Kappa Cygni, a yellow giant star in Cygnus
Kappa Cygni is a yellow giant star in the constellation Cygnus. At 124 light years away, it is the 409th brightest star in the Earth's sky, where it shines at an apparent visual magnitude of 3.8.
Kappa Cygni (HIP 94779)
Kappa Cygni is a yellow giant star in the constellation Cygnus. At 124 light years away, it is the 409th brightest star in the Earth's sky, where it shines at an apparent visual magnitude of 3.80. The iron abundance of Kappa Cygni is +0.04 (109.6% of the Sun). It is moving through the Galaxy at a speed of 38.1 km/s relative to the Sun. Its projected Galactic orbit carries it between 19,600 and 24,700 light years from the center of the Galaxy. It will come closest to the Sun 745,000 years from now when it will brighten to magnitude 2.86 from a distance of 80 light years.
Sky position: RA 19h 17.1m, Dec +53° 22.2'
Common designations: Kappa Cygni, 1 Cygni, HIP 94779, HD 181276, HR 7328
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Brightest stars in Cygnus:
(list all)
| Rank | Mag. | Star |
| 1 | 1.25 | Deneb |
| 2 | 2.23 | Sadr |
| 3 | 2.48 | Gienah |
| 4 | 2.86 | Delta Cygni |
| 5 | 3.05 | Albireo A |
| 6 | 3.21 | Zeta Cygni |
| 7 | 3.72 | Xi Cygni |
| 8 | 3.74 | Tau Cygni |
| 9 | 3.76 | Iota Cygni |
10
| 3.80
) Kappa Cygni
| Rank | Mag. | Star |
| 11 | 3.80 | Omicron-1 Cygni |
| 12 | 3.89 | Eta Cygni |
| 13 | 3.94 | Nu Cygni |
| 14 | 3.96 | Omicron-2 Cygni |
| 15 | 3.98 | Rho Cygni |
| 16 | 4.01 | 41 Cygni |
| 17 | 4.22 | 52 Cygni |
Hover over other bright stars to identify or click to jump.
Galactic Orbit of Kappa Cygni
(compared to the Sun)
E
ccentricity: 11.4% vs. 16.0%Angle φ : -145.4°vs. 26.0°
Semi-major axis : 6,792 pc vs. 8,686 pc
Semi-minor axis: 6,748 pc vs. 8,574 pc
Focus-to-center
: 772 pcvs. 1,388 pcSemilatus rectum : 6,705 pc vs. 8,464 pc
Perigalacticon: 6,020 pc vs. 7,297 pc
Apogalacticon
: 7,565 pcvs. 10,074 pcSome Tabulated XHIP Data for Kappa Cygni
(see also: SIMBAD)
Astrometry
2007A&A...474..653V
| Position | Proper Motion | |
| Right Ascension: | 289.27545802° ±0.09 mas | 60.09 ±0.10 mas/yr. |
| Declination: | 53.36816073° ±0.09 mas | 122.83 ±0.12 mas/yr. |
| Galactic Longitude: | 84.40141837° | 136.34 mas/yr. |
| Galactic Latitude: | 17.85325179° | -10.43 mas/yr. |
Parallax: 26.27 ± 0.10 mas
Spectrography
Spectral Type: G9III 1989ApJS...71..245K.
Radial Velocity: -29.00 ±0.30 km/s [A rating] 2005A&A...430..165F.
Iron Abundance [Fe/H]:
0.04 dex
2011A&A...525A..71W, 2007A&A...475.1003H, 1990ApJS...74.1075M.
Photometry
| band | magnitude | Abs. Mag. |
| U | ||
| B | 4.75 | 1.85 |
| V | 3.80 | 0.90 |
| R | ||
| I | 3.05 | 0.15 |
| J | 2.32 | -0.58 |
| H | 1.82 | -1.08 |
| K | 1.76 | -1.15 |
B-V: +0.95 V-I: +0.75
Derivations
Heliocentric distance: 38.07 pc (0.4% margin of error)
Galactocentric distance: 7,397 pc
Transverse velocity: 24.7 km/s
3D heliocentric position and motion:
|
toward: |
Galactic center | Galactic rotation | North Galactic Pole |
| Position ( X, Y, Z) | 3.5 pc | 36.1 pc | 11.7 pc |
| Velocity (U, V, W) | -27.1 km/s | -24.5 km/s | -10.7 km/s |