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Wikipedia

205 Martha

January 01, 1970

Martha (minor planet designation: 205 Martha) is a large main belt asteroid. It is a dark, primitive carbonaceous C-type asteroid. This object was discovered by Johann Palisa on 13 October 1879, in Pola and was named after Martha, a woman in the New Testament.

205 Martha
Orbital diagram
Discovery
Discovered byJohann Palisa
Discovery date13 October 1879
Designations
(205) Martha
Pronunciation/ˈmɑːrθə/[1]
Named after
Martha of Bethany
A879 TB
Main belt
Orbital characteristics[2]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc136.51 yr (49860 d)
Aphelion2.8758 AU (430.21 Gm)
Perihelion2.6783 AU (400.67 Gm)
2.7771 AU (415.45 Gm)
Eccentricity0.035571
4.63 yr (1690.3 d)
17.87 km/s
198.37°
0° 12m 46.692s / day
Inclination10.696°
211.792°
177.281°
Physical characteristics
Dimensions80.58±1.4 km
14.911 h (0.6213 d)
0.0553±0.002
C
9.23

Efforts to determine the rotation period for this asteroid have produced wildly different results, in large part because the actual period is close to half of an Earth day. A study performed during 2013 showed that the light curve changed significantly during the observation period, adding to the difficulty. This study gave a synodic rotation period of 14.905 ± 0.001 h.[3]

References edit

  1. ^ Noah Webster (1884) A Practical Dictionary of the English Language
  2. ^ "205 Martha". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 12 May 2016.
  3. ^ Hawkins, Scot; Ditteon, Richard (January 2014), "Asteroid Lightcurve Analysis at the Oakley Observatory - May 2007", Minor Planet Bulletin, 41 (1): 47–49, Bibcode:2014MPBu...41...47P.

External links edit

  • Lightcurve plot of 205 Martha, Palmer Divide Observatory, B. D. Warner (2010)
  • Asteroid Lightcurve Database (LCDB), query form (info 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
  • 205 Martha at AstDyS-2, Asteroids—Dynamic Site
    • Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
  • 205 Martha at the JPL Small-Body Database  
    • Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters


 

This article about a C-type asteroid native to the asteroid belt is a stub. You can help Wikipedia by expanding it.

January 01, 1970
martha, martha, minor, planet, designation, large, main, belt, asteroid, dark, primitive, carbonaceous, type, asteroid, this, object, discovered, johann, palisa, october, 1879, pola, named, after, martha, woman, testament, orbital, diagramdiscoverydiscovered, . Martha minor planet designation 205 Martha is a large main belt asteroid It is a dark primitive carbonaceous C type asteroid This object was discovered by Johann Palisa on 13 October 1879 in Pola and was named after Martha a woman in the New Testament 205 MarthaOrbital diagramDiscoveryDiscovered byJohann PalisaDiscovery date13 October 1879DesignationsMPC designation 205 MarthaPronunciation ˈ m ɑːr 8 e 1 Named afterMartha of BethanyAlternative designationsA879 TBMinor planet categoryMain beltOrbital characteristics 2 Epoch 31 July 2016 JD 2457600 5 Uncertainty parameter 0Observation arc136 51 yr 49860 d Aphelion2 8758 AU 430 21 Gm Perihelion2 6783 AU 400 67 Gm Semi major axis2 7771 AU 415 45 Gm Eccentricity0 035571Orbital period sidereal 4 63 yr 1690 3 d Average orbital speed17 87 km sMean anomaly198 37 Mean motion0 12m 46 692s dayInclination10 696 Longitude of ascending node211 792 Argument of perihelion177 281 Physical characteristicsDimensions80 58 1 4 kmSynodic rotation period14 911 h 0 6213 d Geometric albedo0 0553 0 002Spectral typeCAbsolute magnitude H 9 23 Efforts to determine the rotation period for this asteroid have produced wildly different results in large part because the actual period is close to half of an Earth day A study performed during 2013 showed that the light curve changed significantly during the observation period adding to the difficulty This study gave a synodic rotation period of 14 905 0 001 h 3 References edit Noah Webster 1884 A Practical Dictionary of the English Language 205 Martha JPL Small Body Database NASA Jet Propulsion Laboratory Retrieved 12 May 2016 Hawkins Scot Ditteon Richard January 2014 Asteroid Lightcurve Analysis at the Oakley Observatory May 2007 Minor Planet Bulletin 41 1 47 49 Bibcode 2014MPBu 41 47P External links editLightcurve plot of 205 Martha Palmer Divide Observatory B D Warner 2010 Asteroid Lightcurve Database LCDB query form info Archived 16 December 2017 at the Wayback Machine Dictionary of Minor Planet Names Google books Asteroids and comets rotation curves CdR Observatoire de Geneve Raoul Behrend Discovery Circumstances Numbered Minor Planets 1 5000 Minor Planet Center 205 Martha at AstDyS 2 Asteroids Dynamic Site Ephemeris Observation prediction Orbital info Proper elements Observational info 205 Martha at the JPL Small Body Database nbsp Close approach Discovery Ephemeris Orbit diagram Orbital elements Physical parameters nbsp This article about a C type asteroid native to the asteroid belt is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title 205 Martha amp oldid 1191811619, wikipedia, wiki, book, books, library,

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