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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 86371.61s
Longitudes are counted positively towards West and negatively towards East.

Conjunction on -2970/11/17 at 6h 42m 8.41s.
Geocentric longitude of Venus	212° 54' 27.061".
Geocentric latitude of Venus	+0° 0' 56.41".
Geocentric longitude of the Sun	212° 54' 27.061".
Geocentric latitude of the Sun	+0° 0' 39.95".
Equatorial parallax of the Sun	8.95".
Equatorial parallax of Venus	33.22".
Semi-diameter true of the Sun	16' 17.2".
Semi-diameter true of Venus	31.52".

Phases	Date and instant in UTC	Position of the contacts		Venus being in the Zenith in
		Longitude	Latitude	Longitude	Latitude
Ingress, exterior contact	the 17 th at 2h 32m 33.0s	+122° 25.9'	-27° 59.1'	-141° 4.2'	-12° 50.5'
Ingress, interior contact	the 17 th at 2h 47m 44.9s	+126° 14.4'	-27° 55.4'	-137° 15.3'	-12° 50.2'
Ingress, contact of the axe	the 17 th at 6h 37m 11.1s	-166° 47.6'	+12° 24.0'	- 79° 39.5'	-12° 45.9'
Least angular distance	the 17 th at 6h 41m 31.5s	- 99° 41.4'	+24° 3.7'	- 78° 34.1'	-12° 45.8'
Egress, contact of the axe	the 17 th at 6h 45m 50.6s	- 21° 20.5'	+67° 51.6'	- 77° 29.1'	-12° 45.7'
Egress, interior contact	the 17 th at 10h 35m 19.1s	+ 62° 19.0'	+29° 39.3'	- 19° 52.8'	-12° 41.3'
Egress, exterior contact	the 17 th at 10h 50m 30.9s	+ 66° 7.5'	+29° 35.6'	- 16° 3.9'	-12° 41.0'

Durations of the general phases

• Duration of the general transit : 8h 17m 57.91s.
• Duration of the transit inside the shadow : 7h 47m 34.19s.
• Duration of the central transit : 0h 8m 39.56s.

Parameters of the shadow and penumbra cones and minimum elongation

• Semi-diameter of the shadow cone : 38.98 R
• Geocentric distance of the edge of the shadow : -38.31 R
• Geocentric distance of the edge of the penumbra : -40.91 R
• Semi-diameter of the cone of penombra : 41.58 R
• Least topocentric distance : 0' 0.000"

Geocentric phases	Date and instant in UTC	Venus being in the Zenith in		Position Angle P
		Longitude	Latitude
Ingress, exterior contact	the 17 th at 2h 38m 23.7s	-139° 36.1'	-12° 50.4'	+118° 34.1'
Ingress, interior contact	the 17 th at 2h 53m 35.6s	-135° 47.2'	-12° 50.1'	+118° 30.2'
Least angular distance	the 17 th at 6h 41m 31.6s	- 78° 34.1'	-12° 45.8'	---
Egress, interior contact	the 17 th at 10h 29m 28.4s	- 21° 20.8'	-12° 41.4'	+300° 21.9'
Egress, exterior contact	the 17 th at 10h 44m 40.3s	- 17° 31.9'	-12° 41.1'	+300° 18.0'

Durations of the geocentric phases

• Duration of the general transit : 8h 6m 16.54s.
• Duration of the transit of the shadow : 7h 35m 52.81s.
• Least geocentric angular distance : 0' 16.255"

URL: http://www.imcce.fr/ephem/passage_eng/html_passage/VenusN2970.html Last update : March 4th, 2004.