Kerberos (moon)

S/2011 (134340) 1

Hubble Space Telescope discovery images of S/2011 P 1.
Discovery
Discovered by	Showalter M. R. and others[1]
Discovery date	June 28, 2011[1] (verified July 20, 2011)[2]
Orbital characteristics
Satellite of	Pluto[1]
Physical characteristics
Axial tilt	_asc_north_pole =

Kerberos (formerly known as S/2011 (134340) 1^[3] and informally as P4) is a small moon of the dwarf planet Pluto. The satellite was discovered on 28 June 2011.^[1] It is the fourth moon of Pluto to be discovered.^[1][4] The others are Charon, discovered in 1978, Nix and Hydra, which were discovered in 2005, and Styx, discovered in 2012.^[1]

1. ↑ ^{1.0 1.1 1.2 1.3 1.4 1.5} Cite error: The named reference nasanews1 was used but no text was provided for refs named (see the help page).
2. ↑ Cite error: The named reference nh1 was used but no text was provided for refs named (see the help page).
3. ↑ Green, Daniel W.E (2011-07-20). "NEW SATELLITE OF (134340) PLUTO: S/2011 (134340) 1". Central Bureau for Astronomical Telegrams. Retrieved 2011-08-01.
4. ↑ Cite error: The named reference space.com1 was used but no text was provided for refs named (see the help page).