Moons and Rings

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Object		Provisional		Semi-Major Axis	Diameter
		Designation	Comments	or Radius	(km)


Mercury (total moons):	0
Mercury Equator				2,440	4,880


Venus (total moons):	0
Venus Equator				6,052	12,104


Earth (total moons):	1
Earth Equator				6,378	12,756
Moon				384,400	3,475


Mars (total moons):	2
Mars Equator				3,397	6,794
Phobos				9,380	22
Deimos				23,460	12


Ceres (total moons):	0
Ceres Equator:				425	850


Jupiter (total moons):	79
Jupiter Equator				71,492	142,984
Halo ring inner edge		1979 J1R		100,000
Halo ring outer edge		1979 J1R		122,000
Main ring inner edge		1979 J2R		122,000
Metis		S/1979 J3	Amalthea Group	127,690	43
Adrastea		S/1979 J1	Amalthea Group	128,690	16
Main ring outer edge		1979 J2R		129,000
Inner Gossamer ring - inner edge		1979 J3R		129,200
Amalthea		V	Amalthea Group	181,366	167
Inner Gossamer ring outer edge		1979 J3R		182,000
Outer Gossamer ring inner edge				182,000
Thebe		S/1979 J2	Amalthea Group	221,889	99
Outer Gossamer ring outer edge				224,900
Io		I	Galilean	421,700	3,643
Europa		II	Galilean	671,034	3,122
Ganymede		III	Galilean	1,070,412	5,262
Callisto		IV	Galilean	1,882,709	4,821
Themisto		S/1975 J1	Themisto Group	7,393,216	8
Leda		XIII	Himalia Group	11,187,781	20
Himalia		VI	Himalia Group	11,451,971	170
Ersa
Pandia
Lysithea		X	Himalia Group	11,740,560	36
Elara		VII	Himalia Group	11,778,034	86
Dia		S/2000 J11	Himalia Group	12,570,424	4
Carpo		S/2003 J20	(?)	17,144,873	3
S/20003 J12		S/2003 J12
Valetudo		S/2003 J12	(?)	17,739,539	1
Euporie		S/2001 J10	Ananke Group (?)	19,088,434	2
Eupheme		S/2003 J3	Ananke Group (?)	19,621,780	2
S/2003 J18		S/2003 J18	Ananke Group (?)	19,812,577	2
S/2011 J1 ?		S/2011 J1		20,155,290	1
S/2010 J2		S/2010 J2		20,252,743	1
Thelxinoe		S/2003 J22	Ananke Group (?)	20,453,753	2
Euanthe		S/2001 J7	Ananke Group	20,464,854	3
Helike		S/2003 J6	Ananke Group (?)	20,540,266	4
Orthosie		S/2001 J9	Ananke Group (?)	20,567,971	2
S/2017 J7
S/2016 J1		S2016 J1		20,595,487	2
S/2017 J3
Iocaste		S/2000 J3	Ananke Group	20,722,566	5
S/2003 J16		S/2003 J16	Ananke Group	20,743,779	2
Praxidike		S/2000 J7	Ananke Group	20,823,948	7
Harpalyke		S/2000 J5	Ananke Group	21,063,814	4
Mneme		S/2003 J21	Ananke Group	21,129,786	2
Hermippe		S/2001 J3	Ananke Group (?)	21,182,086	4
Thyone		S/2001 J2	Ananke Group	21,405,570	4
S/2017 J9
Ananke		XII	Ananke Group	21,454,952	16
Herse		S/2003 J17	Carme Group	22,134,306	2
Aitne		S/2001 J11	Carme Group	22,285,161	3
S/2017 J6
S/2011 J1
Kale		S/2001 J8	Carme Group	22,409,207	2
Taygete		S/2000 J9	Carme Group	22,438,648	5
S/2003 J19		S/2003 J19	Carme Group	22,709,061	2
Chaldene		S/2000 J10	Carme Group	22,713,813	4
Philophrosyne		S/2003 J15	Ananke Group (?)	22,720,999	2
S/2003 J10		S/2003 J10	Carme Group (?)	22,730,813	2
S/2003 J23		S/2003 J23	Pasiphae Group	22,739,654	2
Erinome		S/2000 J4	Carme Group	22,986,266	3
Aoede		S/2003 J7	Pasiphae Group	23,044,175	4
Kallichore		S/2003 J11	Carme Group (?)	23,111,823	2
S/2017 J5
S/2017 J8
Kalyke		S/2000 J2	Carme Group	23,180,773	5
Carme		XI	Carme Group	23,197,992	46
Callirrhoe		S/1999 J1	Pasiphae Group	23,214,986	9
Eurydome		S/2001 J4	Pasiphae Group (?)	23,230,858	3
S/2017 J2				23,251,837	2
Pasithee		S/2001 J6	Carme Group	23,307,318	2
S/2010 J1
S/2011 J2		S/2011 J2		23,329,710	1
Kore		S/2003 J14	Pasiphae Group	23,345,093	2
Cylene		S/2003 J13	Pasiphae Group	23,396,269	2
Eukelade		S/2003 J1	Carme Group	23,483,694	4
S/2017 J1		S/2017 J1		23,483,983	2
S/2003 J4		S/2003 J4	Pasiphae Group	23,570,790	2
Pasiphae		VIII	Carme Group	23,609,042	60
Hegemone		S/2003 J8	Pasiphae Group	23,702,511	3
Arche		S/2002 J1	Carme Group	23,717,051	3
Isonoe		S/2000 J6	Carme Group	23,800,647	4
S/2003 J9		S/2003 J9	Carme Group	23,857,808	1
Eirene		S/2003 J5	Carme Group	23,973,926	4
Sinope		IX	Pasiphae Group	24,057,865	38
Sponde		S/2001 J5	Pasiphae Group	24,252,627	2
Autonoe		S/2001 J1	Pasiphae Group	24,264,445	4
Megaclite		S/2000 J8	Pasiphae Group	24,687,239	5
S/2003 J2		S/2003 J2	(?)	30,290,846	2


