Sentences with phrase «rotation axis of»

We measure an inclination between the projected planetary orbital axis and the projected stellar rotation axis of lambda = -26.9 + / - 4.6 deg, indicating a moderate inclination of the planetary orbit.

It wasn't the rotation axis of Mars that shifted (a process known as variation of obliquity) but rather the outer layers (mantle and crust) that rotated with respect to the inner core, rather like turning the flesh of an apricot around its stone.

Since the rotation axis of Saturn inclines compared to its orbital plane around the Sun, the ring opening angle to the Sun changes over a 15 - year cycle.

The team has also found that the rotation axes of these quasars tend to be aligned with the vast structures in the cosmic web in which they reside.

The large - scale structure is shown in blue and quasars are marked in white with the rotation axes of their black holes indicated with a line.

The angle between the rotation axes of the disks is 77 degrees.

Not exact matches

Also, sun set and sun rise are predominantly caused by the rotation of the Earth around its own axis, and only in small part by its orbit around the sun.

The conservation of angular momentum applied to the flotsam that became earth caused the poles (the 2 points where the earth intersects the axis of rotation.

Note also that the work translated as «day» can also be translated as «age», and does not always refer to a 24 hour period (one rotation of the earth on it's axis).

It's not a bad thought — especially if Cedi makes a case for himself — but I'd be surprised if by the Finals, there's not a trimming of the rotation that axes Cedi and one of Korver and Green.

According to the data obtained from the stellar occultation, the ring lies on the equatorial plane of the dwarf planet, just like its biggest satellite, Hi'iaka, and it displays a 3:1 resonance with respect to the rotation of Haumea, which means that the frozen particles which compose the ring rotate three times slower around the planet than it rotates around its own axis.

«So the first time she tried it,» he says, «she went up in the air, brought her legs and arms along the axis of rotation — and did one and a half turns.

New and very precise observations using the HARPS spectrograph at the ESO 3.6 - metre telescope at La Silla, Chile, have now not only detected the motion of the spots due to the rotation of Ceres about its axis, but also found unexpected additional variations suggesting that the material of the spots is volatile and evaporates in sunlight.

Since neither the Earth's rotation around its axis, nor the direction of its axis, nor the Moon's orbit are perfectly regular, their combined effect on motion in the core is unstable and can cause fluctuations in the geodynamo.

The time it takes for Earth to complete one rotation is affected by anything that changes the distribution of the planet's mass relative to its axis of rotation.

Since the moon spins on its axis at the same speed it revolves around Earth, what scientists call synchronous rotation, you'll always have a good view of home.

In the simplest models of reversals, the Earth's magnetic field behaves like a bar magnet that points roughly along the planet's axis of rotation.

In 1993, Jacques Laskar of the Paris Observatory in France and colleagues showed that the moon helps stabilise the tilt of Earth's rotation axis against perturbations by Jupiter's gravity.

This is due to the thaw following the last ice age: the melting of glaciers lets the crust rebound, redistributing Earth's mass and leading to subtle changes in its axis of rotation.

The terrestrial North Pole is a fixed geographic point that's diametrically opposed to the terrestrial South Pole on our planet's axis of rotation; it's the top of the spinning top that's Earth.

14 Stock up on DVDs and fire up the sunlamp: Uranus's axis of rotation is nearly aligned with the plane of its orbit, meaning that each pole on Uranus experiences a 42 - year - long summer of steady sunshine — followed by a depressing 42 years of winter darkness.

Uranus» magnetic field and rotation axis are out of alignment by 59 degrees, unlike Earth's, whose magnetic field and rotation axis are nearly aligned.

The jets and outflows, by contrast, seemed to throw matter up and down along the disk's axis of rotation.

Because of this, the robot can use bearings with far bigger diameter on its rotation portion as compared to humans and animals, whose shoulder joints are arranged on different axes.

Because Mercury's axis of rotation doesn't tilt at all (which means there's no summer or winter) some deep craters at the poles may be in perpetual shadow, and that could protect any ice patches from the heat of the sun.

EL61, as it is officially known, is a mass of ice and rock that flops through space with a spin rate far faster than that of any known body its size, making complete rotations around its wide axis every four hours.

Because Earth's axis of rotation points very close to Polaris, all other stars in the Northern Hemisphere appear to revolve around it.

The wobble in Earth's axis of rotation is a combination of two major components, each with its own cause.

By contrast, the four - meter Mayall telescope a few blocks away weighs 375 tons because it has an equatorial mount aligned with Earth's axis of rotation.

The dominant model is based on the slow cooling of celestial bodies, which causes convection, which in turn creates large vortices of molten iron parallel to the axis of rotation of the celestial body.

From Earth, big - dish radar can precisely measure the changing tilt of Mercury's rotation axis as well as what one of the co-authors calls «the planet doing the twist»: tiny changes in its rotation speed due to solar tides.

And, as one geophysicist writes, «the torques from the sun, moon, and planets move the rotation axis [of Earth] in space; torques from the atmosphere, ocean, and fluid core move the rotation axis relative to the crust of Earth.

Even stranger, that orbit is tilted high above the star's equator and axis of rotation.

The team then went further and looked to see if the rotation axes were linked, not just to each other, but also to the structure of the Universe on large scales at that time.

These black holes are surrounded by spinning discs of extremely hot material that is often spewed out in long jets along their axes of rotation.

The team could not see the rotation axes or the jets of the quasars directly.

In addition to accretion disks, black holes also have winds and incredibly bright jets erupting from them along their rotation axis, shooting out matter and radiation at nearly the speed of light.

However, due to the rotation of Earth around its own axis, dark matter particles that come from the direction of the dark matter wind, travel different distances during the 24 hour period of a day.

That motion, over a period of months, would allow researchers to very accurately characterize the wobble in Mars's axis of rotation, and might therefore provide a long - sought answer to whether Mars has a molten core, as Earth does.

The position of the sun in our sky is dictated by the speed of Earth's rotation — it turns on its axis at a speed of 460 meters per second, or approximately 1,000 miles per hour!

The apparent movement of the sun across the sky is the result of Earth's rotation on its axis.

A decade ago, geophysicists observed that seismic waves from earthquakes that travel through the core parallel to the Earth's axis of rotation pass through the Earth between 2 and 4 seconds faster than if they travel parallel to the plane of the equator.

However, the intermediate axis, in the case of a tennis racket, the transverse axis, is unstable and even miniscule agitations reliably trigger an additional 180 - degree rotation.

The disc's gravity pulled the protoplanets» axes of rotation in one direction, but Jupiter's gravity pulled them in the opposite direction.

An analysis of recent measurements indicates that one of the main nonuniformities of the earth's rotation - its tendency to wobble gently about its rotation axis - may be excited by major earthquakes

But orbital precession occurs only when two black holes have axes of rotation that point in random directions, and it disappears when the axes are both perpendicular to the orbital plane.

Due to the approximate alignment of the magnetic axis with the rotation axis, the energetic particle losses due to the moons are expected to be much more pronounced than the ones in the other outer planets (Roussos et al. 2007).

Due to the complexity of their magnetic fields, and the large tilt of their magnetic axes with respect to their rotation axes, we expect the solar wind interactions with the planetary fields to challenge our understanding of magnetic and plasma interactions.

The formation of binary minor planets, tumbling action, and period change are most likely due to the YORP effect, which is a thermal process where absorbed sunlight, re-radiated as heat, can affect the minor planet's rotation period and even spin axis orientation.

Such oscillations occur naturally as the irregular nucleus rotates about its spin axis and reflects different amounts of sunlight during a rotation cycle.