3905 Doppler

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3905 Doppler
Discovery  [1]
Discovered by A. Mrkos
Discovery site Kleť Obs.
Discovery date28 August 1984
Designations
(3905) Doppler
Pronunciation /ˈdɒplər/ [2]
Named after
 Christian Doppler
(Austrian physicist) [3]
1984 QO ·1980 RP2
main-belt
Orbital characteristics   [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc 35.81 yr (13,078 days)
Aphelion 3.2190 AU
Perihelion 1.9001 AU
2.5596 AU
Eccentricity 0.2577
4.10 yr (1,496 days)
320.23°
0° 14m 26.52s / day
Inclination 14.192°
343.32°
90.823°
Known satellites 1 [4] [5]
Physical characteristics
Dimensions8.021±0.047 km [6]
50.8±0.1 h [5]
0.228±0.040 [6]
S   [5]
12.6 [1] [5]

    3905 Doppler, provisional designation 1984 QO, is a stony asteroid and binary system from the middle region of the asteroid belt, approximately 8 kilometers in diameter.

    Contents

    The asteroid was discovered on 28 August 1984, by Czech astronomer Antonín Mrkos at Kleť Observatory and named after physicist Christian Doppler. [3] [7]

    Orbit and characterization

    Doppler orbits the Sun in the central main-belt at a distance of 1.9–3.2  AU once every 4 years and 1 month (1,496 days). Its orbit has an eccentricity of 0.26 and an inclination of 14° with respect to the ecliptic. [1] It has been characterized as a common S-type asteroid. [5]

    A minor-planet moon orbiting Doppler every 50.8 hours (or 2 days, 2 hours, and 48 minutes) was found orbiting the asteroid in 2013. This is fairly long orbital period for a moon of an asteroid of this size. [4] The satellite's orbital period is identical to the primary's rotation period (F-type binary). [5]

    According to the survey carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Doppler measures 8.021 kilometers in diameter and its surface has an albedo of 0.228, [6] while the Collaborative Asteroid Lightcurve Link assumes a standard albedo for stony asteroids of 0.20 and calculates a diameter of 8.97 kilometers with an absolute magnitude of 12.6. [5]

    Naming

    This minor planet was named after Christian Doppler (1803–1853), Austrian physicist in Vienna and well known for the Doppler effect, which he first described in 1842, in his book "Ueber das farbige Licht der Doppelsterne". The naming was proposed by Jana Tichá and M. Šolc. [3] The approved naming citation was published by the Minor Planet Center on 28 August 1996 ( M.P.C. 27734). [8]

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    References

    1. 1 2 3 4 "JPL Small-Body Database Browser: 3905 Doppler (1984 QO)" (2016-06-29 last obs.). Jet Propulsion Laboratory . Retrieved 15 June 2017.
    2. ↑ "Doppler". Dictionary.com Unabridged (Online). n.d.
    3. 1 2 3 Schmadel, Lutz D. (2007). "(3905) Doppler". Dictionary of Minor Planet Names – (3905) Doppler. Springer Berlin Heidelberg. p. 332. doi:10.1007/978-3-540-29925-7_3894. ISBN   978-3-540-00238-3.
    4. 1 2 Johnston, Robert (21 September 2014). "(3905) Doppler". johnstonsarchive.net. Retrieved 15 June 2017.
    5. 1 2 3 4 5 6 7 "LCDB Data for (3905) Doppler". Asteroid Lightcurve Database (LCDB). Retrieved 15 June 2017.
    6. 1 2 3 Masiero, Joseph R.; Grav, T.; Mainzer, A. K.; Nugent, C. R.; Bauer, J. M.; Stevenson, R.; et al. (August 2014). "Main-belt Asteroids with WISE/NEOWISE: Near-infrared Albedos". The Astrophysical Journal. 791 (2): 11. arXiv: 1406.6645 . Bibcode:2014ApJ...791..121M. doi:10.1088/0004-637X/791/2/121 . Retrieved 15 June 2017.
    7. ↑ "3905 Doppler (1984 QO)". Minor Planet Center. Retrieved 15 June 2017.
    8. ↑ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 15 June 2017.
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