Constellations:- Stars Family

The Stars that the ancients saw close together in the sky are in most cases not near each other at all. They are located in the same direction in space , but may in reality be vast  distances apart just  as an airplane and a bird may appear  to be near each other though actually far apart . To these groups , or "Constellations" of star , the Greeks , Romans ,Chinese , Arabs, Indians and infact star watchers all over the world , gave names often taken from their Mythologies . Most of the names in us etoda Greek or Latin origin.

          The best known of Constellations is probably Ursa major ,the great bear in which the big Dipper forms the tail and part of back . A line through the " Pointer "stars in the bowl of the Big dipper points to Polaris when we are looking North Star . When  we look at polaris we are looking North . Other Famous Constellatins are Ursa Minor , the little Bear , containing polaris ; Orion , the Mighty hunter ; taurus the Bull, with the pleiades, or seven Sisters.

Signposts In The Sky:- 

                                                The Navigator on a ship or an aiplane cannot relay upon lecture to point out the Stars to him. He must know their Location & recognize them in other ways . There ae 55 Special Star known as the Navigation Star . To find all of them and to learn thier Position at the Various  seasons , we will have to study one of the Guide books listed  at the end of the section . But some of  stars are not too difficult to locate . Let's try to find that everybody should know.

                        Ofcourse we have heard of the North Star , called POLARIS , because it is almost directly above the North pole of our Earth . To find it , look for the Pointers . These are the two Stars in the outer Part of the bowl of the Big Dipper . Anyone can spot the Big Dipper because it really looks like a Dipper .follow the pointers across the sky about five times the distance between them and there we will see a bright Star . That is POLARIS.

On Zooming this Image we get :-

 

                                                                                                                                                        

Finding our way by the Stars :-

                                                                                               People who seems to know where to find the right path or locate a spot in strange places are often said to have a sense of direction . We may go on an overnight hike or champing sometime . Suppose we have no Compass . COULD WE FIND THE WAY BY STARS ?

 Answer is YES , we might do so if we had sense of direction . But it would be better to know how to find the North pole of the sky .Once we had find the north pole , we can find East by turning 1/4th right ,west by turning 1/4th left , or south by turning halfway around .

                                           No matter What the season is , if we live  north of the equator , we can easily find the north pole of sky easily .

FINDING THE NORTH POLE OF THE SKY:-

1 )Find the Large Group of seven bright Stars that look like a Dipper .

2 ) Follow along a line we draw between two stars in the bowl of dipper .

3 ) Look for the first bright star which is also the last star in the Handle of a Smaller  dipper of Seven stars . 

     That bright star is polaris  , the north pole star of the sky . It is almost exactly above the Noth pole of earth .

                                                     Now that we know how to find the polaris , we ought to know the names of the stars that helped to we find it .The big dipper is part of the group of Stars , or Constellation ,  called the Great Bear . The stars though which we drew your line are called the Pointers . The Small dipper is in the Constellation the little bear . If we can find these Stars & Constellations , we will not have to worry about a sense of direction or time . The Pole star will be Our guide . And the dippers will be our clock .As we take following direction than we see this Star Phenomenon     easily.....!!!!!

              Once we found the Dippers and Polaris ,we can use them as Guides to Locate some of the Other Constellations and navigational stars . Let our continue on across Polaris , we will see a Great quare of four Brilliants Stars (As Shown in above fig.) . This is the part of the Constellation of PEGASUS , the Winged Horse .  It is one of the unmistakable signposts in the sky . Between Polaris & Pegasus is a W - shaped Constellation . This is called CASSIOPEIA  , it means the Lady in Chair . It is easy to find Constelltions if we know a few to use as guides . we can also try to find star Chart . Then we go Star & Constelallation hunting in the our Beautiful Sky.

Our Place in Galaxy

As we look at the night sky , think of ourself as a passenger on a Space ship . Actually we are . Our Earth is a place traveling rapidly through Space. All around the earth is the universe . It is depend our self to study & enjoy , as far as our eyes can see . As we know that what is our Place in our Universe , There is so many Galaxy , Stars, Constellation etc. which is found in Universe . as compare to other our Earth is very Small.

