G Scorpii, an orange giant star in Scorpius
G Scorpii is an orange giant star in the constellation Scorpius. At 126 light years away, it is the 212nd brightest star in the Earth's sky, where it shines at an apparent visual magnitude of 3.19.
G Scorpii (HIP 87261)
G Scorpii is an orange giant star in the constellation Scorpius. At 126 light years away, it is the 212nd brightest star in the Earth's sky, where it shines at an apparent visual magnitude of 3.19. G Scorpii is the primary component of a multiple-star system. It is moving through the Galaxy at a speed of 26.6 km/s relative to the Sun. Its projected Galactic orbit carries it between 22,400 and 40,200 light years from the center of the Galaxy. It came closest to the Sun 1.3 million years ago when it had brightened to magnitude 1.05 from a distance of 47 light years.
Sky position: RA 17h 49.9m, Dec -37° 2.4'
Common designations: G Scorpii, HIP 87261, HD 161892, HR 6630
Brightest stars in Scorpius:
(list all)
| Rank | Mag. | Star |
| 5 | 2.29 | Epsilon Scorpii |
| 6 | 2.39 | Kappa Scorpii |
| 7 | 2.56 | Graffias |
| 8 | 2.70 | Lesath |
| 9 | 2.82 | Alniyat |
| 10 | 2.89 | Pi Scorpii |
| 11 | 2.90 | Alniyat |
| 12 | 2.99 | Iota-1 Scorpii |
| 13 | 3.00 | Mu-1 Scorpii |
14
| 3.19
) G Scorpii
| Rank | Mag. | Star |
| 15 | 3.32 | Eta Scorpii |
| 16 | 3.56 | Mu-2 Scorpii |
| 17 | 3.62 | Grafias |
| 18 | 3.87 | Rho Scorpii |
| 19 | 3.93 | Omega-1 Scorpii |
| 20 | 4.00 | Jabbah |
| 21 | 4.18 | H Scorpii |
Hover over other bright stars to identify or click to jump.
Galactic Orbit of G Scorpii
(compared to the Sun)
E
ccentricity: 28.4% vs. 16.0%Angle φ : 45.4°vs. 26.0°
Semi-major axis : 9,602 pc vs. 8,686 pc
Semi-minor axis: 9,207 pc vs. 8,574 pc
Focus-to-center
: 2,726 pcvs. 1,388 pcSemilatus rectum : 8,828 pc vs. 8,464 pc
Perigalacticon: 6,876 pc vs. 7,297 pc
Apogalacticon
: 12,328 pcvs. 10,074 pcSome Tabulated XHIP Data for G Scorpii
(see also: SIMBAD)
Astrometry
2007A&A...474..653V
| Position | Proper Motion | |
| Right Ascension: | 267.46437979° ±0.14 mas | 45.50 ±0.90 mas/yr. |
| Declination: | -37.04337108° ±0.10 mas | 29.60 ±0.90 mas/yr. |
| Galactic Longitude: | 353.50258159° | 48.62 mas/yr. |
| Galactic Latitude: | -4.93978935° | -24.14 mas/yr. |
Parallax: 25.92 ± 0.15 mas
Spectrography
Spectral Type: K2III 2006AJ....132..161G.
Radial Velocity: 24.70 ±0.60 km/s [A rating] 2006AstL...32..759G.
Iron Abundance [Fe/H]:
n/a
Photometry
band
magnitude
Abs. Mag.
U
B
4.38
1.45
V
3.19
0.26
R
I
2.17
-0.76
J
1.33
-1.60
H
0.71
-2.22
K
0.62
-2.31
B-V: +1.19 V-I: +1.02
Derivations
Heliocentric distance: 38.58 pc (0.6% margin of error)
Galactocentric distance: 7,362 pc
Transverse velocity: 9.9 km/s
3D heliocentric position and motion:
|
toward: |
Galactic center | Galactic rotation | North Galactic Pole |
| Position ( X, Y, Z) | 38.2 pc | -4.3 pc | -3.3 pc |
| Velocity (U, V, W) | 25.1 km/s | 6.1 km/s | -6.5 km/s |