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1761 June the 6th



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 14.40s
Longitudes are counted positively towards West and negatively towards East.

Parameters at the instant of conjunction in longitude


Conjunction on 1761/6/6 at 5h 40m 31.45s.
Geocentric longitude of Venus 75° 36' 3.146".
Geocentric latitude of Venus -0° 9' 36.18".
Geocentric longitude of the Sun 75° 36' 3.146".
Geocentric latitude of the Sun +0° 0' 0.53".
Equatorial parallax of the Sun 8.66".
Equatorial parallax of Venus 30.42".
True semi-diameter of the Sun 15' 45.0".
True semi-diameter of Venus 28.86".


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 6 th at 1h 55m 17.1s +127° 32.3' -18° 40.1' -150° 59.1' +22° 34.8'
Ingress, interior contact the 6 th at 2h 13m 9.7s +133° 6.0' -20° 58.1' -146° 29.8' +22° 34.6'
Least angular distance the 6 th at 5h 19m 16.1s -133° 36.7' -63° 11.4' - 99° 45.5' +22° 32.3'
Egress, interior contact the 6 th at 8h 25m 20.1s + 10° 12.1' -46° 45.2' - 53° 1.8' +22° 29.9'
Egress, exterior contact the 6 th at 8h 43m 12.6s + 16° 39.2' -44° 39.8' - 48° 32.5' +22° 29.7'

Durations of the general phases

  • Duration of the general transit : 6h 47m 55.51s.
  • Duration of the transit inside the shadow : 6h 12m 10.40s.

Parameters of the shadow and penumbra cones and minimum elongation

  • Semi-diameter of the shadow cone : 42.11 R
  • Geocentric distance of the edge of the shadow : 15.89 R
  • Geocentric distance of the edge of the penumbra : 18.55 R
  • Semi-diameter of the cone of penombra : 44.76 R
  • Least topocentric distance : 9' 8.698"

Geocentric phases

Geocentric phases Date and instant in UTC Venus being in the Zenith in Position Angle P
LongitudeLatitude
Ingress, exterior contact the 6 th at 2h 1m 57.3s -149° 18.6' +22° 34.7' +111° 6.0'
Ingress, interior contact the 6 th at 2h 20m 3.4s -144° 45.9' +22° 34.5' +113° 45.7'
Least angular distance the 6 th at 5h 19m 15.9s - 99° 45.6' +22° 32.3' ---
Egress, interior contact the 6 th at 8h 18m 26.9s - 54° 45.6' +22° 30.0' +216° 55.0'
Egress, exterior contact the 6 th at 8h 36m 33.0s - 50° 12.8' +22° 29.8' +219° 34.7'

Durations of the geocentric phases

  • Duration of the general transit : 6h 34m 35.78s.
  • Duration of the transit of the shadow : 5h 58m 23.48s.
  • Least geocentric angular distance : 9' 30.396"

Map

Map of visibility of the transit - Mercator projection.


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URL: http://www.imcce.fr/ephem/passage_eng/html_passage/VenusP1761.html
Last update : March 22nd, 2004.