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1582 April the 25th



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 117.31s
Longitudes are counted positively towards West and negatively towards East.

Parameters at the instant of conjunction in longitude


Conjunction on 1582/4/25 at 11h 9m 6.31s.
Geocentric longitude of Mercury 44° 24' 57.184".
Geocentric latitude of Mercury -0° 6' 13.88".
Geocentric longitude of the Sun 44° 24' 57.184".
Geocentric latitude of the Sun +0° 0' 0.28".
Equatorial parallax of the Sun 8.70".
Equatorial parallax of Mercury 15.81".
True semi-diameter of the Sun 15' 49.7".
True semi-diameter of Mercury 6.05".


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 25 th at 7h 8m 53.9s -163° 0.6' + 5° 13.6' - 72° 6.7' +16° 10.7'
Ingress, interior contact the 25 th at 7h 12m 11.0s -162° 6.5' + 4° 56.0' - 71° 17.2' +16° 10.6'
Least angular distance the 25 th at 10h 52m 6.1s - 77° 41.7' -58° 17.9' - 16° 4.7' +16° 6.4'
Egress, interior contact the 25 th at 14h 31m 45.9s +109° 37.6' -47° 47.5' + 39° 3.9' +16° 2.2'
Egress, exterior contact the 25 th at 14h 35m 3.0s +110° 37.8' -47° 31.0' + 39° 53.4' +16° 2.2'

Durations of the general phases

  • Duration of the general transit : 7h 26m 9.12s.
  • Duration of the transit inside the shadow : 7h 19m 34.90s.

Parameters of the shadow and penumbra cones and minimum elongation

  • Semi-diameter of the shadow cone : 132.75 R
  • Geocentric distance of the edge of the shadow : 81.00 R
  • Geocentric distance of the edge of the penumbra : 82.70 R
  • Semi-diameter of the cone of penombra : 134.46 R
  • Least topocentric distance : 6' 0.813"

Geocentric phases

Geocentric phases Date and instant in UTC Mercury being in the Zenith in Position Angle P
LongitudeLatitude
Ingress, exterior contact the 25 th at 7h 10m 49.5s - 71° 37.7' +16° 10.6' + 84° 46.1'
Ingress, interior contact the 25 th at 7h 14m 6.9s - 70° 48.1' +16° 10.6' + 85° 4.6'
Least angular distance the 25 th at 10h 52m 5.1s - 16° 5.0' +16° 6.4' ---
Egress, interior contact the 25 th at 14h 29m 49.9s + 38° 34.8' +16° 2.3' +219° 24.8'
Egress, exterior contact the 25 th at 14h 33m 7.3s + 39° 24.3' +16° 2.2' +219° 43.3'

Durations of the geocentric phases

  • Duration of the general transit : 7h 22m 17.79s.
  • Duration of the transit of the shadow : 7h 15m 43.05s.
  • Least geocentric angular distance : 6' 7.904"


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URL: http://www.imcce.fr/ephem/passage_eng/html_passage/MercureP1582.html
Last update : March 22nd, 2004.