About 10 o’clock local daily time in June in June, face the North and look over seven stars tailoring the famous Big Dipper. During this time of the year, the handle appears to stand nearly corrected while the bowl appears to be terminated; drain the unknown content to the right. Dipper is not a constellation of himself, but an asterism, a famous pattern or group of stars, which usually has a famous name, belongs to a specified constellation.
For most of the gazers in heaven, the Big Dipper Perhaps is the most important group of tow in the sky. For any of the New York latitude (41 degrees north) or north points, it does not go under the horizon. It is one of the most recognizable patterns in the sky and thus one that is easiest to find new novice. Of the most important is the ability to use the Big Dipper to find Polariis, The North Star.
It makes it possible with two bright stars marking the outer edge of the big dipper bowl. These two stars – Dubhe and Merak – known as pointers, because they always teach Polaris. Draw only a line, with your imagination, between two stars and pressing this line about 5 times, our map shows; This line will eventually hit a moderately star. That can be Polaris.
Even those who live well in the south of Ecuador see the big dipper today. During the autumn of the southern hemisphere, it appears to hovering up over the northern horizon for the forests 30-degree forest. That includes northern two-thirds of South America and almost all in Africa. His guide to Classic Constellation, “The stars – a new way to see them,” The writer Ha Rey is skewing a cute cartoon on page 24 to a mother kangaroo and its joey above the caption: “The Dipper?
And yet for the northern two-thirds of Australia, in April, May and June, the immersion of the point that appears to be hanging over the north horizon.
Try to Selestial Eye
The half star at the Dipper handle was Zeta Ursae Majoris; The Greek letter is the name given, and the likelihood of the Latin name of its constellation. In this case Major the UrsaThe great bear – is the family name.
But this particular star is more known as “Mizar,” from Arabic meaning for “wrapping” or “cover.”
In your eyes alone, if you look so closely, you notice that Mizar appears to have a fainter partner of Alcor, who is also obtained from Arabic, meaning “weakened.” Persia Al Kazwini said in the 13th century people tried their view of this star. “
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Mizar and Alcor known as “horse and riders” in ancient Arabs and Arabian writes Al Firuzabadi, in the 14th century refers, “the test” or “the riddle.” So, when the ancient Arabs say: “He will see Alcor,” they refer to the one with normal vision. Why not try your own sight by looking for Alcor tonight?
Alcor is a fifth as bright as Mizar and the two stars separated by a third of the obvious diameter of the month. Both stars lie about 83 light-theeard distances and recent observations suggest that Alcor traveled to Mizar to a wide orbit worth 750,000 years.
Binoculars give a better view of this pair, but there is more to see here than many skywatchers realize.
Two stars for the price of one
As an example, Mizar, himself is a true binary star; One at first observed and acknowledged to be a pair of binary astronomers in the 17th century. A binary star two or more stars associated with each other and “unlocked” or connected to gravity.
They actually orbit each other in a single-sized basis and the planets ordain the day or the moon ordaining the land. To see the mizar partner you need a small telescope and an eyepiece that gives a size of at least 50-power.
And replacement planet
Between Mizar and Alcor and a little in their south is a 8th strong star that has previously mistakenly with a new planet. In December 1722, German professor Johann Georg Liebknecht informed that this item has just been transferred to the current position. He seized his “Planet” Sidus Ludoviciana – Ludwig star – to flatter his local Sovereign Ludwig v to Hese-Darmsttadt in the hopes of money.
The item no longer works again.
Liebknecht is lost in a hail in joke, but it is awesome the name of “faux” or “eersatz” “Planse stayed until this day!
Giant star and a large galaxy
If you take a line east from Mizar by Alcor, you will find a 5th Suffering of the star, which shines in a different Ruddy Hue. That is 83 ursae primegis, a red giant star about 80 times more and about 1,300 times more frighten than the sun. It is located at a distance of 580 light-the year from us.
If you keep ahead of the same line of doubles in the past 83, you go to the big, but dark Galaxy M101. Under a black sky m101 appears in 7 x 50 and larger binoculars in the same way Pierre Méchain describes it in 1781: “Too much and so beautiful.” It is known as “Pinwheel Galaxy,” and in 21 million light years, it is one of the nearest spiral galaxies in our Milky Way. But to determine the structure of the spiral of this, you need a larger telescope, very dark sky and a low powerful eyepiece.
Say Goodbye to Dipper
Finally, our familiar dipper doesn’t last forever. With seven stars consisting of this pattern, five apparent belonging to a loose joint of the stars, all hurting space at the same speed and the same direction. This five distance of distances from 78 to 84 light-thor from WORLD. Two of the stars, however – the Dubhe (the northern pointer) and alkaid (the star at the end of the handle) – not about rosars in the opposite speed of the opposite direction. Alkaid is 101-old-year-old distance, while Dubhe is 124 tables away.
These opposing motives gradually change the form of Big Dipper. In short, the dipper slowly. The crooked craftsmanship turns while the time is dressed, while the bowl spread. In fact, this is still a relatively convincing Dipper for the next 25,000 years, but 50,000 years (or 2,000 generations) from today it is hopeless form.
If you are looking for a telescope or binocular to observe the sky at night, our guides for Best Binoculars Deals and the Best Telescope deals today can help with. Our guides to best cameras for astrophotography and best lens for astrophotography Can also help you get ready to take the next skywatching scene.
Joe Rao serves as a teacher and guest lecturer in New York’s Hayden Planetarium. He wrote about astronomy for Magazine in natural history,, Sky and Telescope and other publications.
