-2864 May the 19th and the 20th
- 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 82321.06s
Longitudes are counted positively towards West and negatively towards East.
Parameters at the instant of conjunction in longitude
| Conjunction on -2864/5/19 at 21h 51m 38.14s. | |
|---|---|
| Geocentric longitude of Venus | 34° 21' 28.882". |
| Geocentric latitude of Venus | -0° 5' 37.27". |
| Geocentric longitude of the Sun | 34° 21' 28.882". |
| Geocentric latitude of the Sun | -0° 0' 37.94". |
| Equatorial parallax of the Sun | 8.64". |
| Equatorial parallax of Venus | 30.48". |
| Semi-diameter true of the Sun | 15' 42.8". |
| Semi-diameter true of Venus | 28.92". |
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 19 th at 17h 42m 7.6s | - 4° 50.0' | +11° 4.4' | + 87° 24.4' | +13° 15.8' |
| Ingress, interior contact | the 19 th at 17h 57m 24.6s | - 0° 45.3' | + 9° 59.0' | + 91° 14.6' | +13° 15.6' |
| Least angular distance | the 19 th at 21h 40m 39.1s | + 80° 21.2' | -58° 51.0' | +147° 17.2' | +13° 11.5' |
| Egress, interior contact | the 20 th at 1h 23m 51.6s | - 80° 57.5' | -45° 30.8' | -156° 40.7' | +13° 7.5' |
| Egress, exterior contact | the 20 th at 1h 39m 8.6s | - 76° 38.0' | -44° 27.7' | -152° 50.5' | +13° 7.2' |
Durations of the general phases
- Duration of the general transit : 7h 57m 0.97s.
- Duration of the transit inside the shadow : 7h 26m 26.96s.
Parameters of the shadow and penumbra cones and minimum elongation
- Semi-diameter of the shadow cone : 41.85 R
- Geocentric distance of the edge of the shadow : 28.29 R
- Geocentric distance of the edge of the penumbra : 30.94 R
- Semi-diameter of the cone of penombra : 44.50 R
- Least topocentric distance : 4' 34.336"
Geocentric phases
| Geocentric phases | Date and instant in UTC | Venus being in the Zenith in | Position Angle P | |
|---|---|---|---|---|
| Longitude | Latitude | |||
| Ingress, exterior contact | the 19 th at 17h 47m 53.1s | + 88° 51.1' | +13° 15.7' | + 79° 5.9' |
| Ingress, interior contact | the 19 th at 18h 3m 12.4s | + 92° 41.9' | +13° 15.5' | + 80° 15.9' |
| Least angular distance | the 19 th at 21h 40m 40.1s | +147° 17.5' | +13° 11.5' | --- |
| Egress, interior contact | the 20 th at 1h 18m 4.3s | -158° 7.9' | +13° 7.6' | +222° 33.3' |
| Egress, exterior contact | the 20 th at 1h 33m 23.6s | -154° 17.1' | +13° 7.3' | +223° 43.4' |
Durations of the geocentric phases
- Duration of the general transit : 7h 45m 30.48s.
- Duration of the transit of the shadow : 7h 14m 51.98s.
- Least geocentric angular distance : 4' 56.118"
Send your suggestion to the author of the notes : Patrick Rocher, rocher@imcce.fr
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URL: http://www.imcce.fr/ephem/passage_eng/html_passage/VenusN2864.html
Last update : March 4th, 2004. |
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