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1973 November the 10th



All the instants are given in Universal Time, for the present date the value of the difference between the Terrestrial Time TT and the Universal Time UT is taken as 43.00s
Longitudes are counted positively towards West and negatively towards East.

Parameters at the instant of conjunction in longitude


Conjunction on 1973/11/10 at 10h 31m 35.65s.
Geocentric longitude of Mercury 227° 53' 22.835".
Geocentric latitude of Mercury -0° 0' 26.72".
Geocentric longitude of the Sun 227° 53' 22.835".
Geocentric latitude of the Sun -0° 0' 0.04".
Equatorial parallax of the Sun 8.88".
Equatorial parallax of Mercury 13.01".
True semi-diameter of the Sun 16' 9.2".
True semi-diameter of Mercury 4.98".


General phases

Phases Date and instant
in UTC
Position of the contacts Mercury being in the Zenith in
Longitude Latitude Longitude Latitude
Ingress, exterior contact the 10 th at 7h 46m 41.0s -156° 59.5' -25° 15.6' - 59° 33.9' -17° 15.2'
Ingress, interior contact the 10 th at 7h 48m 22.2s -156° 35.0' -25° 16.4' - 59° 8.5' -17° 15.1'
Least angular distance the 10 th at 10h 32m 15.1s +105° 2.2' -60° 26.3' - 17° 55.0' -17° 10.3'
Egress, interior contact the 10 th at 13h 16m 13.2s +105° 16.8' +21° 51.2' + 23° 19.7' -17° 5.5'
Egress, exterior contact the 10 th at 13h 17m 54.4s +105° 41.4' +21° 52.0' + 23° 45.1' -17° 5.5'

Durations of the general phases

  • Duration of the general transit : 5h 31m 13.42s.
  • Duration of the transit inside the shadow : 5h 27m 51.04s.

Parameters of the shadow and penumbra cones and minimum elongation

  • Semi-diameter of the shadow cone : 233.47 R
  • Geocentric distance of the edge of the shadow : 227.08 R
  • Geocentric distance of the edge of the penumbra : 229.49 R
  • Semi-diameter of the cone of penombra : 235.88 R
  • Least topocentric distance : 0' 22.275"

Geocentric phases

Geocentric phases Date and instant in UTC Mercury being in the Zenith in Position Angle P
LongitudeLatitude
Ingress, exterior contact the 10 th at 7h 47m 23.0s - 59° 23.4' -17° 15.2' +116° 20.9'
Ingress, interior contact the 10 th at 7h 49m 4.2s - 58° 57.9' -17° 15.1' +116° 21.8'
Least angular distance the 10 th at 10h 32m 15.9s - 17° 54.8' -17° 10.3' ---
Egress, interior contact the 10 th at 13h 15m 31.3s + 23° 9.1' -17° 5.6' +292° 49.9'
Egress, exterior contact the 10 th at 13h 17m 12.5s + 23° 34.6' -17° 5.5' +292° 50.7'

Durations of the geocentric phases

  • Duration of the general transit : 5h 29m 49.51s.
  • Duration of the transit of the shadow : 5h 26m 27.13s.
  • Least geocentric angular distance : 0' 26.395"


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URL: http://www.imcce.fr/ephem/passage_eng/html_passage/MercureP1973.html
Last update : March 22nd, 2004.