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

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Brightest stars in Reticulum:
(list all)

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

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


Galactic Orbit of Kappa Reticuli
(compared to the Sun)

Eccentricity: 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 pc vs. 1,388 pc

Semilatus rectum : 6,794 pc vs. 8,464 pc

Perigalacticon: 5,721 pc vs. 7,297 pc

Apogalacticon: 8,362 pc vs. 10,074 pc
 
Some 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

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