705 Erminia

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705 Erminia
Animation of 705 Erminia orbit 2000-2020.gif
Animation of 705 Erminia's orbit 2000-2020
   Sun   Earth ·   Mars ·  Jupiter ·   705 Erminia
Discovery
Discovered by E. Ernst
Discovery site Heidelberg Obs.
Discovery date6 October 1910
Designations
(705) Erminia
Pronunciation /ərˈmɪniə/
1910 KV
Orbital characteristics [1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc 105.53 yr (38544 d)
Aphelion 3.0635189  AU (458.29590  Gm)
Perihelion 2.7809463 AU (416.02365 Gm)
2.92223259 AU (437.159773 Gm)
Eccentricity 0.04834875
5.00 yr (1824.6 d)
348.73426°
0° 11m 50.288s / day
Inclination 25.045517°
2.8949214°
101.35517°
Physical characteristics
Dimensions128 km × 141 km (occultation)
Mean diameter
132.261±1.178  km [1] [2]
70-130 km (assumed albedo=0.05-0.3)
134.22 ±2.3 (IRAS)
133.9-134.5 (albedo estimate)
Mass (4.12 ± 1.775/0.942)×1018 kg [2]
Mean density
3.401 ± 1.465/0.778 g/cm3 [2]
53.96  h (2.248  d)
0.031±0.005 [1]
X (tholen) C (SMASSII)
B-V = 0.667-0.725
U-B = 0.249-0.327
8.51 [1]

    705 Erminia is a minor planet orbiting the Sun. Its name derives from the comic opera Erminie . An occultation on 8 December 2014 gave 3 chords, with one measurement suggesting a small moon 6-10 kilometers wide at a distance of 400 kilometers to the primary. [3]

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    See also

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    References

    1. 1 2 3 4 "705 Erminia (1910 KV)". JPL Small-Body Database . NASA/Jet Propulsion Laboratory . Retrieved 6 May 2016.
    2. 1 2 3 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. "OCCULTATION OF UCAC4 315_245088 BY 705 Erminia 2014 December 08". occultations.org. Retrieved 8 February 2015.