Delta Aurigae, an orange giant star in Auriga
Delta Aurigae is an orange giant star in the constellation Auriga. At 140 light years away, it is the 370th brightest star in the Earth's sky, where it shines at an apparent visual magnitude of 3.72.
Delta Aurigae (HIP 28358)
Delta Aurigae is an orange giant star in the constellation Auriga. At 140 light years away, it is the 370th brightest star in the Earth's sky, where it shines at an apparent visual magnitude of 3.72. Delta Aurigae is the primary component of a multiple-star system. The iron abundance of Delta Aurigae is -0.07 (85.1% of the Sun). It is moving through the Galaxy at a speed of 31.8 km/s relative to the Sun. Its projected Galactic orbit carries it between 19,900 and 24,300 light years from the center of the Galaxy.
Sky position: RA 5h 59.5m, Dec +54° 16.8'
Common designations: Delta Aurigae, 33 Aurigae, HIP 28358, HD 40035
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Brightest stars in Auriga:
(list all)
| Rank | Mag. | Star |
| 1 | 0.08 | Capella |
| 2 | 1.90 | Menkalinan |
| 3 | 2.65 | Theta Aurigae |
| 4 | 2.69 | Hassaleh |
| 5 | 3.03 | Al Anz |
| 6 | 3.18 | Hoedus II |
| 7 | 3.69 | Hoedus I |
8
| 3.72
) Delta Aurigae
| Rank | Mag. | Star |
| 9 | 3.97 | Nu Aurigae |
| 10 | 4.30 | Pi Aurigae |
| 11 | 4.32 | Kappa Aurigae |
| 12 | 4.51 | Tau Aurigae |
| 13 | 4.54 | 16 Aurigae |
| 14 | 4.69 | Lambda Aurigae |
| 15 | 4.71 | Chi Aurigae |
| 16 | 4.72 | Upsilon Aurigae |
| 17 | 4.79 | 2 Aurigae |
Hover over other bright stars to identify or click to jump.
Galactic Orbit of Delta Aurigae
(compared to the Sun)
E
ccentricity: 9.9% vs. 16.0%Angle φ : -168.5°vs. 26.0°
Semi-major axis : 6,784 pc vs. 8,686 pc
Semi-minor axis: 6,751 pc vs. 8,574 pc
Focus-to-center
: 671 pcvs. 1,388 pcSemilatus rectum : 6,718 pc vs. 8,464 pc
Perigalacticon: 6,113 pc vs. 7,297 pc
Apogalacticon
: 7,455 pcvs. 10,074 pcSome Tabulated XHIP Data for Delta Aurigae
(see also: SIMBAD)
Astrometry
2007A&A...474..653V
| Position | Proper Motion | |
| Right Ascension: | 89.88145972° ±0.89 mas | 81.20 ±0.60 mas/yr. |
| Declination: | 54.28498197° ±0.60 mas | -126.80 ±0.70 mas/yr. |
| Galactic Longitude: | 158.95134462° | 149.65 mas/yr. |
| Galactic Latitude: | 14.68777784° | 16.64 mas/yr. |
Parallax: 23.22 ± 0.91 mas
Spectrography
Spectral Type: K0IIIb 1989ApJS...71..245K.
Radial Velocity: 8.40 ±0.60 km/s [A rating] 2006AstL...32..759G.
Iron Abundance [Fe/H]:
-0.07 ±0.04 dex
2011A&A...525A..71W, 1990ApJS...74.1075M.
Photometry
| band | magnitude | Abs. Mag. |
| U | ||
| B | 4.73 | 1.57 |
| V | 3.72 | 0.56 |
| R | 3.10 | -0.06 |
| I | 2.60 | -0.56 |
| J | 2.04 | -1.12 |
| H | 1.52 | -1.64 |
| K | 1.38 | -1.78 |
B-V: +1.01 V-I: +1.12
Derivations
Heliocentric distance: 42.99 pc (3.9% margin of error)
Galactocentric distance: 7,439 pc
Transverse velocity: 30.7 km/s
3D heliocentric position and motion:
|
toward: |
Galactic center | Galactic rotation | North Galactic Pole |
| Position ( X, Y, Z) | -38.8 pc | 14.9 pc | 10.9 pc |
| Velocity (U, V, W) | -17.7 km/s | -25.9 km/s | 5.4 km/s |