Three of the five main Crux stars — Acrux, Mimosa, and Delta Crucis — are co-moving B-type members of the Scorpius-Centaurus Association, the nearest OB association to the Sun.

Alpha Centauri is a triple star system that contains Proxima Centauri, the nearest star to the Sun.

Many of Niven's stories take place in his Known Space universe, in which humanity shares the several habitable solar systems nearest to the Sun with over a dozen alien species, including the aggressive feline Kzinti and the very intelligent but cowardly Pierson's Puppeteers, which are frequently central characters.

This places the cloud at nearly a quarter of the distance to Proxima Centauri, the nearest star to the Sun.

The nearest star to Earth is the Sun, which is the source of most of the energy on the planet.

In January 2009, the Research Consortium on Nearby Stars project counted eight white dwarfs among the hundred star systems nearest the Sun.

The perihelion, the point in the comet's orbit when it is nearest the Sun, is just 0. 6 AU ( between the orbits of Mercury and Venus ), while its aphelion, or farthest distance from the Sun, is 35 AU ( roughly the distance of Pluto ).

Proxima Centauri, the nearest star to the Sun, is a red dwarf ( Type M5, apparent magnitude 11. 05 ), as are twenty of the next thirty nearest.

An eclipse does not happen at every new or full moon, because the plane of the orbit of the Moon around the Earth is tilted with respect to the plane of the orbit of the Earth around the Sun ( the ecliptic ): so as seen from the Earth, when the Moon is nearest to the Sun ( new moon ) or at largest distance ( full moon ), the three bodies usually are not exactly on the same line.

* 39. 9 Pm — 4. 22 light years — Distance to Proxima Centauri ( nearest star to Sun )

First, Earth's orbit is an ellipse, not a circle, so the Earth moves faster when it is nearest the Sun ( perihelion ) and slower when it is farthest from the Sun ( aphelion ) ( see Kepler's laws of planetary motion ).

Journeys to the nearest planets, Mars and Venus, use a Hohmann transfer orbit, an elliptical path which starts as a tangent to one planet's orbit round the Sun and finishes as a tangent to the other.

At a distance of, Epsilon Eridani is the 13th nearest known star ( and ninth nearest solitary star or stellar system ) to the Sun as of 2011.

The nearest star to the Sun ( and thus the star with the largest parallax ), Proxima Centauri, has a parallax of 0. 7687 ± 0. 0003 arcsec.

It is the nearest star in the southern constellation Sagittarius, and one of the closest to the Sun.

Kapteyn's Star is distinctive in a number of other regards: it has a high radial velocity, orbits the Milky Way retrograde, and is the nearest known halo star to the Sun.

At that time it was the 20th nearest star system to the Sun.

Le Verrier soon reported that Mercury's perihelion — the peak of its orbital ellipse nearest to the Sun — advanced each time Mercury completed an orbit, a phenomenon not predicted by Newton's theory, which astrophysicists were so confident in that they predicted a new planet, named Vulcan.

The Sun, the nearest star to the Earth, is known to emit radio waves, though it is virtually the only regular star that has been detected in the radio spectrum, because it is so close.

The distance from the front edge of the circle to where the discus has landed is measured, and distances are rounded down to the nearest centimetre.

The distance of the throw is measured from the throwing arc to the point where the tip of the javelin landed, rounded down to the nearest centimeter.

" Oxfordians also consider it significant that the nearest town to the parish of Hackney, where de Vere later lived and was buried, was also named Stratford.

In cases where posting exactly half the big blind is impractical due to the big blind being some odd-valued denomination, the small blind is rounded down to the nearest practical value.

The boy is rushed to the nearest hospital where he is prepared for emergency surgery.

In countries where a tablespoon is a serving spoon, the nearest equivalent to the US tablespoon is either the dessert spoon or the soup spoon.

where is the average wave height along the nearest coast.

Along with the short line, service line, and side wall these lines define the doubles box, where the non-serving doubles partner stands during the serve ; 36 inches from the side wall is another set of lines which, along with the short line and the service line, define an area that the server must not enter if he wishes to hit a drive serve between himself and the nearest side wall.

By convention, is ten times the ellipticity of the galaxy, rounded to the nearest integer, where the ellipticity is defined as for an ellipse with semi-major and semi-minor axes of lengths and respectively.

He knew this Union reaction was underway, and that the nearest railhead was Bridgeport, Alabama, where portions of two Union corps would soon arrive.

Although the sex ratio in 2075 is about 2 men to each woman, the result is a society where women have a great deal of power, and any man who offends or touches a woman uninvited is likely to be attacked and eliminated through the nearest airlock.

In addition to the ceremony held in the City of Hamilton on Remembrance Day itself, marching to the Cenotaph ( a smaller replica of the one in London ), where wreaths are laid and orations made, a smaller military parade is also held in St. George's on the nearest Sunday to Remembrance Day.

d ) they could not be certain that the two halves of the map, held together by a binding strip glued on the back, had ever been a single sheet — unlike any other known medieval double-page map ; looking at the map, it is clear that the artist knew exactly, to the nearest millimeter, where it was going to be folded, because several place-names start or finish right next to it while none are written straight across it, and the rivers of eastern Europe run parallel to it ;

It is a square, crenulated stone tower and bears the inscription: " This tower was raised by the people of Orkney in memory of Field Marshal Earl Kitchener of Khartoum on that corner of his country which he had served so faithfully nearest to the place where he died on duty.

The nearest community is Neuhausen am Rheinfall, where tourists can also view the Schloss Wörth castle.

For a particle which has equal amplitude to move left and right, the Hermitian matrix H is zero except for nearest neighbors, where it has the value c. If the coefficient is everywhere constant, the condition that H is Hermitian demands that the amplitude to move to the left is the complex conjugate of the amplitude to move to the right.

Oil produced by the well was shipped in barrels to the nearest refinery in Kansas, where it was sold for $ 1. 00 a barrel.

Genevieve, the nearest point where anyone authorized to perform the service could be found.

It allows efficient computation of Voronoi diagrams, where each pixel in an image is assigned to the nearest of a set of points.

In the article on " Railways " in the Supplement to the Encyclopaedia Britannica, published in 1824, it is said: " It will appear that this species of inland carriage is principally applicable where trade is considerable and the length of conveyance short ; and is chiefly useful, therefore, in transporting the mineral produce of the kingdom from the mines to the nearest land or water communication, whether sea, river or canal.

The nearest railway station is in the town of Sheringham where access to the national rail network can be made via the Bittern Line to Norwich.

However, the callose and a phloem protein will be moved through the nearest sieve plate where they will form a plug.

Today, the nearest National Weather Service cooperative weather station is in San Rafael, where records date back to 1894.

The nearest National Weather Service station is at the nearby San Francisco International Airport, where records go back to early 1927.