Back 137 مالبويا Arabic 137 مالبويا (كويكب) ARZ 137 Meliboea AST (137) Мелібея Byelorussian (137) Melibea Catalan (137) Мелибея CE (137) Meliboea German 137 Μελίβοια Greek 137 Melibeo Esperanto (137) Melibea Spanish

137 Meliboea

137 Meliboea
Orbital diagram
Discovery[1]
Discovered byJ. Palisa
Discovery siteAustrian Naval Obs.
Discovery date21 April 1874
Designations
(137) Meliboea
Pronunciation/mɛlɪˈbiːə/[2]
Named after
Meliboea, daughter of Oceanus
A874 HA; 1923 FA;
1958 UE; 1962 GB
main-belt · (outer)
Meliboea[3]
AdjectivesMeliboean /mɛlɪˈbiːən/[4]
Orbital characteristics[5]
Epoch 23 March 2018 (JD 2458200.5)
Uncertainty parameter 0
Observation arc133.02 yr (48,587 d)
Aphelion3.7859 AU
Perihelion2.4619 AU
3.1239 AU
Eccentricity0.2119
5.52 yr (2,017 d)
327.88°
0° 10m 42.6s / day
Inclination13.432°
202.22°
107.17°
Physical characteristics
145.42±3.3 km[5]
145.92±3.58 km[6]
Mass(7.27±3.07)×1018 kg[6]
Mean density
4.46 ± 1.91 g/cm3[6]
25.676 h[7]
0.0503±0.002[5]
0.0492 ± 0.0128[8]
C (Tholen)[8]
8.05[5]
8.10[8]

137 Meliboea is a large, dark main-belt asteroid that was discovered by Austrian astronomer J. Palisa at the Austrian Naval Observatory on 21 April 1874, the second of his many asteroid discoveries. It was later named after Meliboea, the daughter of Oceanus and Tethys in Greek mythology.[9] The largest body in the Meliboea family of asteroids that share similar orbital elements, only 791 Ani approaches its size. It is classified as a C-type asteroid and may be composed of carbonaceous materials. The spectra of the asteroid displays evidence of aqueous alteration.[10]

Photometric observations of this asteroid made at the Torino Observatory in Italy during 1990–1991 were used to determine a synodic rotation period of 15.28 ± 0.02 hours.[11] A 2009 study at the Organ Mesa Observatory in Las Cruces, New Mexico found a period of 25.676 ± 0.001 hours and a brightness variation of 0.16 ± 0.02 in magnitude. They ruled out a period of 15 hours determined in previous studies.[7]

During 2002, 137 Meliboea was observed by radar from the Arecibo Observatory. The return signal matched an effective diameter of 144 ± 16 km. This is consistent with the asteroid dimensions computed through other means.[12]

  1. ^ Cite error: The named reference MPC-object was invoked but never defined (see the help page).
  2. ^ Noah Webster (1884) A Practical Dictionary of the English Language
  3. ^ Cite error: The named reference Ferret was invoked but never defined (see the help page).
  4. ^ "melibœan". Oxford English Dictionary (Online ed.). Oxford University Press. (Subscription or participating institution membership required.)
  5. ^ a b c d Cite error: The named reference jpldata was invoked but never defined (see the help page).
  6. ^ a b c Cite error: The named reference Carry2012 was invoked but never defined (see the help page).
  7. ^ a b Cite error: The named reference Pilcher2009 was invoked but never defined (see the help page).
  8. ^ a b c Cite error: The named reference Pravec2012 was invoked but never defined (see the help page).
  9. ^ Schmadel, L. (2003:25). Dictionary of minor planet names. Germany: Springer.
  10. ^ Cite error: The named reference Fornasier1999 was invoked but never defined (see the help page).
  11. ^ Cite error: The named reference diMartino1994 was invoked but never defined (see the help page).
  12. ^ Cite error: The named reference icarus186_1_126 was invoked but never defined (see the help page).
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