- 41 Daphne
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41 Daphne DiscoveryDiscovered by H. Goldschmidt Discovery date May 22, 1856 DesignationsNamed after Daphne Alternate name(s) Minor planet
categoryMain belt Epoch December 31, 2006 (JD 2454100.5) Aphelion 526.144 Gm (3.517 AU) Perihelion 301.220 Gm (2.014 AU) Semi-major axis 413.682 Gm (2.765 AU) Eccentricity 0.272 Orbital period 1679.618 d (4.60 a) Average orbital speed 17.58 km/s Mean anomaly 247.500° Inclination 15.765° Longitude of ascending node 178.159° Argument of perihelion 46.239° Physical characteristicsDimensions 174.0 km Mass 5.5×1018 kg Mean density ? g/cm³ Equatorial surface gravity 0.0486 m/s² Escape velocity 0.0920 km/s Rotation period ? d Albedo 0.083 [1] Temperature ~167 K Spectral type C Absolute magnitude (H) 7.12 41 Daphne ( /ˈdæfniː/) is a large main-belt asteroid. This dark-surfaced body is probably composed of primitive carbonaceous chondrites. It was discovered by H. Goldschmidt on May 22, 1856, and named after Daphne, the nymph in Greek mythology who was turned into a laurel tree. Daphne has been observed to occult stars three times (all in the 1990s). Daphnean lightcurves suggest that the asteroid is irregular in shape.
Satellite
41 Daphne has at least one satellite, temporarily named S/2008 (41) 1.[2] It was identified on March 28, 2008, and has a projected separation of 443 km., an orbital period of approximately 1.6 days, and an estimated diameter of less than 2 km. If these preliminary observations hold up, this binary system has the most extreme size ratio known.[3]
References
Minor planets navigator Small Solar System bodies Minor planets - Designation
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Comets Meteoroids Lists / categories - Asteroid groups and families
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Categories:- Main Belt asteroids
- Asteroids named from Greek mythology
- C-type asteroids
- Binary asteroids
- Astronomical objects discovered in 1856
- C-type Main Belt asteroid stubs
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