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7835 Myroncope

From Wikipedia, the free encyclopedia
Main-belt asteroid

7835 Myroncope
Shape model ofMyroncope from itslightcurve
Discovery[1]
Discovered byT. B. Spahr
Discovery siteCatalina Stn.
Discovery date16 June 1993
Designations
(7835) Myroncope
Named after
Myron Cope
(American sports announcer)[2][3]
1993 MC · 1990 WV12
main-belt[1][4] · (middle)
Mitidika[5]
Orbital characteristics[4]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc26.35 yr (9,623 days)
Aphelion3.1508AU
Perihelion1.9528 AU
2.5518 AU
Eccentricity0.2347
4.08yr (1,489 days)
351.55°
0° 14m 30.48s / day
Inclination12.964°
220.40°
37.179°
Physical characteristics
6.21 km(calculated)[6]
10.752±0.061 km[7][8]
7.43019±0.00001 h[9]
  • (72.0°, −64.0°) (λ11)[9]
  • (288.0°, −55.0°) (λ22)[9]
0.085±0.018[7][8]
0.20(assumed)[6]
S(assumed)[6]
13.3[7] · 13.4[4][6]

7835 Myroncope (prov. designation:1993 MC) is anasteroid of theMitidika family from the central region of theasteroid belt. It was discovered on 16 June 1993, by American astronomerTimothy Spahr at theCatalina Station in Arizona, United States. The assumedS-type asteroid has arotation period of 7.4 hours and measures approximately 10 kilometers (6 miles) in diameter. It was named in memory of American sports announcerMyron Cope (1929–2008).[2][1]

Classification and orbit

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Myroncope has been identified as a member of theMitidika family, a dispersedasteroid family of typically carbonaceousC-type asteroids. The family is named after2262 Mitidika (diameter of 9 km) and consists of 653 known members, the largest ones being404 Arsinoë (95 km) and5079 Brubeck (17 km).[5][10]: 23 

The asteroid orbits the Sun in thecentral main-belt at a distance of 2.0–3.2 AU once every 4 years and 1 month (1,489 days). Its orbit has aneccentricity of 0.23 and aninclination of 13° with respect to theecliptic.[4] The first identification of this asteroid was made at the JapaneseGeisei Observatory in 1990. However the observation was excluded from the asteroid'sorbit determination and did not extend itsobservation arc prior to its discovery.[1]

Naming

[edit]

Thisminor planet was named in memory of famedsports announcer and journalistMyron Cope (1929–2008). He was acolor commentator for thePittsburgh Steelers National Football League team for 35 years and was the creator of theTerrible Towel in 1975.[2][3] Thenaming citation was published by theMinor Planet Center on 20 May 2008 (M.P.C. 62928).[11]

Physical characteristics

[edit]

Diameter and albedo

[edit]

According to the survey carried out by theNEOWISE mission of NASA'sWide-field Infrared Survey Explorer,Myroncope measures 10.8 kilometers in diameter and its surface has analbedo of 0.08.[7][8] TheCollaborative Asteroid Lightcurve Link assumes a standard albedo forstony asteroids of 0.20 and calculates a smaller diameter of 6.2 kilometers based on anabsolute magnitude of 13.4.[6]

Rotation period and poles

[edit]

In 2016, the asteroid's lightcurve has been modeled using data from Lowellphotometric database, which gave a siderealrotation period of 7.43019 hours, as well as twospin axes of (72.0°, −64.0°) and (288.0°, −55.0°) inecliptic coordinates (λ, β) (Q=n.a.).[9]

References

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  1. ^abcd"7835 Myroncope (1993 MC)".Minor Planet Center. Retrieved30 June 2016.
  2. ^abcPete Zapadka (13 June 2008)."Double yoi! Out-of-this-world honor for Myron Cope". Pittsburgh Post-Gazette. Retrieved30 June 2016.
  3. ^abDan Gigler (12 June 2008)."And it will land on Cleveland ..."Pittsburgh Post-Gazette. Retrieved30 June 2016.
  4. ^abcd"JPL Small-Body Database Browser: 7835 Myroncope (1993 MC)" (2017-03-29 last obs.).Jet Propulsion Laboratory. Retrieved4 July 2017.
  5. ^ab"Asteroid 7835 Myroncope – Nesvorny HCM Asteroid Families V3.0".Small Bodies Data Ferret. Retrieved27 October 2019.
  6. ^abcde"LCDB Data for (7835) Myroncope". Asteroid Lightcurve Database (LCDB). Retrieved30 June 2016.
  7. ^abcdMainzer, 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.
  8. ^abcMasiero, 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.
  9. ^abcdDurech, J.; Hanus, J.; Oszkiewicz, D.; Vanco, R. (March 2016). "Asteroid models from the Lowell photometric database".Astronomy and Astrophysics.587: 6.arXiv:1601.02909.Bibcode:2016A&A...587A..48D.doi:10.1051/0004-6361/201527573.
  10. ^Nesvorný, D.; Broz, M.; Carruba, V. (December 2014). "Identification and Dynamical Properties of Asteroid Families".Asteroids IV. pp. 297–321.arXiv:1502.01628.Bibcode:2015aste.book..297N.doi:10.2458/azu_uapress_9780816532131-ch016.ISBN 9780816532131.
  11. ^"MPC/MPO/MPS Archive".Minor Planet Center. Retrieved30 June 2016.

External links

[edit]
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Authority control databasesEdit this at Wikidata
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