Definition: kilometer (km): = 1000 meters = 0.62 miles.
Space Tragedies9 Planets in Nine DaysAstronomy 101
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Kilometer-square Area Radio Synthesis Telescope is a Chinese telescope project to which Five hundred meter Aperture Spherical Telescope is a forerunner....
limestone and is thus more closely related to The Burren
Burren ...
KILOMETER
1000 meters. A kilometer equals 0.6214 miles.
KILOPARSEC
1000 parsecs. A parsec equals 3.26 light years.
kilometer per second
The unit of speed in astronomy. One kilometer per second is 2237 miles per hour - five times the speed of an airplane.
kiloparsec ...
kilometer (km)
One kilometer is equivalent to 1,000 meters or 0.62 miles.
kiloparsec
A distance equal to 1000 parsecs.
Kilometer
abbreviated km. 1 km = 1000 meters = 105 cm = 0.62 mile.
Kiloparsec
a distance equal to 1000 parsecs.
kilometer A unit of distance equal to 0.6214 mile.
kinetic energy The energy of an object due to its motion.
L ...
Kilometer (km)
A measure of distance in the metric system equal to 1000 meters or about 0.6 of a mile.
Kinetic Energy ...
In kilometers the astronomical unit is about 150,000,000 km, 400 times the Moon's distance. All sorts of attempts were made to derive it, starting with the ancient Greek Aristarchus (sect. #9a) and they are discussed in sect #10a.
At 116 kilometers (72 miles) across, Epimetheus is slightly smaller than its companion moon, Janus (181 kilometers, or 113 miles across), which orbits at essentially the same distance from Saturn.
This 80-kilometer (50-mile) long trough (dubbed "gumby" by project scientists because of its resemblance to the pliable toy) is at least one kilometer deep.
kilometer = 0.6 mile.
Light pollution. The emission of stray light or glare from lighting fixtures in manners that counter the purpose of the light (which is to light what is below); ...
km -- Kilometers.
KSC -- Kennedy Space Center, Cape Canaveral, Florida.
KWF -- Keyword file of events listing DSN station activity. Also known as DKF, DSN keyword file.
It is 6, 371 kilometers to the center of the Earth. No one has been able to bore more than 10% of the way there.
Light travels very fast through space - almost 300,000 kilometers in a second!
What's that in "miles per hour"?
(see also) kilometer (km) = 1000 meters = 0.62 miles. Kowal, Charles T. 1940- American astronomer; discovered Leda and the comet-like object 2060 Chiron (aka 95 P/Chiron).
The 7 Year and 30 Kilometer Long Journey of Opportunity to June 1, 2011 ...
"We've chosen 700 kilometers because we're balancing several desires and several threats," Larson said. "The closer we get to the comet, the better our image resolution, so we want to get as close as we can.
Jets up to 16,000 kilometers in diameter, in the Sun's atmosphere.
Stratosphere
Level of the Earths atmosphere from about 11-64 kilometers above sea level.
40,000,000,000,000 kilometers
For this reason astronomical distances make use of the speed of light to scale huge distances to comparatively small time periods.
KM
Km is short for kilometer or kilometers.
KNOTS
Saturn's outermost ring, the subdivided "F" ring, has many visible knots or clumps of matter. These knots may be clumps of particulate ring material or tiny orbiting moons of Saturn.
084 X 10E13 kilometers = 206,265 astronomical units = 3.262 light years part 1. One of the constituents into which a thing may be divided. Applicable to a major assembly, subassembly, or the smallest individual piece in a given thing. 2.
The magnetosphere begins, by convention, at the maximum of the F layer at about 350 kilometers and extends to 10 or 15 earth radii to the boundary between the atmosphere and the interplanetary plasma.
5° and its distance of almost 150 million kilometers, its diameter is determined to be 1,392,000 kilometers. This is equal to 109 Earth diameters and almost 10 times the size of the largest planet, Jupiter.
While the star's metal content is close to solar, the velocity relative to the Sun is high, the two stars moving past each other at 90 kilometers per second, five times normal.
9 times solar and, from an uncertain projected equatorial rotation velocity of 33 kilometers per second, a rotation period of under 4.
(a) The present expansion rate of the universe, in units of kilometers per second per megaparsec. The larger the Hubble constant, the younger the universe. [C95] ...
It is much easier to say or write "two kilometers or 2 km" than "two thousand meters or 2,000 m". So generally, scientists use whatever units are easiest for whatever they are working with.
Hellas has a diameter 1,500 kilometers and a depth of 7, and Argyre is 800 kilometers across and 2 kilometers deep.
Structure of Mars: ...
Observations indicate that these objects are vaporizing and leaving behind clouds in the atmosphere that are 10-100 kilometers across and have high concentrations of water vapor.
