41 Daphne
Template:Short description Script error: No such module "Distinguish". Template:Use dmy dates Script error: No such module "infobox".Script error: No such module "Check for unknown parameters".
41 Daphne is a large asteroid from the asteroid belt.[1] It is a dark-surfaced body 174 km in diameter is probably composed of primitive carbonaceous chondrites. The spectra of the asteroid displays evidence of aqueous alteration.[2] 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. Incorrect orbital calculations initially resulted in 56 Melete being mistaken for a second sighting of Daphne. Daphne was not sighted again until August 31, 1862.[3]
The orbit of 41 Daphne places it in a 9:22 mean motion resonance with the planet Mars. The computed Lyapunov time for this asteroid is 14,000 years, indicating that it occupies a chaotic orbit that will change randomly over time because of gravitational perturbations of the planets.[4]
In 1999, Daphne occulted three stars, and on July 2, 1999, produced eleven chords indicating an ellipsoid of 213×160 km.[5] Daphnean lightcurves also suggest that the asteroid is irregular in shape. Daphne was observed by Arecibo radar in April 2008.[6][7] Based upon radar data, the near surface solid density of the asteroid is 2.4Script error: No such module "Su". g cm−3.[8]
Satellite
Script error: No such module "infobox".Script error: No such module "Check for unknown parameters". 41 Daphne has at least one satellite, named Peneius (provisionally S/2008 (41) 1).[9][10] It was identified on March 28, 2008, and has a projected separation of 443 km, an orbital period of approximately 1.1 days,[11] 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.[12] In Greek myth, Pēneios is the god of the river of that name, and father of Daphne.
Notes
<templatestyles src="Reflist/styles.css" />
<ref> tag with name "mass" defined in <references> is not used in prior text.Script error: No such module "Check for unknown parameters".
References
- ↑ Script error: No such module "citation/CS1".
- ↑ Script error: No such module "citation/CS1".
- ↑ Script error: No such module "citation/CS1".
- ↑ Script error: No such module "citation/CS1".
- ↑ Script error: No such module "citation/CS1". (1999-Jul-02 Chords)
- ↑ Script error: No such module "citation/CS1".
- ↑ Script error: No such module "citation/CS1".
- ↑ Script error: No such module "citation/CS1".
- ↑ Script error: No such module "citation/CS1".
- ↑ Script error: No such module "citation/CS1".
- ↑ Script error: No such module "Citation/CS1".
- ↑ Script error: No such module "citation/CS1".
Cite error: <ref> tag with name "Matter2011" defined in <references> is not used in prior text.
External links
- Asteroids with Satellites, Robert Johnston, johnstonsarchive.net
- Template:AstDys
- Template:PAGENAMEBASE at the JPL Small-Body DatabaseTemplate:EditAtWikidata
Script error: No such module "Navbox". Template:Large asteroids Script error: No such module "Navbox". Template:Authority control