1782 November the 12th
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 16.06s
Longitudes are counted positively towards West and negatively towards East.
 Parameters at the instant of conjunction in longitude
| Conjunction on 1782/11/12 at 15h 39m 12.81s. |
|---|
| Geocentric longitude of Mercury |
230° 26' 27.356". |
| Geocentric latitude of Mercury |
+0° 15' 54.17". |
| Geocentric longitude of the Sun |
230° 26' 27.356". |
| Geocentric latitude of the Sun |
-0° 0' 0.32". |
| Equatorial parallax of the Sun |
8.89". |
| Equatorial parallax of Mercury |
12.99". |
| True semi-diameter of the Sun |
16' 10.5". |
| True semi-diameter of Mercury |
4.97". |
General phases
| Phases |
Date and instant
in UTC |
Position of the contacts |
Mercury being in the Zenith in |
|---|
| Longitude | Latitude | Longitude | Latitude |
|---|
| Ingress, exterior contact |
the 12 th at 14h 32m 32.7s |
- 26° 24.7' |
+47° 28.9' |
+ 41° 50.4' |
-17° 39.5' |
| Ingress, interior contact |
the 12 th at 14h 39m 20.6s |
- 23° 4.0' |
+49° 30.8' |
+ 43° 33.0' |
-17° 39.3' |
| Least angular distance |
the 12 th at 15h 16m 0.5s |
- 1° 11.9' |
+60° 18.1' |
+ 52° 46.4' |
-17° 38.2' |
| Egress, interior contact |
the 12 th at 15h 52m 58.2s |
+ 31° 34.4' |
+68° 47.4' |
+ 62° 4.3' |
-17° 37.2' |
| Egress, exterior contact |
the 12 th at 15h 59m 46.1s |
+ 39° 6.4' |
+69° 47.9' |
+ 63° 46.9' |
-17° 37.0' |
Durations of the general phases
- Duration of the general transit : 1h 27m 13.36s.
- Duration of the transit inside the shadow : 1h 13m 37.54s.
Parameters of the shadow and penumbra cones and minimum elongation
- Semi-diameter of the shadow cone : 235.51 R
- Geocentric distance of the edge of the shadow : -5.12 R
- Geocentric distance of the edge of the penumbra : -7.55 R
- Semi-diameter of the cone of penombra : 237.93 R
- Least topocentric distance : 15' 40.478"
Geocentric phases
| Geocentric phases |
Date and instant in UTC |
Mercury being in the Zenith in |
Position Angle P |
|---|
| Longitude | Latitude |
|---|
| Ingress, exterior contact |
the 12 th at 14h 35m 12.9s |
+ 42° 30.7' |
-17° 39.4' |
+ 38° 19.8' |
| Ingress, interior contact |
the 12 th at 14h 42m 30.9s |
+ 44° 20.9' |
-17° 39.2' |
+ 35° 49.3' |
| Least angular distance |
the 12 th at 15h 16m 8.3s |
+ 52° 48.4' |
-17° 38.2' |
--- |
| Egress, interior contact |
the 12 th at 15h 49m 48.1s |
+ 61° 16.5' |
-17° 37.3' |
+ 11° 47.4' |
| Egress, exterior contact |
the 12 th at 15h 57m 6.1s |
+ 63° 6.7' |
-17° 37.1' |
+ 9° 17.0' |
Durations of the geocentric phases
- Duration of the general transit : 1h 21m 53.19s.
- Duration of the transit of the shadow : 1h 7m 17.23s.
- Least geocentric angular distance : 15' 44.565"
Send your suggestion to the author of the notes :
URL: http://www.imcce.fr/ephem/passage_eng/html_passage/MercureP1782.html
Last update : March 22nd, 2004.
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