Minorplanet: | yes |
Background: |
|
131 Vala | |
Discovered: | 24 May 1873 |
Mpc Name: | (131) Vala |
Alt Names: | A873 KA; 1945 KA; ; 1953 QE |
Epoch: | 31 July 2016 (JD 2457600.5) |
Semimajor: | 2.43198AU |
Perihelion: | 2.26604AU |
Aphelion: | 2.5979AU |
Eccentricity: | 0.068233 |
Period: | 1385.3days |
Inclination: | 4.9602° |
Asc Node: | 65.682° |
Arg Peri: | 160.641° |
Avg Speed: | 19.08 km/s |
Mass: | 6.9 kg |
Surface Grav: | 0.0113 m/s² |
Escape Velocity: | 0.0214 km/s |
Rotation: | 5.1812abbr=onNaNabbr=on |
Spectral Type: | K (Bus) |
Abs Magnitude: | 10.03 |
Mean Motion: | / day |
Observation Arc: | 142.88 yr (52187 d) |
Uncertainty: | 0 |
Moid: | 1.25637AU |
Jupiter Moid: | 2.37651AU |
Tisserand: | 3.499 |
Named After: | vǫlva |
131 Vala is an inner main-belt asteroid. It was discovered by C. H. F. Peters on 24 May 1873, and derives its name from völva (vǫlva,), a prophetess in Norse paganism. One observation of an occultation of a star by Vala is from Italy (26 May 2002). 10-μm radiometric data collected from Kitt Peak in 1975 gave a diameter estimate of 34 km.
In the Tholen classification system, it is categorized as an SU-type asteroid, while the Bus asteroid taxonomy system lists it as a K-type asteroid. Photometric observations of this asteroid during 2007 at the Organ Mesa Observatory in Las Cruces, New Mexico were used to create a "nearly symmetric bimodal" light curve plot. This showed a rotation period of 10.359 ± 0.001 hours and a brightness variation of 0.09 ± 0.02 magnitude during each cycle. The result is double the 5.18-hour period reported in the JPL Small-Body Database.
On 2028-Apr-05, Vala will pass 0.0276abbr=onNaNabbr=on from asteroid 2 Pallas.