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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 33225.98s
Longitudes are counted positively towards West and negatively towards East.

Conjunction on -1277/11/22 at 0h 48m 2.97s.
Geocentric longitude of Venus	228° 55' 34.488".
Geocentric latitude of Venus	+0° 12' 58.74".
Geocentric longitude of the Sun	228° 55' 34.488".
Geocentric latitude of the Sun	+0° 0' 8.98".
Equatorial parallax of the Sun	8.95".
Equatorial parallax of Venus	33.35".
Semi-diameter true of the Sun	16' 17.2".
Semi-diameter true of Venus	31.64".

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 21h 29m 49.8s	+ 61° 51.2'	+21° 6.4'	+144° 22.6'	-17° 35.7'
Ingress, interior contact	the 21 st at 21h 53m 21.8s	+ 69° 16.0'	+25° 7.6'	+150° 17.1'	-17° 35.2'
Least angular distance	the 22 nd at 0h 18m 54.2s	+130° 6.1'	+59° 34.2'	-173° 10.5'	-17° 32.7'
Egress, interior contact	the 22 nd at 2h 44m 26.0s	- 99° 28.3'	+67° 57.5'	-136° 38.3'	-17° 30.2'
Egress, exterior contact	the 22 nd at 3h 7m 58.1s	- 85° 19.8'	+65° 17.4'	-130° 43.8'	-17° 29.7'

Durations of the general phases

• Duration of the general transit : 5h 38m 8.33s.
• Duration of the transit inside the shadow : 4h 51m 4.23s.

Parameters of the shadow and penumbra cones and minimum elongation

• Semi-diameter of the shadow cone : 38.76 R
• Geocentric distance of the edge of the shadow : -7.59 R
• Geocentric distance of the edge of the penumbra : -10.19 R
• Semi-diameter of the cone of penombra : 41.35 R
• Least topocentric distance : 12' 15.920"

Geocentric phases	Date and instant in UTC	Venus being in the Zenith in		Position Angle P
		Longitude	Latitude
Ingress, exterior contact	the 21 st at 21h 38m 39.6s	+146° 35.6'	-17° 35.5'	+ 66° 22.5'
Ingress, interior contact	the 21 st at 22h 3m 3.3s	+152° 43.1'	-17° 35.1'	+ 61° 45.1'
Least angular distance	the 22 nd at 0h 18m 53.7s	-173° 10.6'	-17° 32.7'	---
Egress, interior contact	the 22 nd at 2h 34m 45.8s	-139° 4.0'	-17° 30.3'	+348° 41.8'
Egress, exterior contact	the 22 nd at 2h 59m 9.5s	-132° 56.5'	-17° 29.9'	+344° 4.4'

Durations of the geocentric phases

• Duration of the general transit : 5h 20m 29.92s.
• Duration of the transit of the shadow : 4h 31m 42.50s.
• Least geocentric angular distance : 12' 40.255"

URL: http://www.imcce.fr/ephem/passage_eng/html_passage/VenusN1277.html Last update : March 4th, 2004.