Saturn (total moons):	82
Saturn Equator				60,268	120,536
D ring inner edge				66,900
D ring outer edge				74,510
C ring inner edge				74,658
Columbo Gap - inner edge				77,800
Columbo Gap - outer edge				77,900
Maxwell Gap - inner edge				87,500
Maxwell Gap - outer edge				87,770
Bond Gap - inner edge				88,690
Bond Gap - outer edge				88,720
Dawes Gap - inner edge				90,200
Dawes Gap - outer edge				90,220
C ring outer edge				92,000
B ring inner edge				92,000
S/2009 S1		S/2009 S1	In B Ring	117,000	0.3
B ring outer edge				117,580
Cassini Division - inner edge				117,580
Huygens Gap - inner edge				117,680
Huygens Gap - outer edge				118,120
Herschel Gap - inner edge				118,183
Herschel Gap - outer edge				118,285
Russell Gap - inner edge				118,597
Russell Gap - outer edge				118,630
Jeffreys Gap - inner edge				118,931
Jeffreys Gap - outer edge				118,969
Kuiper Gap - inner edge				119,403
Kuiper Gap - outer edge				119,406
Laplace Gap - inner edge				119,848
Laplace Gap - outer edge				120,086
Bessel Gap - inner edge				120,236
Bessel Gap - outer edge				120,246
Barnard gap - inner edge				120,305
Barnard Gap - outer edge				120,318
Cassini Division - outer edge				122,170
A ring inner edge				122,170
Encke Gap - inner edge				133,570
Pan		S/1981 S13	In Encke Division	133,583	26
Encke Gap - outer edge				133,895
Daphnis		S/2005 S1	In Keeler Gap	136,505	7
Keeler Gap - inner edge				136,530
Keeler Gap - outer edge				136,565
A ring outer edge				136,775
Roche Division - inner edge				136,775
Atlas		S/1980 S28	Outer A Ring Shepherd	137,700	20
Roche Division - outer edge				139,380
Prometheus		S/1980 S27	Inner F Ring Shepherd	139,400	94
F Ring - inner edge			Eccentric; clumped	140,180
F Ring - outer edge			Eccentric; clumped	140,244
Pandora		S/1980 S26	Outer F Ring Shepherd	141,700	81
Janus-Epimetheus Ring - inner edge				149,000
Epimetheus		S/1980 S3	Coorbital w/ Janus	151,400	117
Janus		S/1980 S1	Coorbital w/ Epimetheus	151,500	181
Janus-Epimetheus Ring - outer edge				154,000
Aegaeon		S/2008 S1	Embedded in G Ring	167,500	0.25
G ring inner edge				170,000
G ring outer edge				175,000
E ring inner edge				181,000
Mimas		I		185,600	397
Methone		S/2004 S1		194,000	3
R/2006 S5				194,000
Anthe		S/2007 S4		197,700	4
Pallene Ring - inner edge				211,000
Pallene		S/2004 S2		211,000	4
Pallene Ring - outer edge				213,500
Enceladus		II		238,100	499
Tethys		III		294,700	1,060
Telesto		S/1980 S13	Leading Tethys Trojan	294,700	24
Calypso		S/1980 S25	Trailing Tethys Trojan	294,700	19
Dione		IV		377,400	1,120
Helene		S/1980 S6	Leading Dione Trojan	377,400	32
Polydeuces		S/2004 S5	Trailing Dione Trojan	377,400	4
E ring outer edge				483,000
Rhea		V		527,100	1,528
Titan		VI		1,221,900	5,151
Hyperion		VII		1,464,100	266
Iapetus		VIII		3,560,800	1,460
Phobe ring inner edge				6,000,000
Kiviuq		S/2000 S5	Inuit Group	11,110,000	14
Ijiraq		S/2000 S6	Inuit Group	11,125,000	10
Phoebe ring outer edge				12,000,000
Phoebe		IX	Norse Group	12,944,300	215
Paaliaq		S/2000 S2	Inuit Group	15,200,000	19
Skathi		S/2000 S8	Norse Group	15,539,000	6
S/2004 S37				15,892,000
Albiorix		S/2000 S11	Gallic Group	16,182,000	26
S/2007 S2		S/2007 S2		16,523,162	6
Bebhionn		S/2004 S11	Inuit Group	16,898,414	6
S/2004 S29				16,891,000
Erriapus		S/2000 S10	Gallic Group	17,342,000	9
Skoll		S/2006 S8		17,473,768	6
Siarnaq		S/2000 S3	Inuit Group	17,531,000	32
S/2004 S31				17,568,000
Tarqeq		S/2007 S1		17,911,000	7
Tarvos		S/2000 S4	Gallic Group	17,982,000	13
S/2004 S13		S/2004 S13	Norse Group	18,056,257	6
Greip		S/2006 S4		18,065,667	6
Hyrrokkin		S/2004 S19		18,168,291	8
Mundilfari		S/2000 S9	Norse Group	18,418,000	7
Jarnsaxa		S/2006 S6		18,556,916	6
S/2006 S1		S/2006 S1		18,930,254	6
Narvi		S/2003 S1	Norse Group	19,007,000	7
S/2004 S17		S/2004 S17	Norse Group	19,099,179	4
S/2007 S3		S/2007 S3		19,179,348	5
Bergelmir		S/2004 S15	Norse Group	19,372,195	6
S/2004 S20			Norse Group	19,418,000
Suttungr		S/2000 S12	Norse Group	19,459,000	6
Aegir		S/2004 S10	Norse Group	19,614,391	6
Hati		S/2004 S14	Norse Group	19,709,344	6
S/2004 S12		S/2004 S12	Norse Group	19,905,871	5
Thrymr		S/2000 S7	Norse Group	19,941,000	6
Bestla		S/2004 S18	Norse Group	19,958,738	7
S/2004 S27			Norse Group	19,976,000
Farbauti		S/2004 S9	Norse Group	19,984,783	5
S/2004 S7		S/2004 S7	Norse Group	20,576,697	6
S/2004 S22				20,636,000
S/2006 S3		S/2006 S3		21,076,295	6
S/2004 S23			Norse Group	21,163,000
S/2004 S25			Norse Group	21,174,000
S/2004 S32			Norse Group	21,214,000
S/2004 S38			Norse Group	21,908,000
Fenrir		S/2004 S16	Norse Group	21,930,648	4
S/2004 S28				22,020,000
Surtur		S/2006 S7		22,243,637	6
Kari		S/2006 S2		22,321,218	7
S/2004 S35			Norse Group	22,412,000
S/2004 S21			Norse Group	22,645,000
S/2004 S24			Gallic Group	22,645,000
Loge		S/2006 S5	Norse Group	22,901,000	6
Ymir		S/2000 S1	Norse Group	22,984,326	18
S/2004 S36			Norse Group	23,041,000
S/2004 S39			Norse Group	23,192,000
S/2004 S33
S/2004 S34			Norse Group	23,575,000
S/2004 S34			Norse Group	24,168,000
Fornjot		S/2004 S8	Norse Group	24,299,000	6
S/2004 S26			Norse Group	24,484,389
				26,676,000

