Solar System

 

  Sun Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune Pluto Moon
Rel. Mass 332,000 0.055 0.816 1 0.107 317.9 95.2 14.5 17.4   0.01227
Diam. km 1,393,700 4,870 12,100 12,760 6,760 142,800 120,700 47,600 44,400 5,800 3,480
Mean distance from sun (million km & rel. to earth)   57.9 (0.387) 108.1 (0.723) 149.5 (1.00) 227.8 (1.524) 777.8 (5.203) 1,426 (9.54) 2,868 (19.18) 4,493 (30.07) 5,745 (39.67)  
Eccentricity   0.20562 0.00681 0.01674 0.09333 0.04837 0.05582 0.0471 0.00855 0.2486 0.0549
Inclination of orbit to ecliptic   7 00' 3 23' 0 00' 1 51' 1 18' 2 29' 0 46' 1 46' 17 9' 5 8' 40"
Obliquity of equator to orbit 7 15'     23 27' 25 10' 3 7' 26 45' 98 29   6 41'
Sidereal period   87.97 days 224.70 days 365.256 days 687.0 days 11.86 yrs 29.46 yrs 84.01 yrs 164.8 yrs 249.9 yrs 27.32 days
Synodic period   115.8 days 583.9 days n/a 779.8 days 398.8 days 378.0 days 369.7 days 367.5 days 366.7 days  
Axial rotation 24.65 days 59 days 243 days 23h 56m 24.6hr 9.8hrs 10.4hrs 10.8hrs 15.7hrs 153hrs 27d 7h 43m

opposition:  distance from earth (million km)

  elongation elongation   60 to 100           0.399

  magnitude

-26.7 0.16 -4.07 -3.5 -1.85 -2.23 -0.18 5.74 7.65 14.5 -12.55

  apparent size from earth

1,920"       13.7" to 24.6" 49" 21" (rings 46") 3.9" 2.5"   1,842"

conjunction: apparent size

  4.8" to 11.6" 10" to 59"   3.5" to 4" 32" 16" (rings 37") 1.7" 1.2"    
next sup. conjunction         1/09/04 22/09/04 09/07/04        
next opposition         07/11/05 04/03/04 01/01/04 28/08/04 06/08/04    
max. eastern elongation   9/12/03 30/03/04                

Sedna:

Kuiper Belt:

Oort Cloud: