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1674 May the 6th and the 7th



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 23.44s
Longitudes are counted positively towards West and negatively towards East.

Parameters at the instant of conjunction in longitude


Conjunction on 1674/5/7 at 0h 52m 26.95s.
Geocentric longitude of Mercury 46° 38' 55.752".
Geocentric latitude of Mercury -0° 13' 8.19".
Geocentric longitude of the Sun 46° 38' 55.752".
Geocentric latitude of the Sun +0° 0' 0.54".
Equatorial parallax of the Sun 8.70".
Equatorial parallax of Mercury 15.83".
True semi-diameter of the Sun 15' 49.6".
True semi-diameter of Mercury 6.06".


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 6 th at 21h 52m 51.6s + 67° 46.1' -25° 17.2' +148° 55.9' +16° 41.4'
Ingress, interior contact the 6 th at 21h 58m 3.1s + 69° 25.5' -26° 14.5' +150° 14.1' +16° 41.3'
Least angular distance the 7 th at 0h 16m 29.8s +125° 12.2' -58° 25.9' -175° 0.6' +16° 38.7'
Egress, interior contact the 7 th at 2h 34m 20.5s -114° 31.6' -71° 1.2' -140° 24.3' +16° 36.1'
Egress, exterior contact the 7 th at 2h 39m 32.1s -110° 30.3' -70° 34.7' -139° 6.1' +16° 36.0'

Durations of the general phases

  • Duration of the general transit : 4h 46m 40.57s.
  • Duration of the transit inside the shadow : 4h 36m 17.38s.

Parameters of the shadow and penumbra cones and minimum elongation

  • Semi-diameter of the shadow cone : 132.41 R
  • Geocentric distance of the edge of the shadow : 23.60 R
  • Geocentric distance of the edge of the penumbra : 25.30 R
  • Semi-diameter of the cone of penombra : 134.11 R
  • Least topocentric distance : 12' 48.323"

Geocentric phases

Geocentric phases Date and instant in UTC Mercury being in the Zenith in Position Angle P
LongitudeLatitude
Ingress, exterior contact the 6 th at 21h 55m 53.8s +149° 41.6' +16° 41.3' +116° 58.1'
Ingress, interior contact the 6 th at 22h 1m 9.9s +151° 1.0' +16° 41.2' +118° 0.2'
Least angular distance the 7 th at 0h 16m 13.2s -175° 4.7' +16° 38.7' ---
Egress, interior contact the 7 th at 2h 31m 13.9s -141° 11.1' +16° 36.2' +187° 37.3'
Egress, exterior contact the 7 th at 2h 36m 30.1s -139° 51.8' +16° 36.1' +188° 39.5'

Durations of the geocentric phases

  • Duration of the general transit : 4h 40m 36.37s.
  • Duration of the transit of the shadow : 4h 30m 4.01s.
  • Least geocentric angular distance : 12' 55.430"


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URL: http://www.imcce.fr/ephem/passage_eng/html_passage/MercureP1674.html
Last update : March 22nd, 2004.