Sentences with phrase «to know the distance»

How do astronomers know the distances of planets, stars, and galaxies?

This is why you must first know the distance to a galaxy if you want to measure its mass.

By using the «speed = distance / time» formula, the camera knows the distance to the subject, and focuses accordingly.

«It collects the amplitude and phase information from each of the antennas, and knowing their distances from each other, it lines everything up to produce a coherent picture of the source,» says Jeff Mangum, an ALMA project scientist at the National Radio Astronomy Observatory (NRAO) in Charlottesville, Virginia, US.

For example, Riess's modern measurements rest on accurately knowing the distance to nearby pulsing stars.

Fortunately, several types of objects exist for which one can determine their absolute brightnesses without knowing their distances.

Owing to the shape and multiple attachment sites of the erector spinae, it appears appropriate to measure the muscle size at known distances throughout the length of the muscle, standardised to the vertebrae.

These people are all very busy and don't have time to surf the net and don't know distances in Scotland or France so that is where we (all 1.5 of us!)

However, understanding their true nature and physical characteristics depends crucially on knowing their distance.

The downside Stick - N - Find knows distance but not direction.

No one who knows a distance runner can be surprised: Although the crash crippled the Wyoming cross-country team, leaving it with only three members — four shy of the official minimum for competition — there was little thought of suspending the season.

Love knows no distance.

The starting point is knowing the distance from the earth to our sun; this distance is called one astronomical unit (AU) and is roughly 150 million kilometers.

Knowing the distance of the diameter of Earth's orbit, plus the two angles measured, gives a good notion of the distance to, say, another star.

About 3 million light - years away, an accurately known distance to NGC 206 and thus M31 is critical to the larger understanding of galaxy formation, galaxy evolution, and ultimately the distance scale of the Universe.

Without knowing these distances, astronomers can not precisely situate any given radio source within the galaxy to accurately reconstruct the Milky Way's morphology.

In order to determine the luminosities and masses of the galaxies and the distribution of the mass inside the galaxies, you must first know the distances to them.

Know the distance in pips and manage the trade according to your plan, but forget about the potential profits that the trade may or may not produce.

The basic notion of triangulation is that you can figure out a location if you know its distance relative to three distinct points.

Next time you are over an important putt and you know the distance and the matching stroke your confidence and results will improve.

«In principle it's a very easy experiment: you know the distance between A and B, you know how long it takes the neutrinos to get there, so you can calculate their speed,» Parke says.

Of the 52 potentially habitable exoplanets identified so far, 51 have a known distance from Earth, and 13 have the greatest chance of being life - friendly.

More recently, seamen and engineers alike have dismissed them as easily explainable: If you know the speed and direction of the wind, if you know the distance over which it has been blowing and the depth of the water, you can predict the height, length, speed, and even the frequency of any wave.

Compare that with the apparent brightness and you know the distance, even at larger scales where parallax measurements are impossible.

Studies using the 4.2 - meter William Herschel Telescope at La Palma, Canary Islands, the 10 - meter Keck Telescope at Mauna Kea, Hawaii, and the Hubble Space Telescope revealed a more - or-less sunlike star at the known distance of the supernova (some 9200 light - years) but with an unusually high space velocity.

«We have a lot of data points from around the Earth — we know in certain parts of the world the crust is a certain thickness, composed of a specific kind of rock and located a known distance from a volcano — and we take those relationships and apply them to what we know about Greenland,» said co-author Leigh Stearns, associate professor of geology at KU.

Scientists at the Bimini Biological Research Station in the Bahamas show the laser photogrammetry technique in action: pointing two lasers of a known distance (20 cm) parallel to the shark.

The solution of this problem comes from spectroscopy and an analysis of the spectra of the nearby stars for which we know the distances from their parallaxes.

«Before we knew the distance to any FRBs, several proposed explanations for their origins said they could be coming from within or near our own Milky Way Galaxy.

If you know the distance to a star, you can determine its luminosity and mass.

Remember way back in the planetary science chapter that the linear distance can be found from the angular distance if you know the distance to the object?

Knowing the distance accurately also allows them to measure the actual brightness of the microquasar's components, and this, they said, improves their understanding of the physical processes at work in the system.

Past attempts to find missing satellites around external galaxies at well - known distances have been unsuccessful because of the need for a very sensitive instrument capable of producing high - fidelity images, even in the vicinity of a bright source such as the Andromeda Galaxy.

Knowing the distance to the quasar, the researchers calculated the wavelength for Lyman alpha radiation from that distance and built a special filter for LRIS to get an image at that wavelength.

Knowing the distance to the spiral nebulae would allow the conversion of his measured angular rate of rotation to a rotational velocity in kilometers per second.

If a guy contacts you first, then he knows the distance required to court you, and if he's willing to span it, let him!

I like the cameo at the end that lets us know the distance we haven't traveled.

Reflected in the window / of a pharmacy, he writes in Litanies, you know the distance you've come.

Certainly, in the opinion of custom essays writing experts, it is easier for an older person to see how far away an object is from him than to tell how he knows its distance or point out the data on which his knowledge of the distance is based.

Now that you know the distance between Boston and Dublin (2,993 miles), you also know that you can fly roughly 2,000 miles more in Europe, and you'll still be under 5,000 miles.

(There's an immense difference between taking a trip from one place to the next with a known distance and duration, versus a journey where one does not know the destination or when or if he or she will arrive.)