American Heritage® Dictionary of the English Language, Fourth Edition
- n. The larger and inner of the two planetary satellites of Mars.
Century Dictionary and Cyclopedia
- n. The inner of the two satellites of the planet Mars, discovered by Asaph Hall at Washington, in August, 1877. This extraordinary body revolves in the plane of the equator of Mars, at a distance of only about 3, 700 miles from the surface of the planet, but as it is probably only about five and a half miles in diameter, it would appear only one sixth of the apparent diameter of our moon at the zenith, and on the horizon, owing to the enormous parallax, only about one fourteenth of the same. At the equinoxes it is in eclipse about one fifth of the time, or double that proportion of the time between sunset and sunrise. At the solstices it does not suffer eclipse. It revolves about its primary in 7 hours, 39 minutes, and 14 seconds, and as Mars revolves on its axis in 24 hours, 37 minutes, and 22. 7 seconds, it follows that the satellite appears to an observer on Mars to rise in the west and set in the east, its return to his meridian occurring in 11 hours, 6 minutes, and 23 seconds, but, owing to its close proximity, its velocity will appear to be much greater. At a station on the equator of Mars (where the satellite always passes through the zenith), it will, out of its 11 hours and 6 minutes of period, pass only 3 hours and 20 minutes above the horizon against 7 hours anil 46 minutes below.
- n. Greek mythology A son of Ares (Mars). Also the Greek god of fear.
- n. astronomy The innermost natural satellite of Mars.
- n. the larger of the two satellites of Mars
- From Ancient Greek φόβος (phobos, "fear"). (Wiktionary)
- Greek, fear, deity who personifies fear, from phobos, fear; see -phobe. (American Heritage® Dictionary of the English Language, Fourth Edition)
“Stickney Crater, the largest crater on the martian moon Phobos, is named for Chloe Angeline Stickney Hall, mathematician.”
“The above photo of Phobos is just breath taking, to see the all the amazing detail just click on the image to view it as full size.”
““Phobos is of great interest because it may be rich in water ice and carbon-rich materials,” said Alfred McEwen, HiRISE principal investigator at the Lunar and Planetary Laboratory at the University of Arizona, Tucson.””
“In 2011 Russia will send a mission called Phobos–Grunt meaning Phobos Soil to land on Phobos, and an experiment will collect a soil sample and return it to Earth for analysis.”
“Also called Phobos, and the Mad Moon in certain phases.”
“This machine is called Phobos and, depending upon the configuration, can run around $8,000 and above for the top end model.”
“Phobos, which is believed to be a captured asteroid, will not stay pinned to Mars forever.”
“Two small moons (hardly larger than the city of Paris) revolve rapidly round Mars; they are called Phobos and Deimos.”
“In 2011 Russia will send a mission called Phobos-Grunt (meaning Phobos Soil) to land on the martian moon, collect a soil sample and return it to Earth for analysis.”
“Phobos 2 arrived safely at Mars in January 1989 and entered into and orbit around Mars as the first step at its destination towards its ultimate goal: to transfer to an orbit that the would make it fly almost in tandem with the Martian moonlet called Phobos (hence the spacecrafts name) and explore the moonlet with highly sophisticated equipment that included two packages of instruments to be placed on the moonlet's surface.”
These user-created lists contain the word ‘Phobos’.
A list of mythological gods that people have worshipped throughout history (includes primordial dieties).
They can be animate or inanimate (male or female). 2 syllables
Looking for tweets for Phobos.