-912 May the 21st
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 25091.31s
Longitudes are counted positively towards West and negatively towards East.
 Parameters at the instant of conjunction in longitude
| Conjunction on -912/5/21 at 9h 8m 15.81s. |
|---|
| Geocentric longitude of Venus |
50° 21' 58.442". |
| Geocentric latitude of Venus |
+0° 3' 38.45". |
| Geocentric longitude of the Sun |
50° 21' 58.442". |
| Geocentric latitude of the Sun |
-0° 0' 6.04". |
| Equatorial parallax of the Sun |
8.64". |
| Equatorial parallax of Venus |
30.33". |
| True semi-diameter of the Sun |
15' 42.8". |
| True semi-diameter of Venus |
28.78". |
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 5h 13m 26.6s |
+157° 24.1' |
+35° 11.2' |
- 99° 40.7' |
+18° 14.0' |
| Ingress, interior contact |
the 21 st at 5h 28m 17.6s |
+160° 43.6' |
+35° 55.9' |
- 95° 57.0' |
+18° 13.8' |
| Least angular distance |
the 21 st at 9h 16m 30.4s |
+ 86° 12.7' |
+60° 16.7' |
- 38° 39.0' |
+18° 10.0' |
| Egress, interior contact |
the 21 st at 13h 4m 43.5s |
+105° 0.3' |
- 9° 51.4' |
+ 18° 39.0' |
+18° 6.3' |
| Egress, exterior contact |
the 21 st at 13h 19m 34.6s |
+108° 27.0' |
-10° 37.5' |
+ 22° 22.7' |
+18° 6.0' |
Durations of the general phases
- Duration of the general transit : 8h 6m 7.97s.
- Duration of the transit inside the shadow : 7h 36m 25.88s.
Parameters of the shadow and penumbra cones and minimum elongation
- Semi-diameter of the shadow cone : 42.14 R
- Geocentric distance of the edge of the shadow : -31.90 R
- Geocentric distance of the edge of the penumbra : -34.55 R
- Semi-diameter of the cone of penombra : 44.79 R
- Least topocentric distance : 3' 20.438"
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 5h 19m 1.6s |
- 98° 16.6' |
+18° 13.9' |
+ 52° 35.0' |
| Ingress, interior contact |
the 21 st at 5h 33m 53.8s |
- 94° 32.6' |
+18° 13.7' |
+ 51° 44.3' |
| Least angular distance |
the 21 st at 9h 16m 30.4s |
- 38° 39.1' |
+18° 10.0' |
--- |
| Egress, interior contact |
the 21 st at 12h 59m 6.9s |
+ 17° 14.5' |
+18° 6.4' |
+260° 0.7' |
| Egress, exterior contact |
the 21 st at 13h 13m 59.2s |
+ 20° 58.5' |
+18° 6.1' |
+259° 10.1' |
Durations of the geocentric phases
- Duration of the general transit : 7h 54m 57.51s.
- Duration of the transit of the shadow : 7h 25m 13.10s.
- Least geocentric angular distance : 3' 42.074"
Send your suggestion to the author of the notes :
URL: http://www.imcce.fr/ephem/passage_eng/html_passage/VenusN912.html
Last update : March 22nd, 2004.
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