7959 Alysecherri

7959 Alysecherri, provisional designation 1994 PK, is a bright, stony Hungaria asteroid from the inner regions of the asteroid belt, approximately 3 kilometers in diameter. It was discovered on 2 August 1994, by American astronomer Carl Hergenrother at Steward Observatory's Catalina Station on Mt Bigelow near Tucson, Arizona.[6] The asteroid was named for the discoverer's wife, Alyse Cherri.[2]

7959 Alysecherri
Discovery [1]
Discovered byC. W. Hergenrother
Discovery siteCatalina Stn.
Discovery date2 August 1994
Designations
(7959) Alysecherri
Named after
Alyse Cherri Smith
(wife of discoverer)[2]
1994 PK
main-belt · Hungaria [3]
Orbital characteristics [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc65.30 yr (23,850 days)
Aphelion2.1094 AU
Perihelion1.7760 AU
1.9427 AU
Eccentricity0.0858
2.71 yr (989 days)
169.49°
0° 21m 50.4s / day
Inclination19.263°
235.79°
100.40°
Physical characteristics
Dimensions3.05 km (calculated)[3]
3.161±0.005 h[4]
0.30 (assumed)[3]
E [3]
14.5[1][3] · 15.09±0.63[5]

    Orbit and classification

    The E-type asteroid is a member of the Hungaria family, which form the innermost dense concentration of asteroids in the Solar System. It orbits the Sun in the inner main-belt at a distance of 1.8–2.1 AU once every 2 years and 9 months (989 days). Its orbit has an eccentricity of 0.09 and an inclination of 19° with respect to the ecliptic.[1] The first precovery was taken at Palomar Observatory in 1951, extending the asteroid's observation arc by 43 years prior to its discovery.[6]

    Physical characteristics

    A rotational lightcurve for this asteroid was obtained from photometric observations made by American astronomer Brian Warner at the U.S. Palmer Divide Observatory, Colorado, in July 2013. It gave a rotation period of 3.161±0.005 hours with a brightness amplitude of 0.13 in magnitude (U=2).[4] The Collaborative Asteroid Lightcurve Link assumes an albedo of 0.30 and calculates a diameter of 3.05 kilometers with an absolute magnitude of 14.5.[3]

    Naming

    This minor planet is named after the maiden name of the discovering astronomer's wife, Alyse Cherri Smith.[2] The official naming citation was published by the Minor Planet Center on 13 November 2008 (M.P.C. 64311).[7]

    gollark: My automated rap generatorIs far superior to puny human rappers laterIt is backed by the entire resourcesOf this random online dictionary and word relation query API resource isTechnically it still relies on human interventionTo produce the input text to turn into rap intentionAnd due to the limitations of current natural language processingIt is unable to significantly transform the input text reprocessingThis is because spoken human languagesAre mostly not designed with machine-parseability language isor ease of understandingas major goals expandingand were we using better-designed languages, automated rapwould surely be much easier. app
    gollark: Does that even rhyme?Um... BLIME!
    gollark: This is totally a rapA rap is what it is chap
    gollark: I made an automatic rap generation programIt works by appending an unrelated word which rhymes with the end of the previous line amTo every second lineThis totally counts as rap mineVery valid rap indeedI win esolangs now speed
    gollark: Nobody can diss my rhymesBecause they are made from fresh limesThis is the next lineApparently that rhymes with pine

    References
    1. "JPL Small-Body Database Browser: 7959 Alysecherri (1994 PK)" (2017-03-19 last obs.). Jet Propulsion Laboratory. Retrieved 22 June 2017.
    2. Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (7959) Alysecherri. Springer Berlin Heidelberg. p. 610. ISBN 978-3-540-29925-7. Retrieved 14 May 2016.
    3. "LCDB Data for (7959) Alysecherri". Asteroid Lightcurve Database (LCDB). Retrieved 14 May 2016.
    4. Warner, Brian D. (January 2014). "Asteroid Lightcurve Analysis at CS3-Palmer Divide Station: 2013 June- September". The Minor Planet Bulletin. 41 (1): 27–32. Bibcode:2014MPBu...41...27W. ISSN 1052-8091. Retrieved 17 December 2015.
    5. 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 14 May 2016.
    6. "7959 Alysecherri (1994 PK)". Minor Planet Center. Retrieved 14 May 2016.
    7. "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 14 May 2016.

    This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.