Small constellation Ursa Minor contains only 25 stars visible to the naked eye. It is not particularly bright nebulae or galaxies, and it contains no star clusters. But the constellation is good because it can be observed at any time of year. Constellations Big and Little Dipper. These constellations are known to all by the characteristic stellar figures representing them. This, of course, will focus on the Big and Small Buckets. In this photo, we see that the shape of animals take up much more space than the buckets. Pictures of bears are taken author J. C. Casado, with engravings XVII century Polish astronomer Jan Hevelius. And the picture was taken in the Canary Islands, on the shore of the island of Lanzarote. In these latitudes the celestial north pole leans heavily World: North Star, mark the end of the tail of the Ursa Minor, is low on the horizon.
The splendid mosaic dominated by two bright stars: Kohab (or beta Ursa Minor) is visible on the right and on the left, at the end of the handle is the famous bucket North Star pointing to the north pole of the world. Thousands of stars – red, blue, yellow – visible in the picture, and among them appeared thin clouds of interstellar dust, which lie above the plane of the Milky Way. They do not highlight any individual stars, but the total light from all the stars in the Galaxy.
North Star – the main attraction of the constellation Ursa Minor. Even in a small telescope near the North Star can see satellite 8.8 eV. magnitude. The photo did not get satellite, since it is too close to the star and gets lost in its rays. But to the left of Polaris perfectly clear ring of stars. This asterism known diamond ring, which will be discussed below
The galaxy NGC 6217 in the constellation Ursa Minor. NGC 6217 belongs to a class of crossed helices: arms of the galaxy is not moving away from the nucleus, and extended from the bridge. While spiral galaxies are bright and wide, indicating that the place in which a rapid process of star formation. The galaxy NGC 6217 is located 80 million light-years from Earth. Galaxy can be seen in telescopes and binoculars with an aperture of more than 80 mm
Another attraction of the Little Dipper – asterism called Small hanger. (The picture is tilted to the right.) This is a small copy of the famous asterism in the constellation Vulpecula hanger. Small size hangers are small, only 20 minutes of arc, and the stars that make up this asterism are 11.9 stellar magnitudes
Diamond Ring Little Dipper. This asterism, also known as the engagement ring, includes several stars 9.10 magnitude. Stars form a ring in which the diamond is bright North Star. It is best to watch with binoculars asterism with an aperture of 50 mm and more. Dark night far from city lights ring looks very impressive.
This is a dwarf elliptical galaxy UGC 9749 Little Bear, one of the closest companions of our Galaxy. The distance to the star system is only about 200,000 light years – twice the diameter Milky Way by galactic standards UGC 9749 tiny baby: its mass is 10 – 20 million solar masses, and the sizes of a few thousand light-years.
Thin gas and dust nebulae Little Dipper. A small constellation Ursa Minor no large emission nebula, or dark dust clouds, as the constellation is located away from the Milky Way. However, as could be seen from the photo number 2, Ursa Minor permeate subtle, like a veil, gas and dust nebulae. Visually see them almost impossible, and getting a good shot is very hard. The fact that these images require large exposures, so you need to telescope remained completely motionless with respect to this part of the sky
Picture of the nebulae around the North Star, made through a special filter. Thin gas-dust clouds illuminated not any particular star, but all the stars of the Galaxy. The distance to the nebula of the Ursa Minor is a few hundred light years, about the same as before, and the North Star.