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-1155 May the 21st



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 30384.30s
Longitudes are counted positively towards West and negatively towards East.

Parameters at the instant of conjunction in longitude


Conjunction on -1155/5/21 at 4h 18m 3.25s.
Geocentric longitude of Venus 48° 5' 27.051".
Geocentric latitude of Venus +0° 4' 50.17".
Geocentric longitude of the Sun 48° 5' 27.051".
Geocentric latitude of the Sun -0° 0' 8.90".
Equatorial parallax of the Sun 8.64".
Equatorial parallax of Venus 30.34".
True semi-diameter of the Sun 15' 42.8".
True semi-diameter of Venus 28.79".


General phases

Phases Date and instant
in UTC
Position of the contacts Venus being in the Zenith in
Longitude Latitude Longitude Latitude
Ingress, exterior contact the 21 st at 0h 31m 4.1s + 84° 49.0' +40° 4.4' -170° 12.8' +17° 38.5'
Ingress, interior contact the 21 st at 0h 46m 15.1s + 88° 1.9' +41° 4.9' -166° 24.1' +17° 38.3'
Least angular distance the 21 st at 4h 29m 1.4s + 12° 36.6' +60° 3.7' -110° 28.1' +17° 34.6'
Egress, interior contact the 21 st at 8h 11m 47.6s + 33° 9.3' - 6° 4.5' - 54° 32.2' +17° 30.8'
Egress, exterior contact the 21 st at 8h 26m 58.6s + 36° 36.4' - 7° 7.6' - 50° 43.5' +17° 30.6'

Durations of the general phases

  • Duration of the general transit : 7h 55m 54.52s.
  • Duration of the transit inside the shadow : 7h 25m 32.59s.

Parameters of the shadow and penumbra cones and minimum elongation

  • Semi-diameter of the shadow cone : 42.12 R
  • Geocentric distance of the edge of the shadow : -28.48 R
  • Geocentric distance of the edge of the penumbra : -31.14 R
  • Semi-diameter of the cone of penombra : 44.77 R
  • Least topocentric distance : 4' 34.211"

Geocentric phases

Geocentric phases Date and instant in UTC Venus being in the Zenith in Position Angle P
LongitudeLatitude
Ingress, exterior contact the 21 st at 0h 36m 46.3s -168° 46.9' +17° 38.4' + 47° 21.4'
Ingress, interior contact the 21 st at 0h 51m 59.4s -164° 57.6' +17° 38.2' + 46° 12.2'
Least angular distance the 21 st at 4h 28m 57.7s -110° 29.1' +17° 34.6' ---
Egress, interior contact the 21 st at 8h 6m 2.8s - 55° 58.8' +17° 30.9' +264° 7.1'
Egress, exterior contact the 21 st at 8h 21m 15.9s - 52° 9.5' +17° 30.7' +262° 57.9'

Durations of the geocentric phases

  • Duration of the general transit : 7h 44m 29.66s.
  • Duration of the transit of the shadow : 7h 14m 3.32s.
  • Least geocentric angular distance : 4' 55.858"


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URL: http://www.imcce.fr/ephem/passage_eng/html_passage/VenusN1155.html
Last update : March 22nd, 2004.