Uranus (total moons):	27
Uranus Equator				25,559	51,118
Ring 6				41,837
Ring 5				42,235
Ring 4				42,571
Alpha ring				44,718
Beta ring				45,661
Eta ring				47,176
Gamma ring				47,626
Delta ring				48,303
Cordelia		S/1986 U7	ε Ring Shepherd	49,800	40
Lambda ring				50,024
Epsilon ring				51,149
Ophelia		S/1986 U8	ε Ring Shepherd	53,800	43
Bianca		S/1986 U9		59,200	51
Cressida		S/1986 U3		61,800	80
Desdemona		S/1986 U6		62,700	64
Juliet		S/1986 U2		64,400	94
Portia		S/1986 U1		66,100	135
Nu ring		R/2003 U2		67,700
Rosalind		S/1986 U4		69,900	72
Cupid		S/2003 U2		74,800	26
Belinda		S/1986 U5		75,300	81
Perdita		S/1986 U10		76,420	20
Puck		S/1985 U1		86,000	162
Mu ring		R/2003 U1		92,700
Mab		S/2003 U1	μ Ring Source	97,734	10
Miranda		V		129,900	472
Ariel		I		190,900	1,158
Umbriel		II		266,000	1,169
Titania		III		436,300	1,578
Oberon		IV		583,500	1,523
Francisco		S/2001_U3	Irregular, Inner	4,276,000	12
Caliban		S/1997 U1	Irregular, Retrograde, Inner	7,231,000	98
Stephano		S/1999 U2	Irregular, Retrograde, Inner	8,004,000	20
Trinculo		S/2001 U1	Irregular, Retrograde, Inner	8,504,000	10
Sycorax		S/1997 U2	Irregular, Retrograde, Outer	12,179,000	190
Margaret		S/2003_U3	Irregular	14,345,000	11
Prospero		S/1999 U3	Irregular, Retrograde, Outer	16,256,000	30
Setebos		S/1999 U1	Irregular, Retrograde, Outer	17,418,000	30
Ferdinand		S/2001_U2	Irregular, Retrograde, Outer	20,901,000	12


