G1NavtotionESTIMATE
Foce bls tWo mass
       f        m, ma       --
           G - 6 - 6 7 xlg-11
 Mass       o
                Eoth6,x 15       Ka
Gaviteon             Feld
       EOFE              SUN
                 est
 CnhwtatPoral Fe ld or a pont mass
       E Gm
                R
Gaote+onal Feld at
  Centae o4uoo masses
     net=4 ma-m
At    9il Pont (E =o)
  stance of noll point om
                  A
      Jm
Fun   a
              Regula folygon 9
  Govta4onal Feld ot Centae
   oPolygon ls zeso
 G15avttforal Ce ld dve to
8) Rna-cer              R/AM
                 =O
          E      GMc
                 RR+2)la
            ESTIMATE
  Gera ph or ffeld due to
   Ring-JEIA
                   R        1l
At'R ,          Peld ts Maximum
Hollous   &phene                 M,R
     isPde O F S
 Susa ceGH     oU-tstde GM
         R                        9R
)&oltd Spheae
  hsde GMs}
           R
  outside GH        S v E c e G H
                             R
    el
                       ExL
                R
Ncceleaction due to qnavity
 8-G C F=mEJ
                foce
  heghthegh h
                 ESTIMATE
    t fo     Gsnge   helght
                 1+h
                       R           R
(   FoS         mall
                       helabt 8-
         1                  R
     atat depth d
                            R
    Yaalatton   ?n a due to hotolon ot
    toth
 p 8-RcoSE)
Jeqvotoa) 8 - R
Fo 9ejghtlessness in eqvato
9e   have +o tnche ose the
by1 +imeas.
  FmE)               mV
 fonce        fotertiel Eheg
         Nn
Potehttal due to     a   Polot Mass
         (    -Ghm
 Potendiel
                 M
Po Rn
          ESTIMATE
       GM            VCenihe=       -GM
       JRR+                         R
2) foo MollousSphese
                         M
tnaeGH
     R
                 CeHse-GM
                                R
 aSUtace FaSM        oUt sdeE-GM
           R
  Fon $o1ld phee?               4
       MR
     Vovtstde               Svfae-GM
                                     R
                            Centse   áGM
                                     aR
 Relatfon bls eld Potetist
       E-dv
 E-V                 V        dy K
                               z
Poteiol Eneagy-
     Cm,m
bscape peed
                  Congide      TE =0
     Nese.J AM
 n     gen esal
                       Nesc JagR
           Yascl.a Km ks
              ESTIMATE
D btal Veloc       (in Ci>colm Ombts
                                 AV
  Vo= M                      M
 Yesc.       V
     Tme      Period     1a, T-r
         Kepless kaus ot planetaa
     motYo 1
O     t e l t e 0nblng
                        Cloe
to ecth           veloclty is
   ven by|Vo-Ja(R+N
                 Vase.Jg(R+)
                    A A aS
   KE GMm                        V
  E.         CMm
 Totol tne        Pb--K«6.= -GMm
                  a
 Keples kauds
1)kaus ot Onbi+s
                     Total Enex
                        -GMm
        ae
Tre e    tSewel   oven 5CD   =   ,
   1Gme tavel ove AD=t9
   then,,=t2
a o sofAeq
         ESTIMATE
 otal Bneny=Const
Aeal Yeloty
        dA               Con$.
         dt         dm
   HE          F SUN
  my         m    mVsin0