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1552 October the 28th



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 151.75s
Longitudes are counted positively towards West and negatively towards East.

Parameters at the instant of conjunction in longitude


Conjunction on 1552/10/28 at 15h 30m 6.86s.
Geocentric longitude of Mercury 225° 10' 56.521".
Geocentric latitude of Mercury +0° 7' 20.37".
Geocentric longitude of the Sun 225° 10' 56.521".
Geocentric latitude of the Sun -0° 0' 0.71".
Equatorial parallax of the Sun 8.89".
Equatorial parallax of Mercury 13.00".
True semi-diameter of the Sun 16' 10.3".
True semi-diameter of Mercury 4.97".


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 28 th at 12h 51m 48.3s - 72° 14.0' + 0° 51.8' + 16° 37.0' -16° 23.4'
Ingress, interior contact the 28 th at 12h 53m 40.6s - 71° 41.2' + 1° 8.9' + 17° 5.2' -16° 23.4'
Least angular distance the 28 th at 15h 19m 20.3s - 4° 50.3' +60° 1.6' + 53° 43.6' -16° 19.0'
Egress, interior contact the 28 th at 17h 45m 6.6s +159° 19.2' +49° 3.9' + 90° 23.7' -16° 14.6'
Egress, exterior contact the 28 th at 17h 46m 58.9s +159° 58.7' +48° 48.0' + 90° 51.9' -16° 14.5'

Durations of the general phases

  • Duration of the general transit : 4h 55m 10.67s.
  • Duration of the transit inside the shadow : 4h 51m 25.93s.

Parameters of the shadow and penumbra cones and minimum elongation

  • Semi-diameter of the shadow cone : 234.86 R
  • Geocentric distance of the edge of the shadow : -128.69 R
  • Geocentric distance of the edge of the penumbra : -131.11 R
  • Semi-diameter of the cone of penombra : 237.28 R
  • Least topocentric distance : 7' 12.338"

Geocentric phases

Geocentric phases Date and instant in UTC Mercury being in the Zenith in Position Angle P
LongitudeLatitude
Ingress, exterior contact the 28 th at 12h 52m 34.7s + 16° 48.7' -16° 23.4' + 88° 59.0'
Ingress, interior contact the 28 th at 12h 54m 27.2s + 17° 17.0' -16° 23.3' + 88° 41.1'
Least angular distance the 28 th at 15h 19m 21.5s + 53° 43.9' -16° 19.0' ---
Egress, interior contact the 28 th at 17h 44m 20.2s + 90° 12.0' -16° 14.6' +322° 6.2'
Egress, exterior contact the 28 th at 17h 46m 12.7s + 90° 40.3' -16° 14.5' +321° 48.3'

Durations of the geocentric phases

  • Duration of the general transit : 4h 53m 37.97s.
  • Duration of the transit of the shadow : 4h 49m 52.99s.
  • Least geocentric angular distance : 7' 16.438"


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URL: http://www.imcce.fr/ephem/passage_eng/html_passage/MercureP1552.html
Last update : March 22nd, 2004.