andromeda

GALAXIES

GALAXIES ARE THE HOME OF PLANETS, STARS, BLACK HOLES, NEBULAE, ETC... . THE GALAXIES ARE OF MANY TYPES:-

ALL THE GALAXIES HAVE A NUCLEUS AT  THE CENTER. THESE NUCLEUS CONTAINS THE MOST LARGEST, LUMINOUS AND STRONGEST STARS. MOST OF THE STRONGEST BLACK HOLES ARE PRESENT HERE.

THE SPIRAL AND THE BARRED SPIRAL GALAXY HAS THE NUCLEUS AT CENTER AND ITS ARMS ARE SPREAD LIKE KNIFES

THE GIANT ELLIPTICAL GALAXIES ARE GENERALLY FORMED BY THE COLLISION OF TWO OTHER GALAXIES

THE IRREGULAR GALAXY DOESN'T HAVE A SPECIFIC SHAPE OF ITS OWN. THEIR NUCLEUS'S POSITION IS NOT FIXED. OUR UNIVERSE HAS THE LARGEST NUMBER OF IRREGULAR GALAXIES 

HERE IS SOME INFORMATION ABOUT AN ENORMOUS SPIRAL GALAXY KNOWN AS THE ANDROMEDA.

ANDROMEDA 

ANDROMEDA IS A MAJOR GALAXY IN THE LOCAL GROUP OF GALAXIES,THIS IS A GROUP OF SOME 50 GALAXY . IT IS ABOUT 2.5 MILLION LIGHT YEAR FROM EARTH . ANDROMEDA IS EVEN LARGER THAN OUR OWN GALAXY THE MILKY WAY. THIS GALAXY IS CATALOGED AS M31 OR NGC224. ANDROMEDA  IS LOCATED IN ANDROMEDA CONSTELLATION IN THE GREAT ANDROMEDA NEBULAE . IT IS BELIEVED THAT IT HAS A DOUBLE NUCLEUS MEANS THAT ANDROMEDA IS FORMED DUE A COLLISION COURSE OF SOME PAIR OF GALAXIES . 

ANDROMEDA AND ITS COLLISION COURSE 

THE GREAT ASTRONOMER EDWIN HUBBLE HAS PROCLAIMED THAT ANDROMEDA WILL COLLIDE OUR MILKY WAY IN SOME 5 BILLION YEARS. THIS PHENOMENA IS KNOWN AS THE ANDROMEDA AND ITS COLLISION COURSE. NOW IN THE REUNION ISLAND IN INDIAN OCEAN THE MILKY WAY IS AT ITS BEST SIGHT WITH ITS GLORIOUS STARS IN A MOONLESS NIGHT, BUT IN THE 4TH BILLION YEAR THERE WILL BE A SPECTACULAR VIEW IN THE REUNION ISLAND . THE MILKY WAY WILL BE ACCOMPANIED WITH THE ANDROMEDA. THE NIGHT SEEN WILL BE LIKE THE ABOVE PICTURE



HOW WILL THE COLLISION TAKE PLACE

THE ABOVE PICTURE SHOWS THE SEQUENCES IN WHICH THE ANDROMEDA AND OUR GALAXY WILL FOLLOW. IN 2ND BILLION YEAR THE ANDROMEDA WILL OUTCOME ITS GLORY AND WILL BE 4TH BRIGHTEST CELESTRIAL OBJECT IN THE NIGHT SKY. THEN AT THE 4TH BILLION YEAR THE ANDROMEDA WILL GIVE HAND TO THE MILKY WAY. IT SIZE WOULD BE THAT OF OUR MILKY WAY. THEN BOTH THE GALAXIES WILL FOLLOW THE PROCESS OF ''THE GALAXY COLLIDING''. AND THIS PROCESS WILL LITERALLY TAKE 2 BILLION YEARS THEREFORE IT WILL TAKE TOTAL 6  BILLION YEARS FOR THE ANDROMEDA TO COLLIDE COMPLETELY WITH OUR GALAXY.

THE CONDITION OF EARTH AFTER THE COLLISION 

THIS WILL BE THE SIGHT FROM THE MOON AFTER THE COLLISION. THE COLLISION OF THE GALAXIES WILL RESULT IN THE FORMATION OF A NEW ELLIPTICAL GALAXY. THE LIGHT AHEAD OUR EARTH (THAT IS RED IN COLOR) IS THE RESULT.  ASTRONOMERS SAY THAT AFTER 6 BILLION YEARS THERE WOULD BE NO NIGHT IF THE EARTH SURVIVES THE COLLISION. IF THERE THERE WOULD BE A NIGHT THE TO IT WILL BE ON THE TIME WHEN THE SUN RISES THE REASON BEHIND THIS IS THAT THE COLLIDED GALAXIES (WHICH WILL BE  1,00,000 LIGHT YEARS  AHEAD) WILL BE MORE BRIGHTER THAN THE SUN. IF ONE LIVES FOR THE WHOLE 6 BILLION YEARS THEN HE WOULD BE ABLE TO SEE THE WHOLE COLLISION IF THE EARTH EXISTS. 

LOCATION

ANDROMEDA GALAXY IS ABOUT 2.5 MILLION LIGHT YEARS AWAY FROM EARTH. ANDROMEDA IS VERY EASY TO SPOT  IN A DARK AND A MOONLESS NIGHT, EVEN WITHOUT ANY BINOCULAR OR A TELESCOPE. FOR IDENTIFYING ANDROMEDA IN THE SKY WE SHOULD LOOK UP TO THE NORTHEAST OF THE PEGASUS CONSTELLATION.


ANDROMEDA IS THE FARTHEST OBJECT IN THE UNIVERSE VISIBLE TO A HUMAN EYE.