What is the perihelion and aphelion of Mercury?
Orbital parameters
Mercury | Ratio (Mercury/Earth) | |
---|---|---|
Perihelion (106 km) | 46.002 | 0.313 |
Aphelion (106 km) | 69.817 | 0.459 |
Synodic period (days) | 115.88 | – |
Mean orbital velocity (km/s) | 47.36 | 1.590 |
What are the perihelion and aphelion speeds of Mercury?
Mercury;s perihelion speed = 69.8 km’s and aphelion speed is 46.0 km/s. Earth’s perihelion = 147.1 million km and aphelion = 152.1 million km.
What is perihelion shift of Mercury’s orbit?
It is shown that the average perihelion shift of the orbit of Mercury, calculated in the framework of the planar limited problem, is 556.5 arc seconds per century and coincides with the observed one with a relative accuracy of 2.5%.
What is Mercury’s perihelion?
When at “perihelion” (the orbital point where a planet is closest to the Sun), Mercury is about 46.0 million km from the Sun and at “aphelion” (the orbital point farthest from the Sun), it is at a distance of 69.8 million km.
What are the phases of Mercury?
The two inferior planets, Mercury and Venus, which have orbits that are smaller than the Earth’s, exhibit the full range of phases as does the Moon, when seen through a telescope. Their phases are “full” when they are at superior conjunction, on the far side of the Sun as seen from the Earth.
How do you calculate perihelion and aphelion distances?
The perihelion distance P=a(1−e) and the aphelion distance A=a(1+e) where e=0.875 is the eccentricity. This gives a perihelion distance of 2.375AU and an aphelion distance of 35.625AU.
What are the perihelion and aphelion distances of this planet?
Perihelion and Aphelion in 2021 At perihelion, Earth was 91,399,454 miles away from the Sun; at aphelion, it will be 94,510,886 miles away from the Sun.
What is Mercury’s perihelion distance in AU?
Mercury (planet)
Designations | |
---|---|
Epoch J2000 | |
Aphelion | 0.466697 AU 69,816,900 km |
Perihelion | 0.307499 AU 46,001,200 km |
Semi-major axis | 0.387098 AU 57,909,050 km |