16 Scorpii, a white subgiant star in Scorpius
16 Scorpii is a white subgiant star in the constellation Scorpius. At 252 light years away, it shines at an apparent visual magnitude of 5.43.
16 Scorpii (HIP 79387)
16 Scorpii is a white subgiant star in the constellation Scorpius. At 252 light years away, it shines at an apparent visual magnitude of 5.43. It is moving through the Galaxy at a speed of 17 km/s relative to the Sun. Its projected Galactic orbit carries it between 23,300 and 41,000 light years from the center of the Galaxy.
Sky position: RA 16h 12.1m, Dec -8° 33'
Common designations: 16 Scorpii, HIP 79387, HD 145607, HR 6033
Brightest stars in Scorpius:
(list all)
| Rank | Mag. | Star |
| 45 | 5.24 | Chi Scorpii |
| 46 | 5.31 | HR 6142 |
| 47 | 5.35 | HR 6001 |
| 48 | 5.37 | Gliese 620.1 A |
| 49 | 5.38 | HR 5906 |
| 50 | 5.40 | HD 147722 |
| 51 | 5.41 | HR 5907 |
| 52 | 5.42 | HR 6100 |
| 53 | 5.43 | HR 5942 |
54
| 5.43
) 16 Scorpii
| Rank | Mag. | Star |
| 55 | 5.46 | HR 6164 |
| 56 | 5.46 | HR 6260 |
| 57 | 5.48 | HR 6221 |
| 58 | 5.48 | 27 Scorpii |
| 59 | 5.49 | 18 Scorpii |
| 60 | 5.50 | HR 6007 |
| 61 | 5.53 | HR 6077 |
Hover over other bright stars to identify or click to jump.
Galactic Orbit of 16 Scorpii
(compared to the Sun)
E
ccentricity: 27.4% vs. 16.0%Angle φ : 26.9°vs. 26.0°
Semi-major axis : 9,868 pc vs. 8,686 pc
Semi-minor axis: 9,490 pc vs. 8,574 pc
Focus-to-center
: 2,706 pcvs. 1,388 pcSemilatus rectum : 9,126 pc vs. 8,464 pc
Perigalacticon: 7,162 pc vs. 7,297 pc
Apogalacticon
: 12,574 pcvs. 10,074 pcSome Tabulated XHIP Data for 16 Scorpii
(see also: SIMBAD)
Astrometry
2007A&A...474..653V
| Position | Proper Motion | |
| Right Ascension: | 243.03037251° ±0.59 mas | 44.41 ±0.51 mas/yr. |
| Declination: | -8.54757962° ±0.34 mas | 0.40 ±0.44 mas/yr. |
| Galactic Longitude: | 3.92412174° | 27.71 mas/yr. |
| Galactic Latitude: | 29.73126586° | -34.70 mas/yr. |
Parallax: 12.92 ± 0.57 mas
Spectrography
Spectral Type: A2 IV 1999MSS...C05....0H.
Radial Velocity: 5.00 ±4.20 km/s [A rating] 2006AstL...32..759G.
Iron Abundance [Fe/H]:
n/a
Photometry
band
magnitude
Abs. Mag.
U
B
5.55
1.11
V
5.43
0.99
R
I
5.32
0.88
J
5.17
0.73
H
5.31
0.87
K
5.05
0.61
B-V: +0.12 V-I: +0.11
Derivations
Heliocentric distance: 77.22 pc (4.4% margin of error)
Galactocentric distance: 7,333 pc
Transverse velocity: 16.3 km/s
3D heliocentric position and motion:
|
toward: |
Galactic center | Galactic rotation | North Galactic Pole |
| Position ( X, Y, Z) | 66.9 pc | 4.6 pc | 38.3 pc |
| Velocity (U, V, W) | 9.9 km/s | 10.8 km/s | -8.6 km/s |