Daphnis (moon)

Daphnis
	Cassini probe image of Daphnis surrounded by Saturn's rings (2017)
Discovery
Discovered by	Cassini Imaging Science Team
Discovery date	May 1, 2005
Designations
Designation	Saturn XXXV
Pronunciation	/ˈdæfnəs/
Named after	Δάφνις Daphnis
Alternative names	S/2005 S 1
Adjectives	Daphnidian /dæfˈnɪdiən/
Orbital characteristics
Semi-major axis	136505.5±0.1 km
Eccentricity	0.0000331±0.0000062
Orbital period (sidereal)	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)
Mean diameter	7.8±1.0 km
Volume	248 km3
Mass	(6.8±1.7)×1013 kg
Mean density	0.276±0.144 g/cm3
Surface gravity	0.0002 m/s2 at longest axis; to 0.0006 m/s2 at poles
Escape velocity	0.001 km/s at longest axis; to 0.002 km/s at poles
Synodic rotation period	synchronous
Axial tilt	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.

^ Daphnis / IN DEPTH / BY THE NUMBERS
^ "Daphnis". Lexico UK English Dictionary. Oxford University Press. Archived from the original on March 22, 2020.
^ James Hall III (2015) Moons of the Solar System, p. 106
^ 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.
^ ^a ^b ^c ^d ^e Cite error: The named reference Thomas2020 was invoked but never defined (see the help page).
^ C.C. Porco, et al., IAUC 8524: S/2005 S 1 May 6, 2005 (discovery)
^ 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).

[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

[Jacobson2008-4] 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.

[Thomas2020-5] Cite error: The named reference Thomas2020 was invoked but never defined (see the help page).

[IAUC8524-7] C.C. Porco, et al., IAUC 8524: S/2005 S 1 May 6, 2005 (discovery)

[8] 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

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Discovery
Cassini probe image of Daphnis surrounded by Saturn's rings (2017)
Discovered by	Cassini Imaging Science Team
Discovery date	May 1, 2005^[1]
Designations
Designation	Saturn XXXV
Pronunciation	/ˈdæfnəs/^[2]
Named after	Δάφνις Daphnis
Alternative names	S/2005 S 1
Adjectives	Daphnidian /dæfˈnɪdiən/^[3]
Orbital characteristics^[4]
Semi-major axis	136505.5±0.1 km
Eccentricity	0.0000331±0.0000062
Orbital period (sidereal)	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
Mean diameter	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
Surface gravity	0.0002 m/s² at longest axis to 0.0006 m/s² at poles
Escape velocity	0.001 km/s at longest axis to 0.002 km/s at poles
Synodic rotation period	synchronous
Axial tilt	unknown
Albedo	≈ 0.5
Temperature	≈ 78 K