Rana, an orange giant star in Eridanus
Rana is an orange giant star in the constellation Eridanus. At 29 light years away, it is the 291st brightest star in the Earth's sky, where it shines at an apparent visual magnitude of 3.52.
Rana (HIP 17378)
Rana is an orange giant star in the constellation Eridanus. At 29 light years away, it is the 291st brightest star in the Earth's sky, where it shines at an apparent visual magnitude of 3.52. The iron abundance of Rana is +0.12 (131.8% of the Sun). It is moving through the Galaxy at a speed of 32.7 km/s relative to the Sun. Its projected Galactic orbit carries it between 24,100 and 62,500 light years from the center of the Galaxy.
Sky position: RA 3h 43.2m, Dec -9° 46.2'
Common designations: Rana, Delta Eridani, 23 Eridani, HIP 17378, HD 23249, Gliese 150.0
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Brightest stars in Eridanus:
(list all)
| Rank | Mag. | Star |
| 1 | 0.45 | Achernar |
| 2 | 2.78 | Cursa |
| 3 | 2.88 | Acamar |
| 4 | 2.97 | Zaurak |
5
| 3.52
) Rana
| Rank | Mag. | Star |
| 6 | 3.55 | Upsilon-4 Eridani |
| 7 | 3.56 | Phi Eridani |
| 8 | 3.69 | chi Eridani |
| 9 | 3.70 | Tau-4 Eridani |
| 10 | 3.72 | Epsilon Eridani |
| 11 | 3.81 | Theemim |
| 12 | 3.86 | Sceptrum |
| 13 | 3.89 | Azha |
| 14 | 3.93 | Nu Eridani |
| 15 | 3.97 | 43 Eridani |
| 16 | 4.01 | Mu Eridani |
| 17 | 4.04 | Beid |
Hover over other bright stars to identify or click to jump.
Galactic Orbit of Rana
(compared to the Sun)
E
ccentricity: 44.3% vs. 16.0%Angle φ : 0.4°vs. 26.0°
Semi-major axis : 13,287 pc vs. 8,686 pc
Semi-minor axis: 11,915 pc vs. 8,574 pc
Focus-to-center
: 5,882 pcvs. 1,388 pcSemilatus rectum : 10,684 pc vs. 8,464 pc
Perigalacticon: 7,406 pc vs. 7,297 pc
Apogalacticon
: 19,169 pcvs. 10,074 pcSome Tabulated XHIP Data for Rana
(see also: SIMBAD)
Astrometry
2007A&A...474..653V
| Position | Proper Motion | |
| Right Ascension: | 55.81231675° ±0.18 mas | -93.10 ±0.23 mas/yr. |
| Declination: | -9.76519869° ±0.15 mas | 743.38 ±0.19 mas/yr. |
| Galactic Longitude: | 198.08966662° | -694.34 mas/yr. |
| Galactic Latitude: | -45.99649652° | 281.36 mas/yr. |
Parallax: 110.61 ± 0.22 mas
Spectrography
Spectral Type: K1III-IV 2006AJ....132..161G.
Radial Velocity: -6.29 ±0.10 km/s [A rating] 2002ApJS..141..503N, 2005ApJS..159..141V.
Iron Abundance [Fe/H]:
0.12 dex
2011A&A...525A..71W, 2008MNRAS.384..173F, 2008A&A...487..373S, 2008A&A...480...91S, 2007A&A...465..271R, 2006AJ....131.3069L, 2005ApJS..159..141V, 2005AJ....129.1063L, 2004A&A...425..187T, 2004A&A...420..183A, 2004A&A...415.1153S, 2003A&A...410..527B, 2001A&A...373.1019S, 1981ApJ...248..228L.
Photometry
| band | magnitude | Abs. Mag. |
| U | ||
| B | 4.44 | 4.65 |
| V | 3.52 | 3.74 |
| R | ||
| I | 2.69 | 2.91 |
| J | 2.06 | 2.28 |
| H | 1.73 | 1.95 |
| K | 1.62 | 1.84 |
B-V: +0.92 V-I: +0.83
Derivations
Heliocentric distance: 9.04 pc (0.2% margin of error)
Galactocentric distance: 7,406 pc
Transverse velocity: 32.1 km/s
3D heliocentric position and motion:
|
toward: |
Galactic center | Galactic rotation | North Galactic Pole |
| Position ( X, Y, Z) | -6.0 pc | -2.0 pc | -6.5 pc |
| Velocity (U, V, W) | -13.3 km/s | 27.0 km/s | 12.9 km/s |