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Stars in Lyra

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.

Ashland Astronomy Studio Star

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 pc

Semilatus rectum : 8,651 pc vs. 8,464 pc

Perigalacticon: 7,218 pc vs. 7,297 pc

Apogalacticon

: 10,795 pcvs. 10,074 pc
  Some 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

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