2037 Tripaxeptalis

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2037 Tripaxeptalis
Discovery  [1]
Discovered by P. Wild
Discovery site Zimmerwald Obs.
Discovery date25 October 1973
Designations
(2037) Tripaxeptalis
Named after
Tripaxeptalis (fantasy name)
(3 ×  679 Pax = 7 ×  291 Alice) [2]
1973 UB ·A917 SN
main-belt  · Flora   [3]
Orbital characteristics   [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc 43.52 yr (15,894 days)
Aphelion 2.6046 AU
Perihelion 1.9996 AU
2.3021 AU
Eccentricity 0.1314
3.49 yr (1,276 days)
235.93°
0° 16m 55.92s / day
Inclination 4.2509°
9.5018°
346.18°
Physical characteristics
Dimensions 5.956±0.213 km [4] [5]
6.21 km (calculated) [3]
2.33±0.01 h [6]
0.198±0.032 [4] [5]
0.24 (assumed) [3]
S   [3]
13.2 [1] [3]  ·13.44±0.12 [7]  ·13.5 [4]

    2037 Tripaxeptalis, provisional designation 1973 UB, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 6 kilometers in diameter.

    Contents

    It was discovered on 25 October 1973, by Swiss astronomer Paul Wild at Zimmerwald Observatory near Bern, Switzerland. [8] The asteroid's constructed name "Tripaxeptalis" derives from a numbers game with the asteroids 679 Pax and 291 Alice. [2]

    Orbit and classification

    Tripaxeptalis is a member of the Flora family, one of the largest collisional populations of stony asteroids. It orbits the Sun in the inner main-belt at a distance of 2.0–2.6  AU once every 3 years and 6 months (1,276 days). Its orbit has an eccentricity of 0.13 and an inclination of 4° with respect to the ecliptic. [1]

    In September 1917, the asteroid was first identified as A917 SN at Simeiz Observatory on the Crimean peninsula. The body's observation arc begins with its official discovery observation at Zimmerwald. [8]

    Physical characteristics

    Rotation period

    In January 2006, a rotational lightcurve of Tripaxeptalis was obtained from photometric observations by astronomer Adrián Galád at Modra Observatory in Slovakia. Lightcurve analysis gave a rotation period of 2.33 hours with a brightness variation of 0.10 magnitude ( U=2 ). The ambiguous lightcurve gave an alternative period solution of 2.23 hours and an amplitude of 0.10. [6]

    Diameter and albedo

    According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Tripaxeptalis measures 5.956 kilometers in diameter and its surface has an albedo of 0.198. [4] [5] The Collaborative Asteroid Lightcurve Link assumes an albedo of 0.24 – derived from 8 Flora, the largest member and namesake of its family – and calculates a diameter of 6.21 kilometers based on an absolute magnitude of 13.2. [3]

    Naming

    This minor planet's constructed name "Tripaxeptalis" (tri–Pax–hepta–Alice) refers to the fact that its number, 2037, matches 3 × 679 Pax as well as 7 × 291 Alice. [2] The approved naming citation was published by the Minor Planet Center on 1 June 1980 ( M.P.C. 5359). [9]

    Related Research Articles

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    17102 Begzhigitova (provisional designation 1999 JB41) is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 3 kilometers in diameter. It was discovered on 10 May 1999, by astronomers of the Lincoln Near-Earth Asteroid Research at the Lincoln Laboratory's Experimental Test Site in Socorro, New Mexico, United States. The asteroid was named after Akmaral Begzhigitova, an ISEF awardee of 2003.

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    1376 Michelle, provisional designation 1935 UH, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 8 kilometers in diameter. It was discovered on 29 October 1935, by French astronomer Guy Reiss at the North African Algiers Observatory in Algeria. It is named for the discoverer's daughter, Michelle Reiss.

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    1696 Nurmela, provisional designation 1939 FF, is a Baptistina asteroid from the inner regions of the asteroid belt, approximately 10 kilometers in diameter. It was discovered on 18 March 1939, by Finnish astronomer Yrjö Väisälä at Turku Observatory in Southwest Finland, and named after Finnish academician Tauno Nurmela. The possibly elongated asteroid has a rotation period of 3.15 hours.

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    3823 Yorii, provisional designation 1988 EC1, is a carbonaceous asteroid from the outer region of the asteroid belt, approximately 11 kilometers in diameter.

    <span class="mw-page-title-main">1446 Sillanpää</span> Stony Florian asteroid

    1446 Sillanpää, provisional designation 1938 BA, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 8.2 kilometers in diameter. It was discovered on 26 January 1938, by Finnish astronomer Yrjö Väisälä at Turku Observatory in Southwest Finland. It was later named after writer Frans Eemil Sillanpää.

    23327 Luchernandez (provisional designation 2001 BE31) is a Florian asteroid from the inner regions of the asteroid belt, approximately 2 kilometers in diameter. It was discovered on 20 January 2001, by astronomers of the LINEAR program at the Lincoln Laboratory's Experimental Test Site near Socorro, New Mexico, United States. The asteroid was named for ISEF awardee Lucero Hernandez.

    3982 Kastelʹ, provisional designation 1984 JP1, is a Florian asteroid and a suspected binary system from the inner regions of the asteroid belt, approximately 6.9 kilometers in diameter.

    References

    1. 1 2 3 4 "JPL Small-Body Database Browser: 2037 Tripaxeptalis (1973 UB)" (2017-05-01 last obs.). Jet Propulsion Laboratory . Retrieved 28 June 2017.
    2. 1 2 3 Schmadel, Lutz D. (2007). "(2037) Tripaxeptalis". Dictionary of Minor Planet Names – (2037) Tripaxeptalis. Springer Berlin Heidelberg. p. 165. doi:10.1007/978-3-540-29925-7_2038. ISBN   978-3-540-00238-3.
    3. 1 2 3 4 5 6 "LCDB Data for (2037) Tripaxeptalis". Asteroid Lightcurve Database (LCDB). Retrieved 28 June 2017.
    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.
    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 . Retrieved 28 June 2017.
    6. 1 2 Galad, Adrian (March 2008). "Several Byproduct Targets of Photometric Observations at Modra". The Minor Planet Bulletin. 35 (1): 17–21. Bibcode:2008MPBu...35...17G. ISSN   1052-8091 . Retrieved 28 June 2017.
    7. ↑ 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: 1506.00762 . Bibcode:2015Icar..261...34V. doi:10.1016/j.icarus.2015.08.007 . Retrieved 28 June 2017.
    8. 1 2 "2037 Tripaxeptalis (1973 UB)". Minor Planet Center. Retrieved 28 June 2017.
    9. ↑ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 28 June 2017.


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