance apart. The primary component is a solar-type main sequence star with a stellar classification of G1 V. It has about 99% of the Sun's mass, 111% of the Sun's radius, and shines with 139% of the luminosity of the Sun. This energy is being emitted from an outer envelope at an effective temperature of 5,922 K, giving it the golden hue of a G-type star. An examination of the primary component with the Spitzer space telescope failed to detect any infrared excess that might otherwise be an indication of a circumstellar debris disk.

The companion is a slightly cooler star with an effective temperature of 5,811 K. It has a stellar classification of G5 V Fe–0.8 CH–1, indicating it is a chemically peculiar G-type main sequence star showing an under-abundance of iron and the molecule CH in its spectrum. As of 2008, it has an angular separation of 1.325 arcseconds along a position angle of 30.9° from the primary.

This system is coeval with the Castor Moving Group of stars that share a common motion through space; hence it is a candidate member of that association. This suggests that the system is young; its estimated age is in the range of 180 to 370 million years, based upon the spectrum and X-ray luminosity, respectively.


53 Aquarii Wikipedia