304 Olga

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304 Olga
Discovery
Discovered by Johann Palisa
Discovery date14 February 1891
Designations
(304) Olga
Pronunciation /ˈɒlɡə/ , German: [ˈɔlɡaː] [1]
A891 CB; 1952 SJ
Main belt
Orbital characteristics [2]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc 124.78 yr (45577 d)
Aphelion 2.93719  AU (439.397  Gm)
Perihelion 1.86853 AU (279.528 Gm)
2.40286 AU (359.463 Gm)
Eccentricity 0.22237
3.72 yr (1360.5 d)
63.6148°
0° 15m 52.607s / day
Inclination 15.8530°
159.080°
172.423°
Physical characteristics
Dimensions67.86±2.1  km [2]
70.30 ± 2.32 km [3]
Mass (1.15 ± 1.12) × 1018 kg [3]
18.36  h (0.765  d)
0.0488±0.003
C
9.74

    304 Olga is a large Main belt asteroid. It is classified as a C-type asteroid and is probably composed of carbonaceous material.

    It was discovered by Johann Palisa on 14 February 1891 in Vienna.

    304 Olga was identified as one of three asteroids that were likely to be a parent body for chondrites along with 449 Hamburga and 335 Roberta. [4] All three asteroids were known to have low-albedo (not reflect as much light) and be close to "meteorite producing resonances". [4] Chrondrites are the most common type of meteor found on Earth, accounting for over 80% of all meteors. [5] They are named for the tiny spherical silicate particles that are found inside them (those particles are called chondrules). [5]

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    References

    1. (German Names)
    2. 1 2 "304 Olga". JPL Small-Body Database . NASA/Jet Propulsion Laboratory . Retrieved 11 May 2016.
    3. 1 2 Carry, B. (December 2012), "Density of asteroids", Planetary and Space Science, vol. 73, pp. 98–118, arXiv: 1203.4336 , Bibcode:2012P&SS...73...98C, doi:10.1016/j.pss.2012.03.009. See Table 1.
    4. 1 2 Lunar and planetary science: abstracts of papers submitted to the ... Lunar and Planetary Science Conference. Lunar and Planetary Institute. 1996.
    5. 1 2 "ASU - Chondrites". Archived from the original on 22 June 2019. Retrieved 31 August 2015.