Daphnis (moon)

Daphnis
Cassini probe image of Daphnis surrounded by Saturn's rings (2017)
Discovery
Discovered byCassini Imaging Science Team
Discovery dateMay 1, 2005[1]
Designations
Designation
Saturn XXXV
Pronunciation/ˈdæfnəs/[2]
Named after
Δάφνις Daphnis
S/2005 S 1
AdjectivesDaphnidian /dæfˈnɪdiən/[3]
Orbital characteristics[4]
136505.5±0.1 km
Eccentricity0.0000331±0.0000062
0.5940798 d (14.257915 h)
Inclination0.0036°±0.0013°
Satellite ofSaturn
GroupShepherd moon of the Keeler Gap
Physical characteristics
Dimensions9.8 × 8.4 × 5.6 km
(± 0.6 × 1.6 × 1.2 km)[5]: 2 
7.8±1.0 km[5]: 2 
Volume248 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.

  1. ^ Daphnis / IN DEPTH / BY THE NUMBERS
  2. ^ "Daphnis". Lexico UK English Dictionary. Oxford University Press. Archived from the original on March 22, 2020.
  3. ^ James Hall III (2015) Moons of the Solar System, p. 106
  4. ^ Jacobson, R. A.; Spitale, J.; et al. (2008). "Revised orbits of Saturn's small inner satellites". Astronomical Journal. 135 (1): 261–263. Bibcode:2008AJ....135..261J. CiteSeerX 10.1.1.653.3917. doi:10.1088/0004-6256/135/1/261. S2CID 122998668.
  5. ^ a b c d e Cite error: The named reference Thomas2020 was invoked but never defined (see the help page).
  6. ^ C.C. Porco, et al., IAUC 8524: S/2005 S 1 May 6, 2005 (discovery)
  7. ^ Martinez, C.; and Dyches, P.; Cassini-Huygens: Cassini Finds New Saturn Moon That Makes Waves Archived 2017-05-13 at the Wayback Machine May 10, 2005


Cite error: There are <ref group=lower-alpha> tags or {{efn}} templates on this page, but the references will not show without a {{reflist|group=lower-alpha}} template or {{notelist}} template (see the help page).