Neptune (total moons):	14
Neptune Equator				24,776	49,552
Galle ring		1989 N3R		41,900
Naiad		S/1989 N6	Regular	48,227	66
Thalassa		S/1989 N5	Regular	50,075	82
Despina		S/1989 N3	Regular	52,526	150
LeVerrier ring		1989 N2R		53,200
Lassell ring				53,200
Arago ring				57,200
Galatea		S/1989 N4	Regular	61,953	176
Liberte ("Leading" ring arc)				62,900
Egalite ("Equidistant" ring arc)				62,900
Fraternite ("Following" ring arc)				62,900
Courage ring arc				62,900
Adams ring		1989 N1R		62,933
Larissa		S/1989 N2	Regular	73,548	194
S/2004 N1		S/2004 N1		105,300	20
Proteus		S/1989 N1	Regular	117,647	420
Triton		I	Retrograde	354,800	2,707
Nereid		II	Irregular	5,513,400	340
Halimede		S/2002_N1	Irregular, Retrograde	15,728,000	48
Sao		S/2002_N2	Irregular	22,422,000	48
Laomedeia		S/2002_N3	Irregular	23,571,000	48
Psamathe		S/2003_N1	Irregular, Retrograde	46,695,000	60
Neso		S/2002_N4	Irregular, Retrograde	48,387,000	28


Pluto (total moons):	5
Pluto Equator				1,180	2,360
Charon		S/1978 P1		19,571	1,186
Styx		S/2012 (134340) 1		42,000	25
Nix		S/2005 P2		48,675	137
Kerberos		S/2011 P1		59,000	34
Hydra		S/2005 P1		64,780	167


Haumea (total moons):	2	2003 EL₆₁	'Santa'
Haumea Equator				650	1,300
Namaka			'Blitzen'	39,000	170
Hi'iaka			'Rudolph'	49,500	310


Makemake (total moons):	0	2005 FY₉
Makemake Equator				715	1,430
		S/2015 1 (136472)	'MK 2'	20,000	160


Eris (total moons):	1	2003 UB₃₁₃	'Xena'
Eris Equator				1,163	2,326
Dysnomia			'Gabrielle'	37,370	684


Planet Moons:	205
Dwarf Planet Moons:	9
Total Moons:	214