From Infogalactic: the planetary knowledge core
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107 Camilla is one of the largest main-belt asteroids. It orbits within the Cybele Group, beyond most main-belt asteroids. It has a very dark surface and primitive carbonaceous composition. It was discovered by N. R. Pogson on November 17, 1868, and named after Camilla, Queen of the Volsci in Roman mythology.[1]
10µ radiometric data collected from Kitt Peak in 1975 gave a diameter estimate of 209 km.[2] Lightcurve analysis indicates that Camilla's pole most likely points towards ecliptic coordinates (β, λ) = (+51°, 72°) with a 10° uncertainty,[3] which gives it an axial tilt of 29°.
Satellite (S/2001 (107) I)
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On 1 March 2001, a satellite of Camilla was found by A. Storrs, F. Vilas, R. Landis, E. Wells, C. Woods, B. Zellner, and M. Gaffey using the Hubble Space Telescope.[4] It has been designated S/2001 (107) 1 but has not yet received an official name.
Later observations in September 2005 with the VLT allowed the determination of an orbit.[5] Apart from data in infobox, the inclination was found to be 3 ± 1° with respect to an axis pointing towards (β, λ) = (+55°, 75°).[5] Given the ~10° uncertainty in the actual rotational axis of Camilla, one can say that the orbit's inclination is less than 10°.
The satellite is estimated to measure about 11 km in diameter.[6] Assuming a similar density to the primary, this would give it an approximate mass of ~1.5×1015 kg. It has a similar colour to the primary.[4]
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References
- ↑ Lutz D. Schmadel, Dictionary of Minor Planets Names, p.25.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 3.0 3.1 3.2 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 4.0 4.1 4.2 IAUC 7599
- ↑ 5.0 5.1 5.2 5.3 5.4 107 Camilla and S/2001 (107) 1, F. Marchis
- ↑ 6.0 6.1 6.2 6.3 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Assuming a similar density to the primary.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 9.0 9.1 9.2 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 10.0 10.1 10.2 Supplemental IRAS Minor Planet Survey
- ↑ Axis ratios (rounded to nearest 5 km) based on lightcurve analysis of Torppa et al. (2003), however taking IRAS mean diameter is inconsistent with the maximum value of the short axis obtained in Marchis et al. (2006). Hence, presumably IRAS measurements were taken of a large face. Therefore, anchoring absolute size by requiring the shortest axis to be no larger than the maximum allowed by Marchis et al. (2006).
- ↑ Error estimate derived from consideration of
and given errors in a and P. See propagation of uncertainty.
- ↑ PDS spectral class data
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
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