Eta Crateris, a white giant star in Crater
Eta Crateris is a white giant star in the constellation Crater. At 251 light years away, it shines at an apparent visual magnitude of 5.17.
Eta Crateris (HIP 58188)
Eta Crateris is a white giant star in the constellation Crater. At 251 light years away, it shines at an apparent visual magnitude of 5.17. It is moving through the Galaxy at a speed of 23.7 km/s relative to the Sun. Its projected Galactic orbit carries it between 21,700 and 24,100 light years from the center of the Galaxy. It came closest to the Sun 2.0 million years ago when it had brightened to magnitude 4.61 from a distance of 195 light years.
Sky position: RA 11h 56.0m, Dec -17° 9'
Common designations: Eta Crateris, 30 Crateris, HIP 58188, HD 103632
Brightest stars in Crater:
(list all)
| Rank | Mag. | Star |
| 1 | 3.56 | Labr |
| 2 | 4.06 | Gamma Crateris |
| 3 | 4.08 | Alkes |
| 4 | 4.46 | Beta Crateris |
| 5 | 4.70 | Theta Crateris |
| 6 | 4.71 | Zeta Crateris |
| 7 | 4.81 | Epsilon Crateris |
| 8 | 5.08 | Lambda Crateris |
9
| 5.17
) Eta Crateris
| Rank | Mag. | Star |
| 10 | 5.48 | Iota Crateris |
| 11 | 5.51 | HD 95808 |
| 12 | 5.65 | HR 4255 |
| 13 | 5.77 | HR 4428 |
| 14 | 5.86 | HR 4289 |
| 15 | 5.88 | HR 4284 |
| 16 | 5.93 | Kappa Crateris |
| 17 | 5.94 | HR 4446 |
Hover over other bright stars to identify or click to jump.
Galactic Orbit of Eta Crateris
(compared to the Sun)
E
ccentricity: 5.3% vs. 16.0%Angle φ : 163.1°vs. 26.0°
Semi-major axis : 7,034 pc vs. 8,686 pc
Semi-minor axis: 7,024 pc vs. 8,574 pc
Focus-to-center
: 370 pcvs. 1,388 pcSemilatus rectum : 7,015 pc vs. 8,464 pc
Perigalacticon: 6,664 pc vs. 7,297 pc
Apogalacticon
: 7,404 pcvs. 10,074 pcSome Tabulated XHIP Data for Eta Crateris
(see also: SIMBAD)
Astrometry
2007A&A...474..653V
| Position | Proper Motion | |
| Right Ascension: | 179.00409833° ±0.18 mas | -49.68 ±0.17 mas/yr. |
| Declination: | -17.15080883° ±0.14 mas | -7.61 ±0.14 mas/yr. |
| Galactic Longitude: | 284.47206217° | -45.22 mas/yr. |
| Galactic Latitude: | 43.72547069° | -21.92 mas/yr. |
Parallax: 12.97 ± 0.23 mas
Spectrography
Spectral Type: A1III 1995ApJS...99..135A.
Radial Velocity: 15.00 ±4.20 km/s [A rating] 2006AstL...32..759G.
Iron Abundance [Fe/H]:
n/a
Photometry
band
magnitude
Abs. Mag.
U
B
5.15
0.71
V
5.17
0.74
R
I
5.17
0.73
J
5.18
0.75
H
5.21
0.78
K
5.18
0.74
B-V: -0.02 V-I: 0.00
Derivations
Heliocentric distance: 77.07 pc (1.8% margin of error)
Galactocentric distance: 7,386 pc
Transverse velocity: 18.4 km/s
3D heliocentric position and motion:
|
toward: |
Galactic center | Galactic rotation | North Galactic Pole |
| Position ( X, Y, Z) | 13.9 pc | -53.9 pc | 53.3 pc |
| Velocity (U, V, W) | -11.9 km/s | -20.0 km/s | 4.6 km/s |