The problem is that you may have to move several kilometers away -- you can only do this where you have lots of room: in the country, on the beach, or in any other location where you can see for miles.
9 hours, 2003 EL61 is the fastest rotating known body in our Solar System larger than 100 kilometers (60 miles) across (David Tytell, Sky and Telescope, April 20, 2006; and (Brown et al, 2005 preprint).
In scientific circles, the leading explanation for the explosion is the airburst of a meteoroid 6 to 10 kilometers (4-6 mi) above the Earth's surface.
The Moon's shadow on Earth's surface is about 7000 kilometers wide"roughly twice the diameter of the Moon (Figure 1.18). Outside of that shadow, no eclipse is seen.
Balloon flights can carry instruments to altitudes of up to 40 kilometers above sea level, where they are above as much as 99.997% of the Earth's atmosphere.
52 million kilometers (1.56 million miles). All nine known rings are visible in this image, a 15- second exposure through the clear filter on Voyager's narrow- angle camera. The rings are quite dark and very narrow.
extremely small, extremely dense star, about double the sun's mass but only a few kilometers in radius, in the final stage of stellar evolution. Astronomers Baade and Zwicky predicted the existence of neutron stars in 1933.
Even higher resolutions may be achieved if individual antenna elements are spaced thousands of kilometers apart. With these spacings it becomes impractical to send the signals from each antenna directly to a common point.
The Earth revolves around the Sun at a distance of around 150 million kilometers, or 93 million miles. The light coming from the surface of the Sun takes about 8 minutes to complete a journey to Earth.
Craters on Mercury range in diameter from a few meters to hundreds of kilometers across.
5 billion miles (4 billion kilometers) from Earth, making it too far to be seen with the unaided eye.
In the early 19th century a wave description was favoured, though it was difficult to understand what kind of wave could possibly be propagated across the near-vacuum of interstellar space and with the extremely high speed of 300,000 kilometers per ...
The collapse of a solar mass of material down into a neutron star the size of 10 kilometers releases 1053 ergs of energy which is an enormous amount. This energy emerges in three forms: ...
For the earth, this layer is considered to be roughly the lowest one or two kilometers of the atmosphere.
Light consists of weightless particles (that contain no mass) traveling at about 186,000 miles or 300,000 kilometers per second. These particles of light are called photons. But light also exhibits the characteristics of a wave.
Statistically, every 2000 years a 50-meter-diameter meteorite will slam into the Earth and form a crater a little more than a kilometer in diameter.
Everything within a radius of three to four kilometers was killed immediately. The fireball that formed should have scorched everything within a radius of ten kilometers.
Asteroids range in size from tiny pebbles to about 578 miles (930 kilometers) in diameter (Ceres). Sixteen of the 3,000 known asteroids are over 150 miles (240 km) in diameter. Some asteroids even have orbiting moons.
CERES: THE LARGEST ASTEROID ...
In fact, at 356,884 kilometers* -- or 221,757 miles -- February's perigee is the closest of the year, ensuing a foray that's called a proxigean spring tide.
3 million miles (15 million kilometers) per year. For example, about 2.5 years after launch, Spitzer will trail the Earth in its orbit by about 28 million miles (~ 45 million kilometers).
Typical distances between large asteroids are on the order of millions of kilometers, not just a few feet. At such great distances the odds of a collision between asteroids is rather low - though not impossible.
The fastest objects travel at roughly 42 kilometers per second (26 miles per second) through space in the vicinity of Earth's orbit.
At 1,470 miles (about 2,370 kilometers) diameter, Pluto could fit between Washington, D.C., and Denver, Colorado.
Pluto orbits the Sun once every 248 years.
A person on Pluto would weigh 1/15 what she or he would weigh on Earth.
Nucleus: (see comet) Kilometer-sized "dirty snowball" composed of dust (refractory material) and primarily water-ice which gives rise to all of the features observers associate with comets.
As part of the Student Rocket Project, I helped build a rocket payload that flew almost 100 kilometers into the atmosphere (spanning the entire D-region of the ionosphere, if you want to know the details!).
The color may also vary with altitude, where blood-red dominates above 200 kilometers and magenta 100 kilometers and below.
This close-up of the largest crater on Phobos, Stickney, 10 kilometers (6 miles) in diameter, shows individual boulders near the rim of the crater. Some of these boulders are enormous - more than 50 meters (160 feet) across.
(The observing expedition to Tahiti was led by Captain James Cook.) Anyway, the average distance from the Earth to the Sun is 150,000,000 kilometers (1.5 × 108). The angular diameter of the Sun is 32 arc minutes which is equal to about .
This is the remains of a supernova that exploded 5,000 years ago and is still expanding at 160 kilometers per second.
The tails can be several million kilometers long each, and the longest have been observed to be over one A.U. (over 93 million miles long).
 See also: Earth, Light, Second, Sun, Solar
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