User:Jcpag2012/Planetary-mass Objects

This table lists the Solar System's planetary-mass objects (planemos), which include planets, dwarf planets and planet-sized moons,^[1] ^[2] grouped by the region of the Solar System.

Region	Name	Type	Diameter (km)	Surface gravity (m/s²)	Escape velocity (km/s)	Solar day (h)^[3]	Surface area (km²×10⁶)	Surface area (system summary)^[4]
	Mercury	planet	4878	3.70	4.2	4223	75	75
	Venus	planet	12104	8.9	10.4	2802	460	460
	Earth	planet	12756	9.8	11.2	24	510.1	548
	Moon	satellite	3476	1.62	2.4	731	37.9	548
	Mars	planet	6786	3.72	5.0	25	144.8	144.8
	Ceres	dwarf planet	950	0.26	0.5	9	2.8	2.8
	Jupiter	planet	142700	24.9	59.6	10		232.9
	Io	satellite	3630	1.81	2.6	42	41.9
	Europa	satellite	3138	1.3	2.0	85	31
	Ganymede	satellite	5268	1.42	2.7	172	87
	Callisto	satellite	4800	1.25	2.5	402	73
	Saturn	planet	120400	10.45	35.5	11		106
	Mimas	satellite	397	0.064	0.16	23	0.5
	Enceladus	satellite	504	0.11	0.24	33	0.8
	Tethys	satellite	1060	0.15	0.4	45	3.6
	Dione	satellite	1120	0.23	0.5	66	4
	Rhea	satellite	1528	0.26	0.6	108	7.3
	Titan	satellite	5150	1.36	2.6	383	83
	Iapetus	satellite	1436	0.21	0.5	1918	6.7
	Uranus	planet	51100	8.9	21.3	17		24.3
	Miranda	satellite	472	0.08	0.2	34	0.7
	Ariel	satellite	1160	0.27	0.6	60	4.2
	Umbriel	satellite	1170	0.23	0.5	99	4.3
	Titania	satellite	1578	0.38	0.8	209	7.8
	Oberon	satellite	1522	0.35	0.7	323	7.3
	Neptune	planet	49500	11.2	23.6	16		23
	Triton	satellite	2706	0.78	1.5	141	23	23
Transneptunian objects	Pluto	dwarf planet	2306^[5]	0.62	1.2	153	18	22.6
	Charon	satellite	1205	0.33	0.6	153	4.6	22.6
	Haumea	dwarf planet	~1150	0.44	0.84	4	~4	~4
	Makemake	dwarf planet	~1500	~0.5	~0.8		~7	~7
	Eris	dwarf planet	2400	0.67	1.3	>8	18.1	18.1
	As well as various poorly known Trans-Neptunian objects up to 2000 km in diameter (See this table)

References

^ Bodies that are large enough that their shape is determined by gravity, as per the criterion for distinguishing between dwarf planets and small solar system bodies, as used for example by George Cole.
^
Sources:
- Planetary Fact Sheets
- Johnston's archive
- Relevant references in articles on individual bodies
^ Calculated as ${\frac {1}{|{\frac {1}{\rm {rotationperiod}}}-{\frac {1}{\rm {solarorbitperiod}}}|}}$ .
^ Combined surface area of all objects in the system that have a solid surface and exceed 900 km in diameter.
^ "How Small is Pluto?".

[planetary-1] Bodies that are large enough that their shape is determined by gravity, as per the criterion for distinguishing between dwarf planets and small solar system bodies, as used for example by George Cole.

[source-2] Sources:
Planetary Fact Sheets

Johnston's archive

Relevant references in articles on individual bodies

[3] Planetary Fact Sheets

[4] Johnston's archive

[5] Relevant references in articles on individual bodies

[sol-3] Calculated as ${\frac {1}{|{\frac {1}{\rm {rotationperiod}}}-{\frac {1}{\rm {solarorbitperiod}}}|}}$ .

[sass-4] Combined surface area of all objects in the system that have a solid surface and exceed 900 km in diameter.

[5] "How Small is Pluto?".

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