MOO 



Secular motion of the apogee .... 

 Secular motion of the node .... 

 Epoch of the mean longitude for 1750 

 Epoch of the longitude of the apogee for 1750 

 Epoch of the longitude of the node for 1750 . 

 Mean equation of the orbit .... 



Tropical revolution . . ' . 



Sidereal revolution 



Synodic revolution 



Anomalistic revolution 



Revolution in respect to the node 

 Tropical revolution of the apogee . 

 Sidereal revolution of do. .... 



Tropical revolution of the node 

 Sidereal revolution of do. .... 



Diurnal motion of the moon in respect to the 



Equinox ' 



Diurnal motion of the apogee .... 

 Diurnal motion of the node .... 

 Inclination of orbit to Ecliptic .... 

 Inclination of axis to orbit .... 

 Mean apparent diameter as seen from earth . 



m ' sun 



Greatest parallax . . ... 



Least 



Greatest distance from earth in J diam. of earth 



Least ' 



Mean distance ---------- 

 Eccentricity, mean distance being 1 



Mean diameter in miles 



Density (earth's density being 1} 

 Quantity of matter (earth's being 1) 

 Gravity at surface (earth's being 1) . 



The least difference between the times of the 

 successive nights in the latitude of London is llm 

 ference Ih. Ylm. 



MOON, inequalities affecting the orbit of, usually called the Lunar in- 

 equalities. 



Of these the following are the most important : 



1. Evection, or a correction applied to the equation of the centre, 



. . 3* 190 11' 15" 



. 4 14 11 15 



8 22 20 



5 20 54 56 



9 10 19 59 



6 18 32 



y, <7. h. m, s. 



21 7 43 4,7 



27 7 43 11,5 



29 12 44 2,8 



27 13 18 33,9 



27 5 5 35,6 



8 311 8 34 57,6 



8 312 11 11 39.4 



18 228 4 52 52,0 



18 223 7 13 17,7 



13 10' 35,0" 

 6 41,1 



3 10,6 

 590 



88 17 

 31 8 

 4,6 



1 1 22,99 

 V 53 50,99 



63,8419 

 55,9164 

 59,S791 

 ,05518 

 2180 ' 

 0,6149 

 0,01245 

 0,1677 



moon's rising on two 

 i and the greatest dif- 



