Kaffaljidhma, a white main-sequence star in Cetus
Kaffaljidhma is a white main-sequence star in the constellation Cetus. At 80 light years away, it is the 276th brightest star in the Earth's sky, where it shines at an apparent visual magnitude of 3.47.
Kaffaljidhma (HIP 12706)
Kaffaljidhma is a white main-sequence star in the constellation Cetus. At 80 light years away, it is the 276th brightest star in the Earth's sky, where it shines at an apparent visual magnitude of 3.47. Kaffaljidhma is a multiple-star system. It is moving through the Galaxy at a speed of 24.4 km/s relative to the Sun. Its projected Galactic orbit carries it between 22,400 and 34,700 light years from the center of the Galaxy.
Sky position: RA 2h 43.3m, Dec +3° 14.4'
Common designations: Kaffaljidhma, Gamma Ceti, 86 Ceti, HIP 12706, HD 16970, Gliese 9098 A
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Brightest stars in Cetus:
(list all)
| Rank | Mag. | Star |
| 1 | 2.04 | Diphda |
| 2 | 2.54 | Alpha Ceti |
| 3 | 3.46 | Dheneb |
4
| 3.47
) Kaffaljidhma
| Rank | Mag. | Star |
| 5 | 3.49 | Tau Ceti |
| 6 | 3.56 | Deneb Kaitos Shemali |
| 7 | 3.60 | Theta Ceti |
| 8 | 3.74 | Baten Kaitos |
| 9 | 3.99 | Upsilon Ceti |
| 10 | 4.08 | Delta Ceti |
| 11 | 4.24 | Pi Ceti |
| 12 | 4.27 | Mu Ceti |
| 13 | 4.30 | Xi-2 Ceti |
| 14 | 4.36 | Xi-1 Ceti |
| 15 | 4.44 | 7 Ceti |
| 16 | 4.55 | 2 Ceti |
| 17 | 4.66 | Chi Ceti |
Hover over other bright stars to identify or click to jump.
Galactic Orbit of Kaffaljidhma
(compared to the Sun)
E
ccentricity: 21.7% vs. 16.0%Angle φ : 54.5°vs. 26.0°
Semi-major axis : 8,759 pc vs. 8,686 pc
Semi-minor axis: 8,551 pc vs. 8,574 pc
Focus-to-center
: 1,898 pcvs. 1,388 pcSemilatus rectum : 8,348 pc vs. 8,464 pc
Perigalacticon: 6,862 pc vs. 7,297 pc
Apogalacticon
: 10,657 pcvs. 10,074 pcSome Tabulated XHIP Data for Kaffaljidhma
(see also: SIMBAD)
Astrometry
2007A&A...474..653V
| Position | Proper Motion | |
| Right Ascension: | 40.82551857° ±0.58 mas | -146.10 ±0.71 mas/yr. |
| Declination: | 3.23617153° ±0.47 mas | -146.12 ±0.55 mas/yr. |
| Galactic Longitude: | 168.91925608° | -18.45 mas/yr. |
| Galactic Latitude: | -49.38190431° | -205.81 mas/yr. |
Parallax: 40.97 ± 0.63 mas
Spectrography
Spectral Type: A2Vn 2003AJ....126.2048G.
Radial Velocity: -4.90 ±0.90 km/s [A rating] 2006AstL...32..759G.
Iron Abundance [Fe/H]:
n/a
Photometry
band
magnitude
Abs. Mag.
U
B
3.56
1.63
V
3.47
1.53
R
3.50
1.56
I
3.50
1.56
J
3.24
1.30
H
3.10
1.17
K
3.08
1.14
B-V: +0.09 V-I: -0.03
Derivations
Heliocentric distance: 24.40 pc (1.5% margin of error)
Galactocentric distance: 7,416 pc
Transverse velocity: 23.9 km/s
3D heliocentric position and motion:
|
toward: |
Galactic center | Galactic rotation | North Galactic Pole |
| Position ( X, Y, Z) | -15.6 pc | 3.1 pc | -18.5 pc |
| Velocity (U, V, W) | 21.3 km/s | -2.0 km/s | -11.8 km/s |