Planet synopsis

Planet	Diameter (km)	Distance from Sun (x106 km)	Avg. Temp. (°C)
The sun	1,391,000	0	5,500
Mercury	4,879	52.6	167
Venus	12,104	108.3	464
Earth	12,756	147.2	15
Mars	6,792	240.79	-65
Jupiter	142,984	778.6	-110
Saturn	120,536	1,440.4	-140
Uranus	51,118	2,924.3	-195
Neptune	49,528	4,471.4	-200
Keiper belt	-	4,500 - 7,500	-223
Pluto	2,370	5,906.4	-232
Oort cloud	-	750,000 - 15,000,000	-268

1 AU = 150 x 10⁶ km (distance from the Earth to the Sun)
1 Parsec = 30.9 x 10¹² km (distance where the Earth's orbit radius subtends 1 arcsecond)