Rijl al Awwa, a white main-sequence star in Virgo
Rijl al Awwa is a white main-sequence star in the constellation Virgo. At 60 light years away, it is the 452nd brightest star in the Earth's sky, where it shines at an apparent visual magnitude of 3.87.
Rijl al Awwa (HIP 71957)
Rijl al Awwa is a white main-sequence star in the constellation Virgo. At 60 light years away, it is the 452nd brightest star in the Earth's sky, where it shines at an apparent visual magnitude of 3.87. The star's age is estimated to be 1.5 billion years but is certainly no less than 1.4 billion years and no greater than 1.6 billion years. The iron abundance of Rijl al Awwa is +0.04 (109.6% of the Sun). It is moving through the Galaxy at a speed of 29.5 km/s relative to the Sun. Its projected Galactic orbit carries it between 20,600 and 28,600 light years from the center of the Galaxy.
Sky position: RA 14h 43.1m, Dec -5° 39.6'
Common designations: Rijl al Awwa, Mu Virginis, 107 Virginis, HIP 71957, HD 129502, HR 5487, Gliese 9491
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Brightest stars in Virgo:
(list all)
| Rank | Mag. | Star |
| 1 | 0.98 | Spica |
| 2 | 2.74 | Porrima |
| 3 | 2.85 | Vindemiatrix |
| 4 | 3.38 | Heze |
| 5 | 3.39 | Auva |
| 6 | 3.59 | Zavijah |
| 7 | 3.73 | 109 Virginis |
8
| 3.87
) Rijl al Awwa
| Rank | Mag. | Star |
| 9 | 3.89 | Zaniah |
| 10 | 4.04 | Nu Virginis |
| 11 | 4.07 | Syrma |
| 12 | 4.12 | Omicron Virginis |
| 13 | 4.18 | Kappa Virginis |
| 14 | 4.23 | Tau Virginis |
| 15 | 4.38 | Theta Virginis |
| 16 | 4.39 | 110 Virginis |
| 17 | 4.52 | Kkhambaliya |
Hover over other bright stars to identify or click to jump.
Galactic Orbit of Rijl al Awwa
(compared to the Sun)
E
ccentricity: 16.3% vs. 16.0%Angle φ : 92.3°vs. 26.0°
Semi-major axis : 7,540 pc vs. 8,686 pc
Semi-minor axis: 7,439 pc vs. 8,574 pc
Focus-to-center
: 1,230 pcvs. 1,388 pcSemilatus rectum : 7,339 pc vs. 8,464 pc
Perigalacticon: 6,309 pc vs. 7,297 pc
Apogalacticon
: 8,770 pcvs. 10,074 pcSome Tabulated XHIP Data for Rijl al Awwa
(see also: SIMBAD)
Astrometry
2007A&A...474..653V
| Position | Proper Motion | |
| Right Ascension: | 220.76484283° ±0.17 mas | 103.28 ±0.24 mas/yr. |
| Declination: | -5.65742908° ±0.15 mas | -318.63 ±0.23 mas/yr. |
| Galactic Longitude: | 346.55136939° | -115.31 mas/yr. |
| Galactic Latitude: | 47.53754315° | -314.48 mas/yr. |
Parallax: 54.73 ± 0.20 mas
Spectrography
Spectral Type: F2V 2006AJ....132..161G.
Radial Velocity: 5.10 ±0.70 km/s [A rating] 2006AstL...32..759G.
Iron Abundance [Fe/H]:
0.04 ±0.08 dex
2011A&A...530A.138C.
Photometry
| band | magnitude | Abs. Mag. |
| U | ||
| B | 4.26 | 2.95 |
| V | 3.87 | 2.56 |
| R | ||
| I | 3.44 | 2.14 |
| J | 3.34 | 2.03 |
| H | 3.07 | 1.76 |
| K | 3.04 | 1.73 |
B-V: +0.39 V-I: +0.43
Derivations
Heliocentric distance: 18.27 pc (0.4% margin of error)
Galactocentric distance: 7,388 pc
Transverse velocity: 29.0 km/s
3D heliocentric position and motion:
|
toward: |
Galactic center | Galactic rotation | North Galactic Pole |
| Position ( X, Y, Z) | 12.0 pc | -2.9 pc | 13.5 pc |
| Velocity (U, V, W) | 20.6 km/s | -15.2 km/s | -14.6 km/s |