Mercury
Mercury is the closest planet to the Sun.Mercury is one of four terrestrial planets in the Solar System, and is a rocky body like Earth. It is the smallest planet in the Solar System
1. Size
It has the diameter of 4,879 km which make it "smallest" planet of solar system.
2. Mass
It has mass of 3.30 x 10^23 kg (5.5% of Earth).Therefore, it has only 38% of gravity as compared to earth.
3. Second Hottest Planet
Instead of closest planet to sun, it is not the hottest planet, because it has no atmosphere(because of weak gravity) to regulate the temperature, therefore it has large variation in temperature during night(-170 degree Celsius) and day(430 degree Celsius).
4. Day and Year
A year in Mercury is 88 days, yet a Mercury day is 176 Earth days.
5.Second Densest Planet
After the Earth, Mercury is the second densest planet. Mercury is very dense because it is composed mainly of heavy metals and rock.
6.Most Cratered Planet
The surface of mercury is similar to that of the Moon, as unlike most planets, Mercury isn’t geologically active and cannot “self heal” from impacts with asteroids and comets.
Those Craters are caused by numerous encounters with asteroids and comets.
7. No Seasons
Mercury does not experience any seasons,because the axis of Mercury has the smallest tilt of all other planets, and this results in a lack of seasons on its surface.
8. Elliptical Orbit and theory of Relativity
Mass warps space showed by Einstein can be explained by orbit of mercury, it has most elliptical orbit in solar system, because of closeness of it to sun, where sun mass affects it.
9.Wrinkles
Mercury is not so beautiful planets because of wrinkles😊😊😊.The iron core of the planet cooled and contracted, the surface of the planet became wrinkled. Scientist have named these wrinkles, Lobate Scarps. These Scarps can be up to a mile high and hundreds of miles long
10. Transit of Mercury
When the planet Mercury passes directly between the Sun and a superior planet, becoming visible against the solar disk. During a transit, Mercury appears as a tiny black dot moving across the disk of the Sun. The next will occur on November 11, 2019, and then on November 13, 2032. A typical transit lasts several hours.
2. Mass
It has mass of 3.30 x 10^23 kg (5.5% of Earth).Therefore, it has only 38% of gravity as compared to earth.
3. Second Hottest Planet
Instead of closest planet to sun, it is not the hottest planet, because it has no atmosphere(because of weak gravity) to regulate the temperature, therefore it has large variation in temperature during night(-170 degree Celsius) and day(430 degree Celsius).
4. Day and Year
A year in Mercury is 88 days, yet a Mercury day is 176 Earth days.
5.Second Densest Planet
After the Earth, Mercury is the second densest planet. Mercury is very dense because it is composed mainly of heavy metals and rock.
6.Most Cratered Planet
The surface of mercury is similar to that of the Moon, as unlike most planets, Mercury isn’t geologically active and cannot “self heal” from impacts with asteroids and comets.
Those Craters are caused by numerous encounters with asteroids and comets.
7. No Seasons
Mercury does not experience any seasons,because the axis of Mercury has the smallest tilt of all other planets, and this results in a lack of seasons on its surface.
8. Elliptical Orbit and theory of Relativity
Mass warps space showed by Einstein can be explained by orbit of mercury, it has most elliptical orbit in solar system, because of closeness of it to sun, where sun mass affects it.
9.Wrinkles
Mercury is not so beautiful planets because of wrinkles😊😊😊.The iron core of the planet cooled and contracted, the surface of the planet became wrinkled. Scientist have named these wrinkles, Lobate Scarps. These Scarps can be up to a mile high and hundreds of miles long
10. Transit of Mercury
When the planet Mercury passes directly between the Sun and a superior planet, becoming visible against the solar disk. During a transit, Mercury appears as a tiny black dot moving across the disk of the Sun. The next will occur on November 11, 2019, and then on November 13, 2032. A typical transit lasts several hours.
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| Transit of mercury |
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