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Page "Motion (physics)" ¶ 27
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Milky and Way
Finally we go into the farthest reaches of the Milky Way ; ;
It seemed almost a magnification of the Galaxy itself, of the Milky Way, blown up by some master photographer.
The information obtained by astrometric measurements provides information on the kinematics and physical origin of our Solar System and our galaxy, the Milky Way.
Astrometry is an important step in the cosmic distance ladder because it establishes parallax distance estimates for stars in the Milky Way.
They may similarly be produced in regions like the center of the Milky Way and other galaxies, where very energetic celestial events occur ( principally the interaction of relativistic jets with the interstellar medium ).
Because it occupies a part of the celestial sphere that faces away from the Milky Way, Antlia contains very few deep-sky objects.
The Milky Way, for example, has an absolute magnitude of about − 20. 5.
Antares ( α Scorpii, α Sco, Alpha Scorpii ) is a red supergiant star in the Milky Way galaxy and the sixteenth brightest star in the nighttime sky.
These names are from the love story of, Qī Xī, in which Niú Láng and his two children, β and γ Aquilae, are separated from their mother, (, ), the star Vega, by the Milky Way.
They are only permitted to meet once a year, when the Milky Way is crossed by a bridge of magpies.
Scholars have proposed that the bridge may have originally represented the Milky Way and have noted parallels between the bridge and another bridge in Norse mythology, Gjallarbrú.
He did not grasp the cosmological implications of this fact, and indeed at the time it was highly controversial whether or not these nebulae were " island universes " outside our Milky Way.
Across the top, the Milky Way disk appears distorted into an arc.
In this way, astronomers have identified numerous stellar black hole candidates in binary systems, and established that the core of our Milky Way galaxy contains a supermassive black hole of about 4. 3 million solar masses.
The Great Rift, a series of dark patches in the Milky Way, is more visible and striking in the southern hemisphere than in the northern.
" Members of the Inca civilization identified various dark areas or dark nebulae in the Milky Way as animals, and associated their appearance with the seasonal rains.
Due to the difficulty of using these methods, they did not realize that the nebulae were actually galaxies outside our own Milky Way, nor did they speculate about the cosmological implications.
From 1869 to 1872, he was employed as an Assistant in Harvard's astronomical observatory, doing important work on determining the brightness of stars and the shape of the Milky Way.
The Coalsack Nebula is the most prominent dark nebula in the skies, easily visible to the naked eye as a prominent dark patch in the southern Milky Way.
About seven million years old, an age that makes it one of the youngest open clusters in the Milky Way, it appears to have the shape of a letter A.
It is thought of as the anchor of Tama-rereti's waka ( the Milky Way ), while the Pointers are its rope.
Cetus lies far from the galactic plane, so that many distant galaxies are visible, unobscured by dust from the Milky Way.
NGC 1502 is also associated with Kemble's Cascade, an small chain of stars 2. 5 ° long that is parallel to the Milky Way and is pointed towards Cassiopeia.
Centaurus contains several very bright stars because of its position in the Milky Way ; in addition, its alpha and beta stars are used to find the constellation Crux.
It is the largest and brightest globular cluster in the Milky Way, at ten times the size of the next-largest cluster, it has a magnitude of 3. 7.

Milky and Galaxy
From the CMB data it is seen that our local group of galaxies ( the galactic cluster that includes the Solar System's Milky Way Galaxy ) appears to be moving at 627 ± 22 km / s relative to the reference frame of the CMB ( also called the CMB rest frame, or the frame of reference in which there is no motion through the CMB ) in the direction of galactic longitude l
" Accordingly, at least 160 billion star-bound planets may exist in the Milky Way Galaxy alone.
Unbound free-floating planetary-mass bodies in the Milky Way may number in the trillions, with 100, 000 objects larger than Pluto for every main-sequence star .< ref > Nomads of the Galaxy, Louis E. Strigari, Matteo Barnabe, Philip J. Marshall, Roger D. Blandford ; estimates 700 objects > 10 < sup >- 6 </ sup > Solar masses (≈ a Mars mass ) per main sequence star between 0. 08 and 1 Solar mass, of which there are billions in the Milky Way .</ ref >
A 2012 study of gravitational microlensing data collected between 2002 and 2007 concludes the proportion of stars with planets is much higher and estimates an average of 1. 6 planets orbiting between 0. 5 – 10 AU per star in the Milky Way Galaxy, the authors of this study conclude " that stars are orbited by planets as a rule, rather than the exception.
Since our own Milky Way Galaxy has at least 200 billion stars, it must also contain tens or hundreds of billions of planets.
At that time, the prevailing view of the cosmos was that the universe consisted entirely of the Milky Way Galaxy.
Our own galaxy ( the Milky Way ) has a tiny satellite galaxy ( the Sagittarius Dwarf Elliptical Galaxy ) which is currently gradually being ripped up and " eaten " by the Milky Way.
In the Local Group, the Milky Way and M31 ( the Andromeda Galaxy ) are gravitationally bound, and currently approaching each other at high speed.
In the astronomical literature, the capitalized word ' Galaxy ' is used to refer to our galaxy, the Milky Way, to distinguish it from the billions of other galaxies.
The radiation allowed for much improved study of the Milky Way Galaxy, since it is not affected by dust absorption and its Doppler shift can be used to map the motion of the gas in the Galaxy.
The Milky Way galaxy is currently in the process of cannibalizing the Sagittarius Dwarf Elliptical Galaxy and the Canis Major Dwarf Galaxy.
As an example of such an interaction, the Milky Way galaxy and the nearby Andromeda Galaxy are moving toward each other at about 130 km / s, and — depending upon the lateral movements — the two may collide in about five to six billion years.
The Milky Way and the Andromeda Galaxy are the two brightest galaxies within the group ; many of the other member galaxies are dwarf companions of these two galaxies.
Our own Galaxy, the Milky Way, is contained in the Local Group of more than 40 galaxies.
* The Goddess Weaver, daughter of the Celestial Mother, wove the stars and their light, known as " the Silver River " ( what Westerners call " The Milky Way Galaxy "), for heaven and earth.
The group comprises more than 54 galaxies ( including dwarf galaxies ), with its gravitational center located somewhere between the Milky Way and the Andromeda Galaxy.
The two most massive members of the group are the Milky Way and the Andromeda Galaxy.
* The Milky Way's satellite system consists of Sagittarius Dwarf Galaxy, Large Magellanic Cloud, Small Magellanic Cloud, Canis Major Dwarf, Ursa Minor Dwarf, Draco Dwarf, Carina Dwarf, Sextans Dwarf, Sculptor Dwarf, Fornax Dwarf, Leo I, Leo II, and Ursa Major I Dwarf and Ursa Major II Dwarf.
The outer Oort cloud is only loosely bound to the Solar System, and thus is easily affected by the gravitational pull both of passing stars and of the Milky Way Galaxy itself.

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