![]() Cassini probe image of Daphnis surrounded by Saturn's rings (2017) | |
Discovery | |
---|---|
Discovered by | Cassini Imaging Science Team |
Discovery date | May 1, 2005[1] |
Designations | |
Designation | Saturn XXXV |
Pronunciation | /ˈdæfnəs/[2] |
Named after | Δάφνις Daphnis |
S/2005 S 1 | |
Adjectives | Daphnidian /dæfˈnɪdiən/[3] |
Orbital characteristics[4] | |
136505.5±0.1 km | |
Eccentricity | 0.0000331±0.0000062 |
0.5940798 d (14.257915 h) | |
Inclination | 0.0036°±0.0013° |
Satellite of | Saturn |
Group | Shepherd moon of the Keeler Gap |
Physical characteristics | |
Dimensions | 9.8 × 8.4 × 5.6 km (± 0.6 × 1.6 × 1.2 km)[5]: 2 |
7.8±1.0 km[5]: 2 | |
Volume | 248 km3[a] |
Mass | (6.8±1.7)×1013 kg[5]: 3 |
Mean density | 0.276±0.144 g/cm3[5]: 3 |
0.0002 m/s2 at longest axis to 0.0006 m/s2 at poles | |
0.001 km/s at longest axis to 0.002 km/s at poles | |
synchronous | |
unknown | |
Albedo | ≈ 0.5 |
Temperature | ≈ 78 K |
Daphnis is an inner satellite of Saturn. It is also known as Saturn XXXV; its provisional designation was S/2005 S 1.[6][7] Daphnis is about 8 kilometers in diameter, and orbits the planet in the Keeler Gap within the A ring.
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