Mercury (Planet)

Image of Mercury
© NASA/JPL/MESSENGER
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From Seattle , Mercury will become visible at around 19:38 (PDT), 10° above your western horizon, as dusk fades to darkness. It will then sink towards the horizon, setting 1 hour and 26 minutes after the Sun at 20:45.

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Name Mercury
Object type Inferior planet
Current position
Computed for:18 March 2024
Right ascension:00h50m [2]
Declination:+06°38' [2]
Constellation:Pisces
Magnitude:-0.95 (V) [1]
Angular diameter:6.3 arcsec[2]
Distance:1.08 AU
8.95 lightmin [2]
Angular motion (speed):1.61 deg/day[2]
Angular motion (pos ang):59.5°
Orbital elements [2]
Semi-major axis:0.39 AU
Eccentricity:0.205631
Inclination:7.00°
Longitude ascending node:48.33°
Argument of perihelion:29.12°
Epoch of elements:01 January 2000
Mean Anomaly at epoch:174.79°
Absolute mag (H):-0.65 [1]
Slope parameter (n):2.00 [1]
Derived quantities
Perihelion:0.31 AU
Aphelion:0.47 AU
Orbital period:0.24 years
Sources
[1] Robin M. Green, Spherical Astronomy, 1985, ISBN 0-521-31779-7
[2] Explanatory Supplement to the Astronomical Almanac. 1992. K. P. Seidelmann, Ed., p.316
Visibility from Seattle

All times shown in Seattle local time.

Events
28 Feb 2024  –  Mercury at superior solar conjunction
17 Mar 2024  –  Mercury at perihelion
22 Mar 2024  –  Mercury at dichotomy
24 Mar 2024  –  Mercury at greatest elongation east
25 Mar 2024  –  Mercury at highest altitude in evening sky
11 Apr 2024  –  Mercury at inferior solar conjunction
30 Apr 2024  –  Mercury at aphelion
09 May 2024  –  Mercury at greatest elongation west
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Seattle

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47.61°N
122.33°W
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