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2174 May the 8th



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 336.61s
Longitudes are counted positively towards West and negatively towards East.

Parameters at the instant of conjunction in longitude


Conjunction on 2174/5/8 at 2h 44m 52.59s.
Geocentric longitude of Mercury 47° 44' 43.372".
Geocentric latitude of Mercury +0° 15' 39.94".
Geocentric longitude of the Sun 47° 44' 43.372".
Geocentric latitude of the Sun +0° 0' 0.63".
Equatorial parallax of the Sun 8.72".
Equatorial parallax of Mercury 15.70".
True semi-diameter of the Sun 15' 51.5".
True semi-diameter of Mercury 6.01".


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 8 th at 2h 18m 9.8s + 4° 19.9' +70° 37.9' -144° 35.5' +17° 22.0'
Ingress, interior contact the 8 th at 2h 29m 25.7s + 0° 43.8' +69° 13.1' -141° 45.8' +17° 21.8'
Least angular distance the 8 th at 3h 26m 29.0s - 7° 26.4' +59° 1.9' -127° 26.3' +17° 20.8'
Egress, interior contact the 8 th at 4h 22m 42.9s - 4° 44.6' +46° 59.7' -113° 19.3' +17° 19.7'
Egress, exterior contact the 8 th at 4h 33m 58.7s - 3° 30.1' +44° 36.3' -110° 29.6' +17° 19.5'

Durations of the general phases

  • Duration of the general transit : 2h 15m 48.91s.
  • Duration of the transit inside the shadow : 1h 53m 17.22s.

Parameters of the shadow and penumbra cones and minimum elongation

  • Semi-diameter of the shadow cone : 135.31 R
  • Geocentric distance of the edge of the shadow : -3.02 R
  • Geocentric distance of the edge of the penumbra : -4.74 R
  • Semi-diameter of the cone of penombra : 137.03 R
  • Least topocentric distance : 15' 17.385"

Geocentric phases

Geocentric phases Date and instant in UTC Mercury being in the Zenith in Position Angle P
LongitudeLatitude
Ingress, exterior contact the 8 th at 2h 24m 27.5s -143° 0.7' +17° 21.9' +348° 39.3'
Ingress, interior contact the 8 th at 2h 37m 2.8s -139° 51.0' +17° 21.7' +345° 40.6'
Least angular distance the 8 th at 3h 26m 5.3s -127° 32.3' +17° 20.8' ---
Egress, interior contact the 8 th at 4h 15m 5.0s -115° 14.2' +17° 19.8' +321° 28.6'
Egress, exterior contact the 8 th at 4h 27m 40.4s -112° 4.6' +17° 19.6' +318° 29.9'

Durations of the geocentric phases

  • Duration of the general transit : 2h 3m 12.87s.
  • Duration of the transit of the shadow : 1h 38m 2.13s.
  • Least geocentric angular distance : 15' 24.353"


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URL: http://www.imcce.fr/ephem/passage_eng/html_passage/MercureP2174.html
Last update : March 22nd, 2004.