سیارک ۲۰۳۷

از ویکی‌پدیا، دانشنامهٔ آزاد
پرش به ناوبری پرش به جستجو
فارسیEnglish
سیارک ۲۰۳۷
اکتشاف
تاریخ کشف اکتبر ۲۵, ۱۹۷۳
مبدا مه ۱۴, ۲۰۰۸
خروج از مرکز ۰.۱۳۱۴۷۹۳
آنومالی متوسط ۳۵۶.۲۴۲۶۱
زاویه انحراف ۴.۲۵۶۰۳
اوج ۲.۶۰۳۶۸۴۸
حضیض ۱.۹۹۸۵۸۲۰
تناوب مداری ۱۲۷۵.۰۰۲۷۱۴۷

سیارک ۲۰۳۷ (به انگلیسی: 2037 Tripaxeptalis، نامگذاری:1973UB) دو هزار و سی و هفتمین سیارک کشف شده‌است[۱] که در ۲۵ اکتبر ۱۹۷۳ کشف شد.[۲]

قدر مطلق سیارک برابر ۱۳٫۵۰ است.[۳]

منابع[ویرایش]

  1. طبق اینجا شماره سیارک معرف شماره کشف شدن آنهاست.
  2. «فهرست سیارک‌های شماره‌دار». دانشگاه هاروارد. دریافت‌شده در ۲۸ سپتامبر ۲۰۰۹.
  3. «فهرست داده‌های سیارک‌ها». ناسا. بایگانی‌شده از روی نسخه اصلی در ۱۳ مه ۲۰۱۹. دریافت‌شده در ۱۴ مه ۲۰۱۹.

پیوند به بیرون[ویرایش]


2037 Tripaxeptalis
Discovery [1]
Discovered byP. Wild
Discovery siteZimmerwald Obs.
Discovery date25 October 1973
Designations
MPC designation(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 arc43.52 yr (15,894 days)
Aphelion2.6046 AU
Perihelion1.9996 AU
2.3021 AU
Eccentricity0.1314
3.49 yr (1,276 days)
235.93°
0° 16m 55.92s / day
Inclination4.2509°
9.5018°
346.18°
Physical characteristics
Dimensions5.956±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.

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]

References

  1. ^ a b c d "JPL Small-Body Database Browser: 2037 Tripaxeptalis (1973 UB)" (2017-05-01 last obs.). Jet Propulsion Laboratory. Retrieved 28 June 2017.
  2. ^ a b c 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. ^ a b c d e f "LCDB Data for (2037) Tripaxeptalis". Asteroid Lightcurve Database (LCDB). Retrieved 28 June 2017.
  4. ^ a b c d 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. ^ a b c 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. ^ a b 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. ^ a b "2037 Tripaxeptalis (1973 UB)". Minor Planet Center. Retrieved 28 June 2017.
  9. ^ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 28 June 2017.

External links