Kaus Media, an orange giant star in Sagittarius
Kaus Media is an orange giant star in the constellation Sagittarius. At 347 light years away, it is the 117th brightest star in the Earth's sky, where it shines at an apparent visual magnitude of 2.72.
Kaus Media (HIP 89931)
Kaus Media is an orange giant star in the constellation Sagittarius. At 347 light years away, it is the 117th brightest star in the Earth's sky, where it shines at an apparent visual magnitude of 2.72. Kaus Media is the primary component of a multiple-star system. The iron abundance of Kaus Media is -0.02 (95.5% of the Sun). It is moving through the Galaxy at a speed of 28.7 km/s relative to the Sun. Its projected Galactic orbit carries it between 23,500 and 27,600 light years from the center of the Galaxy. It will come closest to the Sun 2.6 million years from now when it will brighten to magnitude 1.96 from a distance of 245 light years.
Sky position: RA 18h 21.0m, Dec -29° 49.8'
Common designations: Kaus Media, Delta Sagittarii, 19 Sagittarii, HIP 89931, HD 168454, HR 6859, Gliese 9626
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Brightest stars in Sagittarius:
(list all)
| Rank | Mag. | Star |
| 1 | 1.79 | Kaus Australis |
| 2 | 2.05 | Nunki |
| 3 | 2.60 | Ascella |
4
| 2.72
) Kaus Media
| Rank | Mag. | Star |
| 5 | 2.82 | Kaus Borealis |
| 6 | 2.88 | Albaldah |
| 7 | 2.98 | Nash |
| 8 | 3.10 | Eta Sagittarii |
| 9 | 3.17 | Phi Sagittarii |
| 10 | 3.32 | Tau Sagittarii |
| 11 | 3.52 | Xi-2 Sagittarii |
| 12 | 3.76 | Manubrij |
| 13 | 3.84 | Polis |
| 14 | 3.92 | Rho-1 Sagittarii |
| 15 | 3.96 | Arkab Prior |
| 16 | 3.96 | Rukbat |
| 17 | 4.12 | Iota Sagittarii |
Hover over other bright stars to identify or click to jump.
Galactic Orbit of Kaus Media
(compared to the Sun)
E
ccentricity: 8.1% vs. 16.0%Angle φ : -32.1°vs. 26.0°
Semi-major axis : 7,843 pc vs. 8,686 pc
Semi-minor axis: 7,818 pc vs. 8,574 pc
Focus-to-center
: 632 pcvs. 1,388 pcSemilatus rectum : 7,793 pc vs. 8,464 pc
Perigalacticon: 7,211 pc vs. 7,297 pc
Apogalacticon
: 8,476 pcvs. 10,074 pcSome Tabulated XHIP Data for Kaus Media
(see also: SIMBAD)
Astrometry
2007A&A...474..653V
| Position | Proper Motion | |
| Right Ascension: | 275.24842359° ±0.16 mas | 30.10 ±0.40 mas/yr. |
| Declination: | -29.82803949° ±0.11 mas | -26.40 ±0.40 mas/yr. |
| Galactic Longitude: | 3.00091271° | -9.69 mas/yr. |
| Galactic Latitude: | -7.15447553° | -38.85 mas/yr. |
Parallax: 9.38 ± 0.18 mas
Spectrography
Spectral Type: K2.5IIIa CN0.5 1989ApJS...71..245K.
Radial Velocity: -20.40 ±0.10 km/s [A rating] 2006AstL...32..759G.
Iron Abundance [Fe/H]:
-0.02 dex
1995AJ....110.2968L, 1990ApJS...74.1075M.
Photometry
| band | magnitude | Abs. Mag. |
| U | ||
| B | 4.10 | -1.04 |
| V | 2.72 | -2.42 |
| R | ||
| I | 1.51 | -3.63 |
| J | 0.51 | -4.63 |
| H | -0.16 | -5.29 |
| K | -0.30 | -5.44 |
B-V: +1.38 V-I: +1.21
Derivations
Heliocentric distance: 106.56 pc (1.9% margin of error)
Galactocentric distance: 7,294 pc
Transverse velocity: 20.2 km/s
3D heliocentric position and motion:
|
toward: |
Galactic center | Galactic rotation | North Galactic Pole |
| Position ( X, Y, Z) | 105.6 pc | 5.5 pc | -13.3 pc |
| Velocity (U, V, W) | -22.4 km/s | -6.1 km/s | -16.9 km/s |