ASTRONOMICAL INFORMATION

Planetary Ephemeris Data for the Lakenheath Area
13-14 August 1956

(Note: azimuths are true north not magnetic north)

Time (GMT)

13/2100

13/2200

13/2300

14/0100

14/0300

  Alt° Az° Alt° Az° Alt° Az° Alt° Az° Alt° Az°

Mercury

not visible

not visible

not visible

not visible

not visible

Venus

not visible

not visible

not visible

not visible

16

79

Mars

1

104

9

116

17

129

28

160

29

194

Jupiter

not visible

not visible

not visible

not visible

not visible

Saturn

11

222

4

235

not visible

not visible

not visible

Moon

8

220 1 232 not visible not visible not visible

North sky 0000 GMT 14 August 1956 50°N 2.5°E

South sky 0000 GMT 14 August 1956 50°N 2.5°E

East sky 0000 GMT 14 August 1956 50°N 2.5°E

West sky 0000 GMT 14 August 1956 50°N 2.5°E

 


The Perseid Meteor Stream

The Perseid meteor radiant shows unusual mobility and descends across more than 50° of arc from moderately high elevation in the east towards the northeast between about July 25 and August 17, moving from about 2°RA 41°Dec in Andromeda across the celestial N of Perseus to 68°RA 61°Dec in Camelopardus, reaching a maximum of around 50 particles per hour around August 10-12 and dwindling rapidly over the next five nights or so. On the night of August 13-14 the shower has passed its maximum and the radiant is only about 10° of azimuth from its terminal position in the NNE. [Tver, Motz & Hartmann, 1979]