شکسپیر ۲۹۸۵

از ویکی‌پدیا، دانشنامهٔ آزاد
(تغییرمسیر از سیارک ۲۹۸۵)
پرش به ناوبری پرش به جستجو
فارسیEnglish
سیارک ۲۹۸۵
اکتشاف
تاریخ کشف اکتبر ۱۲, ۱۹۸۳
طبقه‌بندی
طبقه‌بندی
سیارات کوچک
Koronis family
مبدا ژوئیه ۱۴, ۲۰۰۴ (JD ۲۴۵۳۲۰۰.۵)
خروج از مرکز ۰.۰۴۵
آنومالی متوسط ۱۹۰.۰۱۲°
زاویه انحراف ۲.۶۵۸°
اوج ۴۴۵.۱۰۰ Gm (۲.۹۷۵ AU)
حضیض ۴۰۶.۹۱۶ Gm (۲.۷۲۰ AU)
تناوب مداری ۱۷۵۵.۲۴۱ d (۴.۸۱ a)
میانگین سرعت مداری ۱۷.۶۵ km/s
مشخصات فیزیکی
ابعاد ? km
جرم ?×۱۰۱۶ kg
متوسط چگالی ۲ ? g/cm³
گرانش سطحی? m/s²
سرعت گریز? km/s
آلبدو۰.۱ ?

سیارک ۲۹۸۵ (به انگلیسی: 2985 Shakespeare، نامگذاری:1983TV1) دو هزار و نهصد و هشتاد و پنجمین سیارک کشف شده‌است[۱] که در ۱۲ اکتبر ۱۹۸۳ کشف شد.[۲]

قدر مطلق سیارک برابر ۱۲٫۱۰ 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 اصلی در ۱۴ مه ۲۰۱۹. دریافت‌شده در ۱۴ مه ۲۰۱۹.

پیوند به بیرون[ویرایش]


2985 Shakespeare
Discovery [1]
Discovered byE. Bowell
Discovery siteAnderson Mesa Stn.
Discovery date12 October 1983
Designations
MPC designation(2985) Shakespeare
Named after
William Shakespeare
(poet & playwright)[2]
1983 TV1 · 1962 JJ
1976 GV · 1978 RY4
1978 TM3 · 1980 BT3
main-belt · Koronis[3]
Orbital characteristics[1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc54.68 yr (19,971 days)
Aphelion2.9783 AU
Perihelion2.7184 AU
2.8483 AU
Eccentricity0.0456
4.81 yr (1,756 days)
87.549°
0° 12m 18s / day
Inclination2.6496°
34.228°
277.66°
Physical characteristics
Dimensions10.31 km (calculated)[3]
10.472±0.101 km[4][5]
6.0567±0.0020 h[6]
6.06±0.02 h[7]
6.080±0.040 h[8]
0.24 (assumed)[3]
0.255±0.034[4][5]
S[3]
11.64±0.25[9] · 11.918±0.003 (R)[6] · 11.930±0.240 (R)[8] · 12.0[4] · 12.1[1][3]

2985 Shakespeare, provisional designation 1983 TV1, is a stony Koronian asteroid from the outer region of the asteroid belt, approximately 10 kilometers in diameter. It was discovered on 12 October 1983, by American astronomer Edward Bowell at Lowell's Anderson Mesa Station near Flagstaff, Arizona, and later named after William Shakespeare.[2][10]

Classification and orbit

The S-type asteroid is a member of the Koronis family, a group consisting of about 200 known bodies. It orbits the Sun in the outer main-belt at a distance of 2.7–3.0 AU once every 4 years and 10 months (1,756 days). Its orbit has an eccentricity of 0.05 and an inclination of 3° with respect to the ecliptic.[1] It was first identified as 1962 JJ at Goethe Link Observatory in 1962. The body's observation arc begins with its identification 1976 GV at Crimea–Nauchnij, 7 years prior to its official discovery observation at Anderson Mesa.[10]

Physical characteristics

Three different rotational lightcurves, obtained from photometric observations taken at the Palomar Transient Factory and a group of seven observatories, respectively, found a concurring rotation period of 6.06–6.08 hours with a brightness variation between 0.37 and 0.53 magnitude (U=2/3/2).[6][7][8]

According to the space-based NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, the body has an albedo of 0.26 and measures 10.5 kilometers in diameter,[4][5] while the Collaborative Asteroid Lightcurve Link assumes a standard albedo for members of the Koronis family of 0.24 and calculates a diameter of 10.3 kilometers with an absolute magnitude of 12.1.[3]

Naming

This minor planet was named after William Shakespeare (1564–1616), the English renaissance dramatist and poet.[2] The approved naming citation was published by the Minor Planet Center on 29 September 1985 (M.P.C. 10044).[11]

References

  1. ^ a b c d "JPL Small-Body Database Browser: 2985 Shakespeare (1983 TV1)" (2017-01-07 last obs.). Jet Propulsion Laboratory. Retrieved 3 July 2017.
  2. ^ a b c Schmadel, Lutz D. (2007). "(2985) Shakespeare". Dictionary of Minor Planet Names – (2985) Shakespeare. Springer Berlin Heidelberg. p. 246. doi:10.1007/978-3-540-29925-7_2986. ISBN 978-3-540-00238-3.
  3. ^ a b c d e f "LCDB Data for (2985) Shakespeare". Asteroid Lightcurve Database (LCDB). Retrieved 6 December 2016.
  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 6 December 2016.
  6. ^ a b c 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. Retrieved 6 December 2016.
  7. ^ a b Slivan, Stephen M.; Binzel, Richard P.; Boroumand, Shaida C.; Pan, Margaret W.; Simpson, Christine M.; Tanabe, James T.; et al. (May 2008). "Rotation rates in the Koronis family, complete to H≈11.2". Icarus. 195 (1): 226–276. Bibcode:2008Icar..195..226S. doi:10.1016/j.icarus.2007.11.019. Retrieved 6 December 2016.
  8. ^ a b c Chang, Chan-Kao; Ip, Wing-Huen; Lin, Hsing-Wen; Cheng, Yu-Chi; Ngeow, Chow-Choong; Yang, Ting-Chang; et al. (August 2015). "Asteroid Spin-rate Study Using the Intermediate Palomar Transient Factory". The Astrophysical Journal Supplement Series. 219 (2): 19. arXiv:1506.08493. Bibcode:2015ApJS..219...27C. doi:10.1088/0067-0049/219/2/27. Retrieved 6 December 2016.
  9. ^ 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 6 December 2016.
  10. ^ a b "2985 Shakespeare (1983 TV1)". Minor Planet Center. Retrieved 6 December 2016.
  11. ^ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 6 December 2016.

External links