141 Lumen

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141 Lumen
Discovery [1]
Discovered by P. P. Henry
Discovery date 13 January 1875
Designations
none
Main belt
Orbital characteristics[2][3]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc 138.63 yr (50635 d)
Aphelion 3.23723 AU (484.283 Gm)
Perihelion 2.09253 AU (313.038 Gm)
2.66488 AU (398.660 Gm)
Eccentricity 0.21477
4.35 yr (1589.0 d)
18.03 km/s
292.477°
0° 13m 35.623s / day
Inclination 11.8967°
318.504°
58.1076°
Earth MOID 1.11821 AU (167.282 Gm)
Jupiter MOID 2.34133 AU (350.258 Gm)
Jupiter Tisserand parameter 3.320
Physical characteristics
Dimensions 131.03±2.9 km[3]
130 km [4]
131.35 ± 5.21 km [5]
Mass (8.25 ± 5.77) × 1018 kg [5]
Mean density
~1.4 g/cm³ (estimate)[6]
6.95 ± 4.93 g/cm3[5]
Equatorial surface gravity
~0.025 m/s² (estimate)
Equatorial escape velocity
~0.06 km/s (estimate)
19.87 h (0.828 d) [3]
0.820 d (19.67 h) [7]
0.0540±0.002[3]
0.054 [4]
Surface temp. min mean max
Kelvin ~173 275
Celsius +2°
C
8.4

141 Lumen is a dark (C-type), large rocky asteroid 130 km in diameter orbiting in the main belt near the Eunomia family of asteroids.

It was discovered on January 13, 1875, by the brothers Paul Henry and Prosper Henry, but Paul is the one who was given the credit for this discovery. It is named for Lumen: Récits de l'infini, a book by the astronomer Camille Flammarion.[8]

Richard P. Binzel and Schelte J. Bus further added to the knowledge about this asteroid in a light-curve survey published in 2003. This project was known as Small Main-belt Asteroid Spectroscopic Survey, Phase II or SMASSII, which built on a previous survey of the main-belt asteroids. The visible-wavelength (0.435–0.925 micrometre) spectra data was gathered between August 1993 and March 1999.[9]

Lightcurve data has also been recorded by observers at the Antelope Hill Observatory, which has been designated as an official observatory by the Minor Planet Center.[10]

References[edit]

  1. ^ [1]
  2. ^ [2]
  3. ^ a b c d "141 Lumen". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 12 May 2016. 
  4. ^ a b Supplemental IRAS Minor Planet Survey
  5. ^ a b c Carry, B. (December 2012), "Density of asteroids", Planetary and Space Science, 73, pp. 98–118, arXiv:1203.4336free to read, Bibcode:2012P&SS...73...98C, doi:10.1016/j.pss.2012.03.009.  See Table 1.
  6. ^ See Georgij A. Krasinsky et al. Hidden Mass in the Asteroid Belt, Icarus, Vol. 158, p. 98 (2002), for density estimates
  7. ^ PDS lightcurve derived data
  8. ^ Schmadel Lutz D. Dictionary of Minor Planet Names (fifth edition), Springer, 2003. ISBN 3-540-00238-3.
  9. ^ Bus, S., Binzel, R. P. Small Main-belt Asteroid Spectroscopic Survey, Phase II. EAR-A-I0028-4-SBN0001/SMASSII-V1.0. NASA Planetary Data System, 2003.
  10. ^ Lightcurve Results

External links[edit]