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Due to the proximity of Mercury to the Sun, Mercury on average receives an energy flux from the Sun that is about 7 times the solar constant, but may reach nearly 11 times at maximum and about 4.5 times at minimum. The Sun will have an angular diameter of 1.733 to 1.142°.
Consequently, one solar day (sunrise to sunrise) on Mercury lasts for around 176 Earth days: twice the planet's sidereal year. This means that one side of Mercury will remain in sunlight for one Mercurian year of 88 Earth days; while during the next orbit, that side will be in darkness all the time until the next sunrise after another 88 Earth ...
Some observations show that Mercury is surrounded by a hot corona of calcium atoms with temperature between 12,000 and 20,000 K. [9] In the early 2000s, a simulation of Mercury's Na exosphere and its temporal variation was conducted to identify the source process that supplied crustal species to the exosphere. Processes like; evaporation ...
A little bit about the timing of these events: On April 1, Mercury turned retrograde in combative Aries for three weeks. (Sadly, that’s not an April Fool’s Day prank).
As each day is divided into 24 hours, the first hour of a day is ruled by the planet three places down in the Chaldean order from the planet ruling the first hour of the preceding day; [2] i.e. a day with its first hour ruled by the Sun ("Sunday") is followed by a day with its first hour ruled by the Moon ("Monday"), followed by Mars ("Tuesday ...
During Mercury retrograde—which happens about three times per year—Mercury is as close to the Earth as it gets during its cycle around the sun. This puts an exclamation point on all things ...
Ahead, an astrologer breaks down every time Mercury will be in retrograde in 2024. Mercury retrograde is known as a time of miscommunication and chaos. Ahead, an astrologer breaks down every time ...
A mean solar day (what we normally measure as a "day") is the average time between local solar noons ("average" since this varies slightly over a year). Earth makes one rotation around its axis each sidereal day; during that time it moves a short distance (about 1°) along its orbit around the Sun.