HD 181068, a type G5 star in Lyra
HD 181068 is a type G5 star in the constellation Lyra. At 801 light years away, it shines at an apparent visual magnitude of 7.1.
HD 181068 (HIP 94780)
HD 181068 is a type G5 star in the constellation Lyra. At 801 light years away, it shines at an apparent visual magnitude of 7.10. The iron abundance of HD 181068 is +0.05 (112.2% of the Sun). It is moving through the Galaxy at a speed of 11.1 km/s relative to the Sun. Its projected Galactic orbit carries it between 23,500 and 35,200 light years from the center of the Galaxy.
Sky position: RA 19h 17.1m, Dec +41° 15.6'
Common designations: HIP 94780, HD 181068
Galactic Orbit of
HD 181068
(compared to the
Sun)
E
ccentricity: 19.9% vs. 16.0%Angle φ : 25.2°vs. 26.0°
Semi-major axis : 9,006 pc vs. 8,686 pc
Semi-minor axis: 8,827 pc vs. 8,574 pc
Focus-to-center
: 1,788 pcvs. 1,388 pcSemilatus rectum : 8,651 pc vs. 8,464 pc
Perigalacticon: 7,218 pc vs. 7,297 pc
Apogalacticon
: 10,795 pcvs. 10,074 pcSome Tabulated XHIP Data for HD 181068
(see also: SIMBAD)
Astrometry
2007A&A...474..653V
| Position | Proper Motion | |
| Right Ascension: | 289.28740902° ±0.35 mas | 0.61 ±0.33 mas/yr. |
| Declination: | 41.26482803° ±0.34 mas | -8.09 ±0.39 mas/yr. |
| Galactic Longitude: | 72.86860530° | -7.09 mas/yr. |
| Galactic Latitude: | 13.05260440° | -3.95 mas/yr. |
Parallax: 4.02 ± 0.40 mas
Spectrography
Spectral Type: G5 1993BICDS..43....5T : S.
Radial Velocity: 5.83 ±999.00 km/s [D rating] 2009A&A...504..829G.
Iron Abundance [Fe/H]:
0.05 ±0.05 dex
2009A&A...504..829G.
Photometry
| band | magnitude | Abs. Mag. |
| U | ||
| B | 8.01 | 1.05 |
| V | 7.10 | 0.15 |
| R | ||
| I | 6.29 | -0.66 |
| J | 5.43 | -1.52 |
| H | 5.05 | -1.90 |
| K | 4.94 | -2.01 |
B-V: +0.91 V-I: +0.81
Derivations
Heliocentric distance: 245.84 pc (10.0% margin of error)
Galactocentric distance: 7,334 pc
Transverse velocity: 9.5 km/s
3D heliocentric position and motion:
|
toward: |
Galactic center | Galactic rotation | North Galactic Pole |
| Position ( X, Y, Z) | 70.5 pc | 228.9 pc | 55.5 pc |
| Velocity (U, V, W) | 9.9 km/s | 4.0 km/s | -3.2 km/s |