Daphnis ( Greek: Δάφνις ) is the third natural satellite of Saturn , also known as Saturn XXXV .
Daphnis's picture taken by Cassini on July 5, 2010
|Discoverer||Cassini Imaging Science Team , C. Porco|
|opening date||May 6, 2005|
|Eccentricity||0.0000331 ± 0.0000062|
|Circulation period||0.594 days|
|Diameter||~ 7 km|
|Weight||~ 5-50⋅10 13 kg|
|Density||0.34 ± 0.21 g / cm³|
|Rotation period around the axis||synchronized|
|Surface temperature||~ 78 K|
It was discovered on May 6, 2005 by a group of American astronomers led by Carolyn Porco in photographs taken on May 1, 2005 by the Cassini spacecraft  . The satellite received the provisional designation S / 2005 S 1   . In July 2006, he received the name of the character of ancient Greek mythology Daphnis  .
Daphnis makes a complete revolution around Saturn in 14 hours and 15 minutes at a distance of 136,500 km  . The eccentricity and inclination of the orbit are very small, but nonzero. It is located inside the so-called Keeler gap of the outer ring A.
The size of Daphnis is 9 × 9 × 6 km  . The surface is very light.
- CBAT . IAUC 8524: S / 2005 S 1; V2361 Cyg; C / 1998 U7 . Circular No. 8524 Harvard University (May 6, 2005) . - Opening on May 6, 2005 . Date of treatment February 7, 2019.
- ; Martinez, C .; Dyches, P. Cassini Finds New Saturn Moon That Makes Waves . Cassini: Unlocking Saturn's Secrets . NASA (May 10, 2005) . Date of treatment February 7, 2019.
- IAUC 8730: Saturn XXXV (Daphnis) (English) (pdf) (link not available) . Great Britain Online . - Naming a satellite . Date of treatment February 7, 2019. Archived October 1, 2011.
- Jacobson, RA; et al. Revised orbits of Saturn's small inner satellites // The Astronomical Journal : journal. - IOP Publishing 2008. - Vol. 135 . - P. 261-263 . - DOI : 10.1088 / 0004-6256 / 135/1/261 .
- Porco, CC ; et al. Saturn's Small Inner Satellites: Clues to Their Origins (Eng.) // Science : journal. - 2007. - Vol. 318 . - P. 1602-1607 . - DOI : 10.1126 / science.1143977 .
- Daphnis is a hero of mythology.