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• Parameters at the instant of the conjunction in longitude.
• General phases.
• Geocentric phases.
• Back to the canon of the transits of Venus.

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 3207.33s
Longitudes are counted positively towards West and negatively towards East.

Conjunction on 2846/12/16 at 23h 28m 38.58s.
Geocentric longitude of Venus	265° 5' 19.150".
Geocentric latitude of Venus	+0° 7' 17.92".
Geocentric longitude of the Sun	265° 5' 19.150".
Geocentric latitude of the Sun	+0° 0' 0.29".
Equatorial parallax of the Sun	8.92".
Equatorial parallax of Venus	33.15".
Semi-diameter true of the Sun	16' 13.1".
Semi-diameter true of Venus	31.46".

Phases	Date and instant in UTC	Position of the contacts		Venus being in the Zenith in
		Longitude	Latitude	Longitude	Latitude
Ingress, exterior contact	the 16 th at 19h 24m 24.4s	+ 28° 4.0'	+12° 26.4'	+112° 12.8'	-23° 10.0'
Ingress, interior contact	the 16 th at 19h 41m 24.4s	+ 33° 2.5'	+14° 2.7'	+116° 29.0'	-23° 9.8'
Least angular distance	the 16 th at 23h 11m 46.2s	+142° 47.9'	+64° 18.6'	+169° 18.7'	-23° 7.3'
Egress, interior contact	the 17 th at 2h 42m 6.2s	- 65° 16.9'	+34° 19.1'	-137° 51.9'	-23° 4.8'
Egress, exterior contact	the 17 th at 2h 59m 6.2s	- 60° 2.7'	+32° 46.6'	-133° 35.7'	-23° 4.6'

Durations of the general phases

• Duration of the general transit : 7h 34m 41.87s.
• Duration of the transit inside the shadow : 7h 0m 41.73s.

Parameters of the shadow and penumbra cones and minimum elongation

• Semi-diameter of the shadow cone : 38.85 R
• Geocentric distance of the edge of the shadow : -21.03 R
• Geocentric distance of the edge of the penumbra : -23.62 R
• Semi-diameter of the cone of penombra : 41.45 R
• Least topocentric distance : 6' 47.931"

Geocentric phases	Date and instant in UTC	Venus being in the Zenith in		Position Angle P
		Longitude	Latitude
Ingress, exterior contact	the 16 th at 19h 30m 55.5s	+113° 51.0'	-23° 9.9'	+ 75° 52.1'
Ingress, interior contact	the 16 th at 19h 48m 1.6s	+118° 8.7'	-23° 9.7'	+ 74° 1.4'
Least angular distance	the 16 th at 23h 11m 45.5s	+169° 18.6'	-23° 7.3'	---
Egress, interior contact	the 17 th at 2h 35m 29.4s	-139° 31.6'	-23° 4.9'	+308° 27.3'
Egress, exterior contact	the 17 th at 2h 52m 35.4s	-135° 13.9'	-23° 4.7'	+306° 36.5'

Durations of the geocentric phases

• Duration of the general transit : 7h 21m 39.95s.
• Duration of the transit of the shadow : 6h 47m 27.83s.
• Least geocentric angular distance : 7' 12.100"

URL: http://www.imcce.fr/ephem/passage_eng/html_passage/VenusP2846.html Last update : March 4th, 2004.