The fair planet Mercury 

Mercury - Lord of Speech
Full and Dry of Nature

Planet in Signs: Sun | Mercury | Venus | Moon | Mars
Jupiter | Saturn | Uranus | Neptune | Pluto
Planet in Houses: Sun | Mercury | Venus | Moon | Mars
Jupiter | Saturn | Uranus | Neptune | Pluto
Planet Aspects: Sun | Mercury | Venus | Moon | Mars
Jupiter | Saturn | Uranus | Neptune | Pluto


m ercury in Your Horoscope
Mercury in your horoscope shows the focus of your mentality as the instrument and reflection of the ego-force. Mercury is in fact never far removed in space from the sun—never more than 28° ahead or behind. The Sun's rate of motion through the "belt of space" (arbitrarily called the zodiac) is very constant—approximately one degree per day. When Mercury's motion is slightly faster than the Sun's, it moves ahead, and when it slows down a little, it falls behind the Sun.

When any planet's forward motion reduces to less than that of the earth, the planet (by comparison to the earth) is said to be in RETROGRADE motion. Astrologers are divided as to the significance (if any) that retrograde motion has on the planet's astrological significance.

In the case of Mercury it is generally advisable to note when this planet goes retrograde, which lasts from two to three weeks at a time and is shown in the current year ephemeris. All communication at that time tends to get fouled up, and individual mental efforts frequently have to be done over or later revised. One should never be too inflexible in any message transaction while Mercury is retrograde.

Mercury, as messenger, receives sensory stimuli, sorts them communicates them to the ego-center, receives back its instructions, and communicates these instructions to other centers. The function of Mercury should be distinguished from the content of thought, the patterns of thinking and the style of communication, all of which are shown by the condition of the third house. It should always be kept in mind that Mercury is only the ego's messenger, which reflects what it sees. It does not originate thought.
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p lanet Profile

Mass (kg) 3.3 x 1023
Diameter (km) 4879.4
Mean density (kg/m3) 5420
Escape velocity (m/s) 4300
Average distance from Sun 0.387 AU (57,909,175 km)
Rotation period (length of day in Earth days) 58.65
Revolution period (length of year in Earth days) 87.97
Obliquity (tilt of axis degrees) 0
Orbit inclination (degrees) 7
Orbit eccentricity (deviation from circular) 0.206
Mean surface temperature (K) 452
Maximum surface temperature (K) 700
Minimum surface temperature (K) 100
Visual geometric albedo (reflectivity) 0.12
Largest known surface feature Caloris Basin (1350 km diameter)
Atmospheric components trace amounts of hydrogen and helium
Surface materials basaltic and anorthositic rocks and regolith

Mosaic of Mercury
The photomosaic of the planet Mercury was assembled from individual high-resolution images taken by Mariner 10 shortly before closest approach in 1974. Crater Kuiper, named after astronomer Gerard P. Kuiper, can be seen just below the center of the planet's illuminated side. The landscape is dominated by large craters and basins with extensive plains between craters.

Mercury Close Up
The small, bright halo crater is 10 km (6 mi) in diameter. The prominent crater, which has a central peak, is 30 km (19 mi) across. The darker, lightly cratered area may be an ancient lava flow. Mercury's surface is similar to that of Earth's moon, where a history of heavy cratering is followed by volcanic filling.

Hills of Mercury
Weird terrain best describes this hilly, lineated region of Mercury. Scientists note that this area is at the antipodal point to the large Caloris basin. The area covered is about 800 km (497 mi) on a side.

Southwest Mercury
The best southwest quadrant of Mercury is taken March 29, 1974, by the Mariner 10 spacecraft. The picture was taken four hours before the time of closest approach when Mariner was 198,000 km (122,760 mi) from the planet. The largest craters seen in this picture are about 100 km (62 mi) in diameter.

Caloris Basin
This Caloris Basin, which is thought to be similar to the large circular basins found on the moon. Probably formed by a giant impact early in Mercury's history, this basin was subsequently filled by lava flows. The nature of the wrinkle ridges on its floor is arguable: some scientists claim tectonics while others suggest they are due to volcanic flows escaping from fractures.

   
i n mythology :
h ermes in Greek Mythology
m ercury in Roman mythology
, the god Hermes was called Mercury.

"Hermes was the son of Zeus and Maia. (According to Hesiod) He presided over commerce, wrestling, and other gymnastic exercises, even over thieving, and everything, in short, which required skill and dexterity. He was the messenger of Zeus, and wore a winged cap and winged shoes. He bore in his hand a rod entwined with two serpents, called the caduceus.

Hermes is said to have invented the lyre. He found, one day, a tortoise, of which he took the shell, made holes in the opposite edges of it, and drew cords of linen through them, and the instrument was complete. The cords were nine, in honor of the nine Muses. Hermes gave the lyre to Apollo, and received from him in exchange the caduceus."
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