10656 Albrecht

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10656 Albrecht
010656-asteroid shape model (10656) Albrecht.png
Shape model of Albrecht from its lightcurve
Discovery [1]
Discovered by C. J. van Houten
I. van Houten-G.
T. Gehrels
Discovery site Palomar Obs.
Discovery date25 March 1971
Designations
(10656) Albrecht
Named after
 Carl Albrecht (astronomer) [2]
2213 T-1 ·1990 SZ25
3011 T-2
main-belt  ·(outer) [3]
background
Orbital characteristics [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc 64.30 yr (23,486 days)
Aphelion 3.4431 AU
Perihelion 2.9060 AU
3.1746 AU
Eccentricity 0.0846
5.66 yr (2,066 days)
312.02°
0° 10m 27.48s / day
Inclination 8.5240°
5.2018°
317.26°
Physical characteristics
7.057±0.365  km [4] [5]
12.83 km (calculated) [3]
14.4899±0.0684  h [6]
0.057 (assumed) [3]
0.323±0.057 [4] [5]
C [3]
12.8 [1]  ·12.6 [4]  ·12.737±0.004(R) [6]  ·13.19 [3]

    10656 Albrecht (prov. designation: 2213 T-1) is a carbonaceous background asteroid from the outer region of the asteroid belt, approximately 10 kilometers (6.2 miles) in diameter. It was named after German astronomer Carl Theodor Albrecht. [2]

    Contents

    Discovery

    Albrecht was discovered on 25 March 1971, by Dutch astronomer couple Ingrid and Cornelis van Houten, on photographic plates taken by Dutch–American astronomer Tom Gehrels at the U.S. Palomar Observatory, California. [7] The first precovery was taken at Palomar Observatory in 1953, extending the asteroid's observation arc by 18 years prior to its discovery. [7]

    The special designation T-1 stands for the first Palomar–Leiden Trojan survey, named after the fruitful collaboration of the Palomar and Leiden Observatory in the 1960s and 1970s. Gehrels used Palomar's Samuel Oschin telescope (also known as the 48-inch Schmidt Telescope), and shipped the photographic plates to Cornelis and Ingrid van Houten-Groeneveld at Leiden Observatory where astrometry was carried out. The trio of astronomers are credited with the discovery of 4,620 minor planets. [8]

    Classification and orbit

    The dark C-type asteroid orbits the Sun in the outer main-belt at a distance of 2.9–3.4  AU once every 5 years and 8 months (2,066 days). Its orbit has an eccentricity of 0.08 and an inclination of 9° with respect to the ecliptic.of 2.9–3.4  AU once every 5 years and 8 months (2,070 days). Its orbit is tilted by 9° to the plane of the ecliptic and shows an eccentricity of 0.09. [1]

    Naming

    This minor planet was named in honor of German astronomer Carl Theodor Albrecht (1843–1915), who was instrumental in establishing the International Latitude Service (ILS) in 1899. The ILS was located at the Prussian Geodetic Institute in Berlin. Albrecht was also the first director of the ILS. [2] The approved naming citation was published by the Minor Planet Center on 20 November 2002 ( M.P.C. 47167). [9]

    Physical characteristics

    Rotation period

    A rotational lightcurve of this asteroid was obtained from photometric observations made at the U.S. Palomar Transient Factory in October 2013. The lightcurve gave a rotation period of 14.4899±0.0684 hours with a brightness amplitude of 0.35 in magnitude ( U=2 ). [6]

    Diameter and albedo

    According to the survey carried out by the NEOWISE mission of NASA's space-based Wide-field Infrared Survey Explorer, the asteroid measures 7.1 kilometers in diameter and its surface has a high albedo of 0.32, [4] [5] while the Collaborative Asteroid Lightcurve Link assumes a standard albedo for carbonaceous asteroids of 0.057 and calculates a larger diameter of 12.8 kilometers with an absolute magnitude of 13.19. [3]

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    References

    1. 1 2 3 4 "JPL Small-Body Database Browser: 10656 Albrecht (2213 T-1)" (2017-06-05 last obs.). Jet Propulsion Laboratory . Retrieved 5 July 2017.
    2. 1 2 3 Schmadel, Lutz D. (2007). "(10656) Albrecht". Dictionary of Minor Planet Names. Springer Berlin Heidelberg. p. 741. doi:10.1007/978-3-540-29925-7_8065. ISBN   978-3-540-00238-3.
    3. 1 2 3 4 5 6 "LCDB Data for (10656) Albrecht". Asteroid Lightcurve Database (LCDB). Retrieved 7 May 2016.
    4. 1 2 3 4 Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; Bauer, J.; Tholen, D.; et al. (November 2011). "NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results". The Astrophysical Journal. 741 (2): 25. arXiv: 1109.6407 . Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90. S2CID   35447010.
    5. 1 2 3 Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Dailey, J.; et al. (November 2011). "Main Belt Asteroids with WISE/NEOWISE. I. Preliminary Albedos and Diameters". The Astrophysical Journal. 741 (2): 20. arXiv: 1109.4096 . Bibcode:2011ApJ...741...68M. doi:10.1088/0004-637X/741/2/68. S2CID   118745497.
    6. 1 2 3 Waszczak, Adam; Chang, Chan-Kao; Ofek, Eran O.; Laher, Russ; Masci, Frank; Levitan, David; et al. (September 2015). "Asteroid Light Curves from the Palomar Transient Factory Survey: Rotation Periods and Phase Functions from Sparse Photometry". The Astronomical Journal. 150 (3): 35. arXiv: 1504.04041 . Bibcode:2015AJ....150...75W. doi:10.1088/0004-6256/150/3/75. S2CID   8342929.
    7. 1 2 "10656 Albrecht (2213 T-1)". Minor Planet Center. Retrieved 7 May 2016.
    8. ↑ "Minor Planet Discoverers". Minor Planet Center. 28 December 2015. Retrieved 1 January 2016.
    9. ↑ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 7 May 2016.
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