Via Lactea e Andromeda abraçando-se em futuro distante?

Andromeda, a Princesa Acorrentada




Os desenhos formados pelas estrelas - AS CONSTELAÇÕES - são como janelas que se abrem para a infinitude do universo


e que possibilitam nossa mente a ir percebendo que existe mais, bem mais, entre o céu e a terra...;

bem como percebendo que o caos, vagarosamente, vai se tornando Cosmos e este por nossa mente sendo conscientizado.




Quer dizer, nossa mente é tão infinita quanto infinito é o Cosmos.




Com um abraço estrelado,

Janine Milward

Galaxies near and far: Milky Way and Andromeda



Central starry pathway is the Milky Way, our home galaxy. The Andromeda galaxy is an elongated fuzzy patch, just right of center. Photo copyright Mike Taylor of Taylor Photography.


http://en.wikipedia.org/wiki/Andromeda_Galaxy

Future collision with the Milky Way



The Andromeda Galaxy is approaching the Milky Way at about 300 kilometres per second (190 mi/s),[1] making it one of the few blueshifted galaxies. The Andromeda Galaxy and the Milky Way are thus expected to collide in about 3.75 or 4.5 billion years, although the details are uncertain since Andromeda's tangential velocity with respect to the Milky Way is known to only within about a factor of two.[79] A likely outcome of the collision is that the galaxies will merge to form a giant elliptical galaxy.[80] Such events are frequent among the galaxies in galaxy groups. The fate of theEarth and the Solar System in the event of a collision is currently unknown. If the galaxies do not merge, there is a small chance that the Solar System could be ejected from the Milky Way or join M31.[81]

http://en.wikipedia.org/wiki/Andromeda_Galaxy




NASA's Hubble Shows Milky Way is Destined for Head-on Collision with Andromeda Galaxy

http://hubblesite.org/newscenter/archive/releases/2012/20/image/b/


Image: Nighttime Sky View of Future Galaxy Merger


http://hubblesite.org/newscenter/archive/releases/2012/20/image/b/format/xlarge_web/

ABOUT THIS IMAGE:

This series of photo illustrations shows the predicted merger between our Milky Way galaxy and the neighboring Andromeda galaxy, as it will unfold over the next several billion years. The sequence is inspired by dynamical computer modeling of the inevitable future collision between the two galaxies.
First Row, Left Panel: Present Day — This is a nighttime view of the current sky, with the bright belt of our Milky Way. The Andromeda galaxy lies 2.5 million light-years away and looks like a faint spindle, several times the diameter of the full Moon.
First Row, Right Panel: 2 Billion Years — The disk of the approaching Andromeda galaxy is noticeably larger.
Second Row, Left Panel: 3.75 Billion Years — Andromeda fills the field of view. The Milky Way begins to show distortion due to tidal pull from Andromeda.
Second Row, Right Panel, and Third Row, Left Panel: 3.85-3.9 Billion Years — During the first close approach, the sky is ablaze with new star formation, which is evident in a plethora of emission nebulae and open young star clusters.
Third Row, Right Panel: 4 Billion Years — After its first close pass, Andromeda is tidally stretched out. The Milky Way, too, becomes warped.
Fourth Row, Left Panel: 5.1 Billion Years — During the second close passage, the cores of the Milky Way and Andromeda appear as a pair of bright lobes. Star-forming nebulae are much less prominent because the interstellar gas and dust has been significantly decreased by previous bursts of star formation.
Fourth Row, Right Panel: 7 Billion Years — The merged galaxies form a huge elliptical galaxy, its bright core dominating the nighttime sky. Scoured of dust and gas, the newly merged elliptical galaxy no longer makes stars and no nebulae appear in the sky. The aging starry population is no longer concentrated along a plane, but instead fills an ellipsoidal volume.
NOTE: These illustrations depict the view from about 25,000 light-years away from the center of the Milky Way. The future view from our solar system will most likely be markedly different, depending on how the Sun's orbit within the galaxy changes during the collision.
Object Names: M31, NGC 224, Andromeda Galaxy
Image Type: Illustration
Science Illustration Credit: NASAESA, Z. Levay and R. van der Marel (STScI), T. Hallas, and A. Mellinger


