-791 November the 21st and the 22nd
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 22640.03s
Longitudes are counted positively towards West and negatively towards East.
 Parameters at the instant of conjunction in longitude
| Conjunction on -791/11/22 at 1h 8m 59.50s. |
|---|
| Geocentric longitude of Venus |
232° 48' 52.787". |
| Geocentric latitude of Venus |
+0° 9' 25.75". |
| Geocentric longitude of the Sun |
232° 48' 52.787". |
| Geocentric latitude of the Sun |
+0° 0' 5.71". |
| Equatorial parallax of the Sun |
8.95". |
| Equatorial parallax of Venus |
33.37". |
| True semi-diameter of the Sun |
16' 17.0". |
| True semi-diameter of Venus |
31.67". |
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 21 st at 21h 16m 34.4s |
+ 54° 20.1' |
+ 7° 55.2' |
+141° 13.4' |
-18° 39.6' |
| Ingress, interior contact |
the 21 st at 21h 34m 57.7s |
+ 59° 43.3' |
+10° 12.8' |
+145° 50.4' |
-18° 39.3' |
| Least angular distance |
the 22 nd at 0h 47m 41.7s |
+140° 24.2' |
+59° 58.9' |
-165° 46.3' |
-18° 36.0' |
| Egress, interior contact |
the 22 nd at 4h 0m 25.3s |
- 55° 42.5' |
+54° 4.1' |
-117° 23.0' |
-18° 32.8' |
| Egress, exterior contact |
the 22 nd at 4h 18m 48.6s |
- 48° 58.4' |
+52° 2.3' |
-112° 46.0' |
-18° 32.5' |
Durations of the general phases
- Duration of the general transit : 7h 2m 14.17s.
- Duration of the transit inside the shadow : 6h 25m 27.58s.
Parameters of the shadow and penumbra cones and minimum elongation
- Semi-diameter of the shadow cone : 38.71 R
- Geocentric distance of the edge of the shadow : -16.06 R
- Geocentric distance of the edge of the penumbra : -18.66 R
- Semi-diameter of the cone of penombra : 41.31 R
- Least topocentric distance : 8' 48.722"
Geocentric phases
| 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 23m 36.2s |
+142° 59.3' |
-18° 39.5' |
+ 80° 47.9' |
| Ingress, interior contact |
the 21 st at 21h 42m 11.9s |
+147° 39.4' |
-18° 39.2' |
+ 78° 14.2' |
| Least angular distance |
the 22 nd at 0h 47m 40.4s |
-165° 46.6' |
-18° 36.0' |
--- |
| Egress, interior contact |
the 22 nd at 3h 53m 11.9s |
-119° 11.8' |
-18° 32.9' |
+329° 42.9' |
| Egress, exterior contact |
the 22 nd at 4h 11m 47.7s |
-114° 31.7' |
-18° 32.6' |
+327° 9.2' |
Durations of the geocentric phases
- Duration of the general transit : 6h 48m 11.48s.
- Duration of the transit of the shadow : 6h 10m 59.95s.
- Least geocentric angular distance : 9' 13.080"
Send your suggestion to the author of the notes :
URL: http://www.imcce.fr/ephem/passage_eng/html_passage/VenusN791.html
Last update : March 22nd, 2004.
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