88 Thisbe

88 Thisbe
Discovery
Discovered byChristian Heinrich Friedrich Peters
Discovery date15 June 1866
Designations
(88) Thisbe
Pronunciation/ˈθɪzbiː/[1]
Named after
Thisbē
Main belt
AdjectivesThisbean /θɪzˈbiːən/, /ˈθɪzbiən/
Orbital characteristics[2]
Epoch 31 December 2006 (JD 2454100.5)
Aphelion482.242 Gm (3.224 AU)
Perihelion345.809 Gm (2.312 AU)
414.025 Gm (2.768 AU)
Eccentricity0.165
1,681.709 d (4.60 yr)
165.454°
Inclination5.219°
276.765°
36.591°
Physical characteristics
Dimensionsc/a = 0.81±0.07[3]
(255×232×193)±12 km[4]
218±3 km[3]
225 km[4]
232 km (Dunham)[2]
Mass(11.6±2.2)×1018 kg[3]
18.3×1018 kg[4]
1.5×1019 kg[5][a]
Mean density
2.14±0.42 g/cm3[3]
3.06±0.52 g/cm3[4]
6.04[6] h
0.057[3]
0.067[7]
B[2]
7.04[2]

88 Thisbe is the 13th largest main-belt asteroid. It was discovered by C. H. F. Peters on 15 June 1866, and named after Thisbe, heroine of a Roman fable. This asteroid is orbiting the Sun at a distance of 2.768 AU with a period of 4.60 years and an orbital eccentricity (ovalness) of 0.165. The orbital plane is inclined at an angle of 5.219° to the ecliptic.

On 7 October 1981, asteroid 88 Thisbe was observed to occult the 9th-magnitude star SAO 187124 from 12 sites. The timing of the different chords across the asteroid provided a diameter estimate of 232±12 km. This is 10% larger than the diameter estimate based on radiometric techniques.[8][9][10] During 2000, 88 Thisbe was observed by radar from the Arecibo Observatory. The return signal matched an effective diameter of 207 ± 22 km. This is consistent with the asteroid dimensions computed through other means.[11]

Photometric observations of this asteroid during 1977 gave a light curve with a period of 6.0422 ± 0.006 hours and a brightness variation of 0.19 in magnitude.[6]

  1. ^ Noah Webster (1884). A Practical Dictionary of the English Language.
  2. ^ a b c d Cite error: The named reference jpldata was invoked but never defined (see the help page).
  3. ^ a b c d e P. Vernazza et al. (2021) VLT/SPHERE imaging survey of the largest main-belt asteroids: Final results and synthesis. Astronomy & Astrophysics 54, A56
  4. ^ a b c d Cite error: The named reference Baer was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference Michalak2001 was invoked but never defined (see the help page).
  6. ^ a b Cite error: The named reference Schober1979 was invoked but never defined (see the help page).
  7. ^ Asteroid Data Sets Archived 2009-12-17 at the Wayback Machine
  8. ^ Cite error: The named reference Millis_et_al_1983 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference Taylor1983 was invoked but never defined (see the help page).
  10. ^ Observed minor planet occultation events, version of 2005 July 26
  11. ^ Cite error: The named reference icarus186_1_126 was invoked but never defined (see the help page).


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