1740 May the 2nd and the 3rd
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 10.87s
Longitudes are counted positively towards West and negatively towards East.
 Parameters at the instant of conjunction in longitude
| Conjunction on 1740/5/2 at 22h 21m 40.25s. |
|---|
| Geocentric longitude of Mercury |
42° 42' 19.018". |
| Geocentric latitude of Mercury |
+0° 15' 3.64". |
| Geocentric longitude of the Sun |
42° 42' 19.018". |
| Geocentric latitude of the Sun |
+0° 0' 0.36". |
| Equatorial parallax of the Sun |
8.71". |
| Equatorial parallax of Mercury |
15.73". |
| True semi-diameter of the Sun |
15' 50.9". |
| True semi-diameter of Mercury |
6.02". |
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 2 nd at 21h 29m 6.4s |
- 55° 48.1' |
+73° 50.4' |
+143° 9.2' |
+15° 55.7' |
| Ingress, interior contact |
the 2 nd at 21h 37m 7.5s |
- 59° 39.4' |
+73° 11.7' |
+145° 10.0' |
+15° 55.6' |
| Least angular distance |
the 2 nd at 23h 1m 57.4s |
- 77° 7.2' |
+58° 27.7' |
+166° 27.8' |
+15° 53.9' |
| Egress, interior contact |
the 3 rd at 0h 26m 2.7s |
- 69° 40.5' |
+39° 32.0' |
-172° 25.6' |
+15° 52.3' |
| Egress, exterior contact |
the 3 rd at 0h 34m 3.8s |
- 68° 27.7' |
+37° 50.8' |
-170° 24.8' |
+15° 52.2' |
Durations of the general phases
- Duration of the general transit : 3h 4m 57.39s.
- Duration of the transit inside the shadow : 2h 48m 55.21s.
Parameters of the shadow and penumbra cones and minimum elongation
- Semi-diameter of the shadow cone : 134.53 R
- Geocentric distance of the edge of the shadow : -7.97 R
- Geocentric distance of the edge of the penumbra : -9.69 R
- Semi-diameter of the cone of penombra : 136.25 R
- Least topocentric distance : 14' 41.823"
Geocentric phases
| Geocentric phases |
Date and instant in UTC |
Mercury being in the Zenith in |
Position Angle P |
|---|
| Longitude | Latitude |
|---|
| Ingress, exterior contact |
the 2 nd at 21h 33m 41.4s |
+144° 18.2' |
+15° 55.6' |
+353° 46.7' |
| Ingress, interior contact |
the 2 nd at 21h 42m 6.3s |
+146° 25.0' |
+15° 55.5' |
+351° 52.3' |
| Least angular distance |
the 2 nd at 23h 1m 36.0s |
+166° 22.4' |
+15° 53.9' |
--- |
| Egress, interior contact |
the 3 rd at 0h 21m 3.1s |
-173° 40.8' |
+15° 52.4' |
+312° 17.9' |
| Egress, exterior contact |
the 3 rd at 0h 29m 28.0s |
-171° 34.1' |
+15° 52.2' |
+310° 23.4' |
Durations of the geocentric phases
- Duration of the general transit : 2h 55m 46.57s.
- Duration of the transit of the shadow : 2h 38m 56.79s.
- Least geocentric angular distance : 14' 48.827"
Send your suggestion to the author of the notes :
URL: http://www.imcce.fr/ephem/passage_eng/html_passage/MercureP1740.html
Last update : March 22nd, 2004.
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