 Collision Scenario for Milky Way and Andromeda Galaxy Encounter


ABOUT THIS IMAGE:

This illustration shows the inevitable collision between our Milky Way galaxy and the Andromeda galaxy approximately 4 billion years from now. The galaxies are moving toward each other under the inexorable pull of gravity between them. A smaller galaxy, Triangulum, may be part of the smashup.
Image Type: Illustration
Credit: NASAESA, and A. Feild and R. van der Marel (STScI)


Nighttime Sky View of Future Galaxy Merger: 3.75 Billion Years

ABOUT THIS IMAGE:

Andromeda fills the field of view. The Milky Way begins to show distortion due to tidal pull from Andromeda.
Object Names: M31, NGC 224, Andromeda Galaxy
Image Type: Illustration
Science Illustration Credit: NASAESA, Z. Levay and R. van der Marel (STScI), T. Hallas, and A. Mellinger




http://hubblesite.org/newscenter/archive/releases/2012/20/image/n/format/web_print/

Fate of Sun After Galaxy Collision


ABOUT THIS IMAGE:

This illustration is a before-and-after comparison of the size of our Milky Way galaxy at present, and after it fully completes a merger with the neighboring Andromeda galaxy 10 billion years from now. The merged galaxies will blend together to create an elliptical galaxy of aging stars. Our Sun now orbits in the Milky Way's disk. But after the merger, it likely will be tossed into a looping orbit that will bring it both nearer to the center and farther into the outskirts of the newly formed elliptical galaxy.
Image Type: Illustration
Credit: NASAESA, and A. Feild and R. van der Marel (STScI)



VÍDEOS:


Simulação da NASA da Via Láctea colidindo com a galáxia Andrômeda

Andrômeda, nossa galáxia vizinha, está se aproximando cada vez mais da Via Láctea, as duas são separadas por uma distância de 2,5 milhões de anos, porém estão convergindo a uma velocidade média de 400 mil quilômetros por hora devido à gravidade que exercem uma sobre a outra.




Cientistas acreditam que elas começarão a se fundir em 4 bilhões de anos, e dentro de mais 2 bilhões devem se tornar uma única entidade. Ainda segundo eles, a posição do nosso sol será alterada, porém os planetas que orbitam a sua volta não enfrentam muito risco de serem destruídos e, caso a espécie humana sobreviva, terá uma bela visão noturna do céu aqui da Terra.

Milky Way Versus Andromeda As Seen from Earth

 Scientists have been using Hubble observations to predict the future of the Andromeda Galaxy and the Milky Way, and how the collision will look from Earth. Projecting the motion of Andromeda's stars over the next 8 billion years, the astronomers now know the path that galaxy is taking through space. And it's heading straight for us! Computer simulations based on Hubble observations show how the two galaxies will crash together in around 4 billion years' time.


DA TERRA .......................... AO CÉU ....................
..........................................................
............................................ 
 E 
AO INFINITO.................
..........................


Os desenhos formados pelas estrelas - AS CONSTELAÇÕES - são como janelas que se abrem para a infinitude do universo

e que possibilitam nossa mente a ir percebendo que existe mais, bem mais, entre o céu e a terra...;
bem como percebendo que o caos, vagarosamente, vai se tornando Cosmos e este por nossa mente sendo conscientizado.

Quer dizer, nossa mente é tão infinita quanto infinito é o Cosmos.


Com um abraço estrelado,

Janine Milward

Science Illustration Credit: NASA, ESA, Z. Levay and R. van der Marel (STScI), T. Hallas, and A. Mellinger