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107 Camilla is one of the biggest main belt asteroids. It orbits within the Cybele Group, beyond most of the main belt asteroids. It has a very dark surface and is made of carbonate. It was found by N. R. Pogson on November 17, 1868, and named after Camilla, Queen of the Volsci in Roman mythology.
Study of its light curve shows that Camilla's pole probably points towards ecliptic coordinates (β, λ) = (+51°, 72°) with a 10° uncertainty, which gives it an axial tilt of 29°.
Moon (S/2001 (107) I)
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On March 1, 2001, a moon 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. It has been labelled S/2001 (107) 1 but it does not yet have an official name.
Later sightings in September 2005 with the VLT allowed scientists to work out its orbit. Apart from data in infobox, the inclination was found to be 3 ± 1° with respect to an axis pointing towards (β, λ) = (+55°, 75°). Given the ~10° uncertainty in the actual rotational axis of Camilla, the orbit's inclination probably is less than 10°.
The moon is estimated to be about 11 km in diameter. If it has the same density as Camilla, this would give it a mass of about ~1.5×1015 kg. It has a similar colour to Camilla.
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Quick facts for kids
S/2001 (107) 1
| Discovery |
| Discovered by |
A. Storrs, F. Vilas,
R. Landis, E. Wells,
C. Woods, B. Zellner,
and M. Gaffey |
| Discovery date |
1 March 2001 |
| Designations |
|
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Main belt (Cybele) |
| Orbital characteristics |
|
|
1235 ± 16 km |
| Eccentricity |
0.006 ± 0.002 |
|
|
3.710 ± 0.001 d |
|
|
24.2 m/s |
| Inclination |
< 10° |
| Satellite of |
107 Camilla |
| Physical characteristics |
| Dimensions |
~ 11 ± 2 km |
| Mass |
~1.5×1015 kg |
|
|
~ 6 m/s |
|
|
13.18 |
|
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107 Camilla
| Discovery |
| Discovered by |
Norman Robert Pogson |
| Discovery date |
November 17, 1868 |
| Designations |
|
|
A893 QA; 1938 OG; 1949 HD1 |
|
|
Main belt (Cybele) |
| Orbital characteristics |
| Epoch December 31, 2006 (JD 2454100.5) |
| Aphelion |
560.937 Gm (3.750 AU) |
| Perihelion |
479.343 Gm (3.204 AU) |
|
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520.140 Gm (3.477 AU) |
| Eccentricity |
0.078 |
|
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2368.050 d (6.48 a) |
|
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15.95 km/s |
|
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1.746° |
| Inclination |
10.048° |
|
|
173.132° |
|
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309.877° |
| Physical characteristics |
| Dimensions |
285×205×170 ± 20 km |
| Mass |
1.09±0.04×1019 kg |
|
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~1.9 g/cm³ |
|
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~0.036 m/s² |
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0.10 km/s |
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0.2018 d (4.84393 h) |
| Albedo |
0.0525 |
| Temperature |
~151 K
max: 223 K (-52°C) |
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Spectral type
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C |
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7.08 |
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- Hubble Finds New Asteroid Moon (SpaceDaily.com, 21-03-2001), includes discovery image.
- 107 Camilla and S/2001 (107) 1, orbit data website maintained by F. Marchis. Includes orbit diagrams.
See also
In Spanish: (107) Camilla para niños