     The Bold words of California Scientist Said" FIRST WE THROW A LITTLE SOME THING INTO SKIES, THEN A LITTLE MORE ,THEN A SHIPLOAD OF INSTRUMETS .

Some time Scientist Believe a Rocketship Loaded with instrument s will be sent to the moon within 50 years . No one knows Exactly how much we could learn from instruments we might send to the moon . But they would , no doubt , add to our  knowledge of astronomy , the science which studies Space & the things it contains.

    To Begin we need our eyes and good , clear , dark night . If we have a small Telescope or a pair of a good field Glasses , so much the better ...

AS we Understood in Following Chapters:

*Milkyway:-

  All the Stars we can see as Separate points of light are within our own Galaxy . Our Galaxy is known as The MILKYWAY galaxy . If we could view it from some place , say 900,000 lightyears away, it would look very much the way the galaxy Andromeda looks from th ou Earth.

                      How many stars we can think  as see on a Single night Under the best seeing Conditions....?

 The answer can may Surprise . ti is only about 2,000 . Of the Thousand of millions of stars in the Galaxy , Only 5,000 or 6,000 are Bright enough and near enough to seen Without Telescope or field glasses. At least half of these are hidden from our view , in the part of the sky at present below horizon . The horizon is the line in the distance  where the earth and sky seem to come together .

If we wait for few an Hours , the rotation of the earth will bring into view the stars now just below the Eastern horizon . The rotation of earth is from the west toward east . Therefore ,as the hour of night pass , the stars in the east appear to rise .Those in the western part of the sky appear to set as the night goes by .

Galaxy Star that belong Together:-

Even before Galileo's invention of the Telscope , Sky Watchers noticed that in addition to several thousand sharp points of light they called stars there were a few hazy , blurred patches in the night time sky to whichthey gave name of NEBULAE (clouds) . Early Telescopes revealed thousands more of these , and modern telescope s have shown that many of these nebulae are really systems  families containing millions of Star . Today we call these system as Galaxies , Although galaxies are millions of Light years apart , our giant telescope indicates that space contains atleast 100,000,000 Galaxies , each probly including many millions of stars ! The graet 18th century Astronomer Sir William Herschel called these galaxies "Island Universes" to emphasize the vast emptiness of space between them .

            The galaxy to which the earth belongs is the Milky wy . In this galaxy Our Sun is also one star among many billions of stars , and its nearest neighbor is Proxima Centuri . Every star that we can see with naked eye is part of our Milky way . Astronomers think that our galaxy is shaped like a disk a thin Watch ; that its diameter is about 1000,000 lightyears & its greatest thickness is about 10,000 lightyears; and that the sun is about two - thirds of the way from the galaxy's center to its edge. When we look along the plane of the " Watch " we see so many stars that the sky appears "milky " . when we look through the thickness of the watch , we see fewer stas in that part of sky . The entire Galaxy rotates in one direction , but its Stars may move at different speeds and in different directions .

                        The Nearest Galaxy Outside the Milkyway is the one Faintly visible to the naked eye as the famous great spiral in the Constellation Andromeda . This galaxy is estimated to be about 800,000light - years away. Next to our own Milky Way , it seems to e the Largest Galaxy often taken from thier Mythologies .  

           

 

  

Life

In visiting Today's world , Aditya Would certainly Amazed at tha number of People over 65 Years Of Age.

     In his Time , Diseases caused by Germs and poor Food took a Heavy tolls of life . Even by 2000 , the Average age to which people lived was only 40-45 years . Ofcourse , a number of people lived to a ripe Old Age .But a Great many died during Childhood from Germs dieseases. Poor diet helped to old the average age to which People lived Down around 50-55 years.

   At last " Life is Short Enjoy without any Sorrow..... Live with Happyness."