131 Vala

131 Vala
Discovered byChristian Heinrich Friedrich Peters
Discovery date24 May 1873
(131) Vala
A873 KA; 1945 KA;
1952 DS3; 1953 QE
Main belt
Orbital characteristics
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc142.88 yr (52187 d)
Aphelion2.60 AU (388.64 Gm)
Perihelion2.27 AU (338.99 Gm)
2.43 AU (363.82 Gm)
3.79 yr (1,385.3 d)
19.08 km/s
0° 15m 35.532s / day
Earth MOID1.26 AU (187.95 Gm)
Jupiter MOID2.38 AU (355.52 Gm)
Physical characteristics
Dimensions40.44±1.8 km
Mass6.9×1016 kg
Equatorial surface gravity
0.0113 m/s²
Equatorial escape velocity
0.0214 km/s
5.1812 h (0.21588 d)
Temperature~178 K
K (Bus)

Vala (minor planet designation: 131 Vala) is an inner main-belt asteroid. It was discovered by C. H. F. Peters on 24 May 1873, and named after Völva, a prophetess in Norse mythology. 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 0.0276 AU (4,130,000 km; 2,570,000 mi) from asteroid 2 Pallas.

This page was last updated at 2022-10-02 05:39 UTC. Update now. View original page.

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