5010 Amenemhêt

5010 Amenemhět
Discovery [1]
Discovered by C. van Houten
I. van Houten
T. Gehrels
Discovery site Palomar Obs.
Discovery date 24 September 1960
Designations
MPC designation 5010 Amenemhět
Named after
 Amenemhět III
(Pharaoh, 12th Dyn.)[2]
4594 P-L · 1981 EU32
1990 FA1
main-belt · (outer) [3]
Orbital characteristics [1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc 60.73 yr (22,182 days)
Aphelion 3.2687 AU
Perihelion 2.1600 AU
2.7143 AU
Eccentricity 0.2042
4.47 yr (1,633 days)
307.1162°
0° 13m 13.44s / day
Inclination 14.6621°
173.3679°
43.2446°
Physical characteristics
Dimensions 9.40 km (calculated)[3]
3.390±0.002 h[4]
3.2 h[5]
0.20 (assumed)[3]
SMASS = S [1] · S [3][6]
12.5[1][3]
12.67±0.42[6]

    5010 Amenemhět, provisional designation 4594 P-L, is a stony asteroid from the outer region of the asteroid belt, approximately 9 kilometers in diameter. It was discovered on 24 September 1960, by Dutch astronomer couple Ingrid and Cornelis van Houten at Leiden, on photographic plates taken by Dutch–American astronomer Tom Gehrels at the U.S Palomar Observatory, California.[7]

    The asteroid orbits the Sun at a distance of 2.2–3.3 AU once every 4 years and 6 months (1,633 days). Its orbit has an eccentricity of 0.20 and an inclination of 15° with respect to the ecliptic.[1] Its observation arc already begins in 1955, due to precoveries taken at the U.S. Goethe Link Observatory in Indiana.[7]

    A rotational light-curve was obtained through photometric observations at the Serbian Belgrade Astronomical Observatory in May 2008. The light-curve showed a period of 3.390±0.002 hours with a brightness amplitude of 0.18 in magnitude (U=3-), superseding a previous light-curve from two South-American observatories (U=1).[5] The body has a S-type spectrum as classified in the SMASS taxonomic scheme and also determined by a large-scale survey performed by Pan-STARRS.[6] The Collaborative Asteroid Lightcurve Link assumes a standard albedo for stony asteroids of 0.20 and calculates a diameter of 9.4 kilometers, based on an absolute magnitude of 12.5.[3]

    The survey designation "P-L" stands for Palomar–Leiden, named after Palomar Observatory and Leiden Observatory, which collaborated on the fruitful Palomar–Leiden survey in the 1960s. Gehrels used Palomar's Samuel Oschin telescope (also known as the 48-inch Schmidt Telescope), and shipped the photographic plates to Ingrid and Cornelis van Houten at Leiden where astrometry was carried out. The trio are credited with the discovery of 4,620 minor planets.[8]

    The minor planet is named after the Egyptian pharaoh Amenemhět III (1844–1797 B.C.), who built the Great Canal (Mer-Wer) and brought prosperity to the Faiyum Oasis by linking it with the Nile. The area then became a breadbasket for the country. At the Hawara site in Faiyum, he built a mortuary temple, which the Greek historian Herodotus referred to as "labyrinth". Amenemhět's father was the pharaoh Sesostris III (also see the minor planets 4414 Sesostris and 3092 Herodotus).[2] Naming citation was published on 1 September 1993 (M.P.C. 22505).[9]

    References

    1. 1 2 3 4 5 "JPL Small-Body Database Browser: 5010 Amenemhet (4594 P-L)" (2016-04-19 last obs.). Jet Propulsion Laboratory. Retrieved 17 May 2016.
    2. 1 2 Schmadel, Lutz D. (2007). Dictionary of Minor Planet Names – (5010) Amenemhět. Springer Berlin Heidelberg. p. 431. ISBN 978-3-540-00238-3. Retrieved 16 April 2016.
    3. 1 2 3 4 5 6 "LCDB Data for (5010) Amenemhet". Asteroid Lightcurve Database (LCDB). Retrieved 16 April 2016.
    4. ↑ Benishek, Vladimir; Protitch-Benishek, Vojislava (April 2009). "CCD Photometry of Asteroids at the Belgrade Astronomical Observatory: 2008 January-September". The Minor Planet Bulletin. 36 (2): 35–37. Bibcode:2009MPBu...36...35B. ISSN 1052-8091. Retrieved 16 April 2016.
    5. 1 2 Angeli, C. A.; Guimarã; es, T. A.; Lazzaro, D.; Duffard, R.; Fernández, S.; et al. (April 2001). "Rotation Periods for Small Main-Belt Asteroids From CCD Photometry". The Astronomical Journal. 121 (4): 2245–2252. Bibcode:2001AJ....121.2245A. doi:10.1086/319936. Retrieved 16 April 2016.
    6. 1 2 3 Veres, Peter; Jedicke, Robert; Fitzsimmons, Alan; Denneau, Larry; Granvik, Mikael; Bolin, Bryce; et al. (November 2015). "Absolute magnitudes and slope parameters for 250,000 asteroids observed by Pan-STARRS PS1 - Preliminary results". Icarus. 261: 34–47. arXiv:1506.00762Freely accessible. Bibcode:2015Icar..261...34V. doi:10.1016/j.icarus.2015.08.007. Retrieved 16 April 2016.
    7. 1 2 "5010 Amenemhet (4594 P-L)". Minor Planet Center. Retrieved 16 April 2016.
    8. ↑ "Minor Planet Discoverers". Minor Planet Center. 24 April 2016. Retrieved 17 May 2016.
    9. ↑ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 17 May 2016.

    External links

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