Sun

&

Moon

stuff

Earth Bulk parameters

Mass (1024 kg)                 5.9736
Volume (1010 km3)             108.321
Equatorial radius (km)	        6378.1
Polar radius (km)               6356.8  
Volumetric mean radius (km)     6371.0
Core radius (km)                3485
Ellipticity (Flattening)        0.00335
Mean density (kg/m3)            5515 
Surface gravity (m/s2)          9.798  
Surface acceleration (m/s2)     9.780
Escape velocity (km/s)         11.186
GM (x 106 km3/s2)               0.3986 
Bond albedo                     0.306
Visual geometric albedo         0.367
Visual magnitude V(1,0)        -3.86
Solar irradiance (W/m2)         1367.6 
Black-body temperature (K)       254.3
Topographic range (km)            20
Moment of inertia (I/MR2)       0.3308
J2 (x 10-6)                    1082.63  
Number of natural satellites       1   
Planetary ring system             No 

the Moon fact sheet (NASA)

the moon

Moon pictures

the sun fact sheet (NASA)

THE PLANETARY FACT SHEET (NASA)

Orbital parameters (for orbit about the Earth)

                                    Moon        

Semimajor axis (106 km)             0.3844                 

Perigee (106 km)                    0.3633

Apogee (106 km)                     0.4055

Revolution period (days)           27.3217            

Synodic period (days)              29.53               

Mean orbital velocity (km/s)        1.023                  

Max. orbital velocity (km/s)        1.076

Min. orbital velocity (km/s)        0.964

Inclination to ecliptic (deg)       5.145

Inclination to equator (deg)       18.28 - 28.58          

Orbit eccentricity                  0.0549              

Sidereal rotation period (hrs)    655.728                

Obliquity to orbit (deg)            6.68                   

Recession rate from Earth (cm/yr)   3.8

Mean values at opposition from Earth

  Distance from Earth (km)           384,467    

  Apparent diameter (seconds of arc)   1864.2

  Apparent visual magnitude             -12.74   

Sun Bulk parameters

                              Sun          Earth      Ratio (Sun/Earth)
Mass (1024 kg)                   1,989,100.	5.9736      333,000.    
GM (x 106 km3/s2)                  132,712. 	0.3986      333,000.  
Volume (1012 km3)                1,412,000. 	1.083     1,304,000. 
Volumetric mean radius (km)       696,000.       6371.      109.2
Mean density (kg/m3)                1408.    	 5515.        0.255       
Surface gravity (eq.) (m/s2)         274.0         9.78        28.0     
Escape velocity (km/s)               617.6        11.19        55.2     
Ellipticity                         0.00005        0.0034       0.015
Moment of inertia (I/MR2)              0.059       0.3308       0.178      
Visual magnitude V(1,0)              -26.74       -3.86          -  
Absolute magnitude                    +4.83
Luminosity (1024 J/s)                384.6
Mass conversion rate (106 kg/s)     4300.         
Mean energy production (10-3 J/kg)     0.1937
Surface emission (106 J/m2s)          63.29
Spectral type                         G2 V

Model values at center of Sun:
Central pressure:     2.477 x 1011 bar                 
Central temperature:  1.571 x 107 K
Central density:      1.622 x 105 kg/m3

Sun Observational Parameters

Apparent diameter from Earth
        At 1 A.U.(seconds of arc)  1919.
        Maximum (seconds of arc)   1952.
        Minimum (seconds of arc)   1887.
Distance from Earth
        Mean (106 km)              149.6
        Minimum (106 km)           147.1
        Maximum (106 km)           152.1