Kappa Reticuli, a white main-sequence star in Reticulum
Kappa Reticuli is a white main-sequence star in the constellation Reticulum. At 71 light years away, it shines at an apparent visual magnitude of 4.71.
Kappa Reticuli (HIP 16245)
Kappa Reticuli is a white main-sequence star in the constellation Reticulum. At 71 light years away, it shines at an apparent visual magnitude of 4.71. Kappa Reticuli is the primary component of a multiple-star system. The star's age is estimated to be 1.8 billion years but is certainly no less than 1.5 billion years and no greater than 2.1 billion years. The iron abundance of Kappa Reticuli is -0.1 (79.4% of the Sun). It is moving through the Galaxy at a speed of 56.4 km/s relative to the Sun. Its projected Galactic orbit carries it between 18,700 and 27,300 light years from the center of the Galaxy.
Sky position: RA 3h 29.4m, Dec -62° 56.4'
Common designations: Kappa Reticuli, HIP 16245, HD 22001, Gliese 9118 A
Brightest stars in Reticulum:
(list all)
| Rank | Mag. | Star |
| 1 | 3.33 | Alpha Reticuli |
| 2 | 3.84 | Beta Reticuli |
| 3 | 4.44 | Epsilon Reticuli |
| 4 | 4.48 | Gamma Reticuli |
| 5 | 4.56 | Delta Reticuli |
6
| 4.71
) Kappa Reticuli
| Rank | Mag. | Star |
| 7 | 4.97 | Iota Reticuli |
| 8 | 5.24 | Zeta-2 Reticuli |
| 9 | 5.24 | Eta Reticuli |
| 10 | 5.45 | HR 1340 |
| 11 | 5.53 | Zeta-1 Reticuli |
| 12 | 5.74 | HR 1435 |
| 13 | 5.79 | HR 1475 |
| 14 | 5.81 | HR 1092 |
| 15 | 5.88 | Theta Reticuli |
| 16 | 5.94 | HR 1416 |
| 17 | 6.03 | HR 1014 |
Vistas of Many Worlds
A Journey Through Space and Time
Galactic Orbit of Kappa Reticuli
(compared to the Sun)
E
ccentricity: 18.8% vs. 16.0%Angle φ : -115.8°vs. 26.0°
Semi-major axis : 7,042 pc vs. 8,686 pc
Semi-minor axis: 6,917 pc vs. 8,574 pc
Focus-to-center
: 1,320 pcvs. 1,388 pcSemilatus rectum : 6,794 pc vs. 8,464 pc
Perigalacticon: 5,721 pc vs. 7,297 pc
Apogalacticon
: 8,362 pcvs. 10,074 pcSome Tabulated XHIP Data for Kappa Reticuli
(see also: SIMBAD)
Astrometry
2007A&A...474..653V
| Position | Proper Motion | |
| Right Ascension: | 52.34244324° ±0.12 mas | 382.70 ±0.90 mas/yr. |
| Declination: | -62.93843427° ±0.11 mas | 374.10 ±0.90 mas/yr. |
| Galactic Longitude: | 278.35253437° | -526.86 mas/yr. |
| Galactic Latitude: | -45.93634937° | 93.95 mas/yr. |
Parallax: 46.12 ± 0.13 mas
Spectrography
Spectral Type: F3V 2006AJ....132..161G.
Radial Velocity: 12.50 ±0.40 km/s [A rating] 2006AstL...32..759G.
Iron Abundance [Fe/H]:
-0.10 ±0.02 dex
2011A&A...530A.138C, 2005ApJS..161..444T, 1996A&A...314..191G, 1993A&A...275..101E.
Photometry
| band | magnitude | Abs. Mag. |
| U | ||
| B | 5.12 | 3.44 |
| V | 4.71 | 3.03 |
| R | ||
| I | 4.27 | 2.59 |
| J | ||
| H | ||
| K |
B-V: +0.41 V-I: +0.44
Derivations
Heliocentric distance: 21.68 pc (0.3% margin of error)
Galactocentric distance: 7,398 pc
Transverse velocity: 55.0 km/s
3D heliocentric position and motion:
|
toward: |
Galactic center | Galactic rotation | North Galactic Pole |
| Position ( X, Y, Z) | 2.2 pc | -14.9 pc | -15.6 pc |
| Velocity (U, V, W) | -51.3 km/s | -23.3 km/s | -2.3 km/s |