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1874 December the 9th



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 -2.92s
Longitudes are counted positively towards West and negatively towards East.

Parameters at the instant of conjunction in longitude


Conjunction on 1874/12/9 at 4h 39m 48.21s.
Geocentric longitude of Venus 256° 59' 33.325".
Geocentric latitude of Venus +0° 14' 0.12".
Geocentric longitude of the Sun 256° 59' 33.325".
Geocentric latitude of the Sun -0° 0' 0.44".
Equatorial parallax of the Sun 8.93".
Equatorial parallax of Venus 33.27".
True semi-diameter of the Sun 16' 14.6".
True semi-diameter of Venus 31.57".


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 9 th at 1h 38m 51.3s +134° 12.0' +35° 28.0' -153° 37.3' -22° 37.7'
Ingress, interior contact the 9 th at 2h 6m 33.4s +144° 31.4' +40° 12.8' -146° 39.9' -22° 37.4'
Least angular distance the 9 th at 4h 7m 26.3s -150° 4.0' +63° 2.5' -116° 18.6' -22° 35.8'
Egress, interior contact the 9 th at 6h 8m 16.8s - 49° 24.8' +62° 12.2' - 85° 57.8' -22° 34.2'
Egress, exterior contact the 9 th at 6h 35m 59.0s - 33° 42.2' +58° 54.5' - 79° 0.4' -22° 33.8'

Durations of the general phases

  • Duration of the general transit : 4h 57m 7.72s.
  • Duration of the transit inside the shadow : 4h 1m 43.38s.

Parameters of the shadow and penumbra cones and minimum elongation

  • Semi-diameter of the shadow cone : 38.75 R
  • Geocentric distance of the edge of the shadow : -4.65 R
  • Geocentric distance of the edge of the penumbra : -7.24 R
  • Semi-diameter of the cone of penombra : 41.34 R
  • Least topocentric distance : 13' 25.676"

Geocentric phases

Geocentric phases Date and instant in UTC Venus being in the Zenith in Position Angle P
LongitudeLatitude
Ingress, exterior contact the 9 th at 1h 49m 3.9s -151° 3.5' -22° 37.6' + 49° 11.9'
Ingress, interior contact the 9 th at 2h 18m 30.8s -143° 39.8' -22° 37.2' + 43° 6.3'
Least angular distance the 9 th at 4h 7m 26.1s -116° 18.6' -22° 35.8' ---
Egress, interior contact the 9 th at 5h 56m 20.3s - 88° 57.8' -22° 34.3' +346° 18.7'
Egress, exterior contact the 9 th at 6h 25m 47.2s - 81° 34.1' -22° 33.9' +340° 13.1'

Durations of the geocentric phases

  • Duration of the general transit : 4h 36m 43.28s.
  • Duration of the transit of the shadow : 3h 37m 49.50s.
  • Least geocentric angular distance : 13' 49.949"

Map

Map of visibility of the transit - Mercator projection.


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URL: http://www.imcce.fr/ephem/passage_eng/html_passage/VenusP1874.html
Last update : March 22nd, 2004.