Basic Astronomy

Mercury


Mercury is the 1st planet from the Sun. It is also the smallest amongst the eight planets in the Solar System.

Mercury

The planets in the Solar System are given the names of Roman Gods or their attendants. Mercury is named after the Roman god Mercury who is the messenger to the gods.


Equatorial diameter
(Earth diameter)
Mass
(Earth mass)
Orbital radius
(AU)
Orbital period
(years)
Inclination
to Sun's
equator
(degree)
Orbital eccentricityRotation period
(days)
No. of
confirmed moons
0.3820.060.390.243.380.20658.640





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