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4942 Munroe

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4942 Munroe, provisional designation 1987 DU6, is an asteroid from the inner regions of the asteroid belt, approximately 3 kilometers in diameter. It was discovered on 24 February 1987, by Belgian astronomer Henri Debehogne at ESO's La Silla Observatory in northern Chile, and later named after American cartoonist and former NASA roboticist Randall Munroe.[2]

Orbit and classification

Munroe orbits the Sun in the inner main-belt at a distance of 1.9–2.5 AU once every 3 years and 3 months (1,194 days). Its orbit has an eccentricity of 0.14 and an inclination of 4° with respect to the ecliptic.[1] It was first identified as 1955 MS at the Leiden Southern Station (Johannesburg-Hartbeespoort) in 1955, extending the body's observation arc by 32 years prior to its official discovery observation.[2]

Physical characteristics

In the SMASS taxonomy, Munroe is characterized as an X-type asteroid. It has an absolute magnitude of 13.5.[1]

Diameter and albedo

According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Munroe measures 3.453 kilometers in diameter and its surface has an exceptionally high albedo of 0.936.[3] On his private blog, Randall Munroe (after whom the asteroid is named) calculates that the asteroid is between 6 and 10 kilometers in diameter, comparable in size to the Chicxulub asteroid.[4]

Lightcurves

As of 2017, Munroe's rotation period, poles and shape remain unknown.[1][5]

Naming

En 2013, se le dio el nombre de Randall Munroe (nacido en 1984), un ex robotista de la NASA y autor del webcómic xkcd . [ 6 ] El nombre fue elegido por los lectores de xkcd Lewis Hulbert y Jordan Zhu. [ 7 ] La cita oficial de denominación se publicó el 22 de julio de 2013 ( MPC 84378 ). [ 8 ]

Referencias

  1. 1 2 3 4 5 6 7 "Navegador de la base de datos de cuerpos pequeños del JPL: 4942 Munroe (1987 DU6)" (última observación: 28 de marzo de 2017). Laboratorio de Propulsión a Chorro . Consultado el 4 de julio de 2017 .
  2. 1 2 3 "4942 Munroe (1987 DU6)" . Centro de Planetas Menores . Consultado el 18 de abril de 2017 .
  3. 1 2 3 Masiero, Joseph R.; Mainzer, AK; Grav, T.; Bauer, JM; Cutri, RM; Dailey, J.; et al. (noviembre de 2011). "Asteroides del cinturón principal con WISE/NEOWISE. I. Albedos y diámetros preliminares" . The Astrophysical Journal . 741 (2): 20. arXiv : 1109.4096 . Bibcode : 2011ApJ...741...68M . doi : 10.1088/0004-637X/741/2/68 . S2CID 118745497. Recuperado el 18 de abril de 2017 .  
  4. ↑ Munroe, Randall (30 de septiembre de 2013). "Asteroide 4942 Munroe" . xkcd . Consultado el 7 de julio de 2014 .
  5. ↑ "MinorPlanet.info: Información sobre un asteroide" . Base de datos de curvas de luz de asteroides (LCDB) . Consultado el 18 de abril de 2017 .Buscar usando el número = "4942"
  6. ↑ Richardson, Chris (2 de octubre de 2013). "Autor de xkcd consigue que un asteroide lleve su nombre" . iEntry Network. Archivado del original el 4 de febrero de 2015. Recuperado el 8 de mayo de 2014 .
  7. ↑ Lecher, Colin (2 de octubre de 2013). "Aw, le pusieron el nombre del creador de XKCD a un asteroide" . nextmedia Pty Ltd. Archivado del original el 12 de mayo de 2014. Recuperado el 8 de mayo de 2014 .
  8. ↑ "Archivo MPC/MPO/MPS" . Centro de Planetas Menores . Consultado el 18 de abril de 2017 .
  • Asteroid Lightcurve Database (LCDB), query form (infoArchived 16 December 2017 at the Wayback Machine)
  • Dictionary of Minor Planet Names, Google books
  • Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
  • Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
  • 4942 Munroe at AstDyS-2, Asteroids—Dynamic Site
    • Ephemeris ·Observation prediction ·Orbital info ·Proper elements ·Observational info
  • 4942 Munroe at the JPL Small-Body Database