Partial lunar eclipse of 2023, October 28

     The beginning of the eclipse is visible from Eurasia, Australia, Africa,
 Madagascar, Greenland, the West Pacific,  the Indian, Arctic and  the North At-
 lantic Oceans.
     The end of the eclipse is visible from Eurasia, except  the  extreme  east,
 Africa, Madagascar, Greenland, eastern America, the Indian, Atlantic  and  Arc-
 tic oceans.

                   Universal time of geocentric opposition
                                                         h  m  s
                in right ascension  2023, October 28,  21 01 39.5

                                                  Sun              Moon
                                                h  m  s          h  m  s
  Right ascension  . . . . . . . . . . . . .  14 11 33.526      2 11 33.526
                                                      s                s   
     Hourly motion . . . . . . . . . . . . .       + 9.664         +133.818
                                                ø  '  "          ø  '  "   
  Declination. . . . . . . . . . . . . . . . -13 14 50.15     +14 16 52.00 
                                                      "                "   
     Hourly motion . . . . . . . . . . . . .       -49.99          +894.64 
                                                      "             '  "   
  Equatorial horizontal parallax . . . . . .         8.85         59 17.79 
                                                   '  "             '  "   
  Apparent semidiameter  . . . . . . . . . .     16 05.88         16 09.48 


                        Circumstances of the Eclipse
                                                             Position Angles
                                                           of the Moon's axis
                                                         h  m        o  
     Moon enters penumbra . . . . . . .    October 28, 17 59.7    341.62
     Moon enters umbra  . . . . . . . .                19 34.4    341.80
     Greatest eclipse . . . . . . . . .                20 14.0    341.89
     Moon leaves umbra  . . . . . . . .                20 53.1    341.97
     Moon leaves penumbra . . . . . . .                22 28.1    342.17

  --------------------------------------------
  Contacts|  Position |The Moon being in the Zenith in
  of umbra|   Angles  |----------------------
 with Limb|  from the |          |             
  of Moon |North Point| Latitude | Longitude    
 ---------+-----------+----------+-----------  
          |     o  '  |    o  '  |    o  '     
 First    |  133 20.2 ³ +14 00.5 ³  61 35.9 E  
 Last     |  175 55.3 ³ +14 20.3 ³  42 35.6 E

 Magnitude of the eclipse          0.130
                                    "   
 Angular radius of the penumbra 4623.92 
                                    "   
 Angular radius of the umbra    2654.15 

--------------------------------------------------------------------------------
     |     |      |      |Magnitudes of I     |     |      |      |Magnitudes of
  T  |  s  |   d  |   P  |--------------I  T  |  s  |   d  |   P  |-------------
     |     |      |      |umbral| penum.I     |     |      |      |umbral| penum.
     |     |      |      eclipse|eclipseI     |     |      |      eclipse|eclipse
-----+-----+------+------+------+-------+-----+-----+------+------+------+------
  h m|    "|      |    o |      |       I  h m|    "|      |    o |      |      
18 00| 5621| 2.115| 101.6|   -  |   -   I20 20| 3374| 1.271| 157.5| 0.129| 1.144
   10| 5359| 2.016| 103.8|   -  | 0.123 I   30| 3406| 1.283| 163.1| 0.112| 1.128
   20| 5104| 1.921| 106.1|   -  | 0.254 I   40| 3469| 1.307| 168.5| 0.079| 1.095
   30| 4859| 1.829| 108.7|   -  | 0.380 I   50| 3562| 1.343| 173.7| 0.031| 1.047
   40| 4625| 1.741| 111.6|   -  | 0.501 I     |     |      |      |      |      
   50| 4404| 1.658| 114.7|   -  | 0.614 I21 00| 3683| 1.388| 178.6|   -  | 0.985
     |     |      |      |      |       I   10| 3829| 1.443| 183.2|   -  | 0.909
19 00| 4198| 1.580| 118.2|   -  | 0.721 I   20| 3997| 1.507| 187.4|   -  | 0.822
   10| 4009| 1.509| 122.0|   -  | 0.818 I   30| 4185| 1.578| 191.2|   -  | 0.725
   20| 3839| 1.446| 126.2|   -  | 0.905 I   40| 4390| 1.655| 194.7|   -  | 0.620
   30| 3691| 1.390| 130.8|   -  | 0.981 I   50| 4610| 1.738| 197.9|   -  | 0.506
   40| 3569| 1.344| 135.6| 0.029| 1.044 I     |     |      |      |      |      
   50| 3474| 1.308| 140.8| 0.078| 1.093 I22 00| 4842| 1.826| 200.7|   -  | 0.386
     |     |      |      |      |       I   10| 5086| 1.918| 203.3|   -  | 0.261
20 00| 3409| 1.284| 146.3| 0.111| 1.127 I   20| 5338| 2.013| 205.7|   -  | 0.130
   10| 3375| 1.272| 151.8| 0.128| 1.144 I   30| 5599| 2.112| 207.8|   -  |   -  
                                        
   T - universal time ( TDT - UT1 = 70.0s);
   s - the angular distance between the centers of the Moon and the shadow;
   d - the linear distance between the Moon's center and that of the shadow
       in terms of the shadow's radius;
   P - the position angle of the Moon's disk semi-diameter directed towards
       the shadow's center.