385 Ilmatar

385 Ilmatar
Orbital diagram
Discovery
Discovered byMax Wolf
Discovery date1 March 1894
Designations
(385) Ilmatar
Named after
Ilmatar
1894 AX
Main belt
Orbital characteristics[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc122.12 yr (44604 d)
Aphelion3.19998 AU (478.710 Gm)
Perihelion2.50226 AU (374.333 Gm)
2.85112 AU (426.521 Gm)
Eccentricity0.12236
4.81 yr (1758.4 d)
166.647°
0° 12m 17.024s / day
Inclination13.5514°
345.021°
187.911°
Physical characteristics
83.857±0.576 km[1]
Mass(1.039 ± 0.515/0.201)×1018 kg[2]
Mean density
3.136 ± 1.555/0.607 g/cm3[2]
62.35 h (2.598 d)
0.242±0.042[1]
S
7.85[1]

385 Ilmatar is a large main belt asteroid.

It was discovered by Max Wolf on March 1, 1894, in Heidelberg.[3] It was named after Ilmatar, virgin spirit of the air from the Finnish epic Kalevala. Its mass has been estimated as (1.039 ± 0.515/0.201)×1018 kg.[2] Its rotation is 62.35 hr.

References

  1. ^ a b c d "385 Ilmatar (1894 AX)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 10 May 2016.
  2. ^ a b c Fienga, A.; Avdellidou, C.; Hanuš, J. (February 2020). "Asteroid masses obtained with INPOP planetary ephemerides". Monthly Notices of the Royal Astronomical Society. 492 (1): 589–602. doi:10.1093/mnras/stz3407.
  3. ^ "Physics and Astronomy > Dictionary of Minor Planet Names > (385) Ilmatar". Springer Reference. Retrieved 20 October 2014.
Stub icon

This article about an asteroid native to the asteroid belt is a stub. You can help Wikipedia by expanding it.