28个适于双筒望远镜观测的星云（28 nebulae suitable for binoculars observation）.docVIP

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28个适于双筒望远镜观测的星云（28 nebulae suitable for binoculars observation）.doc

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28个适于双筒望远镜观测的星云（28 nebulae suitable for binoculars observation）

28个适于双筒望远镜观测的星云（28 nebulae suitable for binoculars observation） 1 (IC4665) First find the Ophiuchus alpha star (2 star), and then the binocular vision slowly southward move 7 degrees, can be found in the view of the right end of the star beta (3 star). Place the R star in the middle of the field of view, and you can see the star cluster above the beta star. This is IC4665. IC4665 is a large open star cluster with brightness of 5.9 and diameter of 60. 2, Bonnie Ato J J Kis Taurus From the perspective of the star gamma beta Ophiuchus star 25 degrees south of the East (left) to move 3 degrees, can be found composed of 4 star 4 star and 1 star 5 star V shape, which is Bonnie Ato J J Ki taurus. In 1777, the astronomer Pozzi Aubut of Poland established the king Bonnie Ato J J Ki of Poland, because it is similar to the constellation of Taurus in its V shape, so it is also called taurus. This constellation has not been accepted by the astronomers, but it is interesting to know the historical origin of the V star arrangement with a double mirror. 3, near NGC6633 (OPH) Moving from Ophiuchus beta to alpha 10 degrees Aquila vision in binocular vision can be found in the 2 cluster, on the west side (right) is NGC6633, on the eastern side (left) is IC4756. NGC6633 is an open star cluster with brightness of 4.9 and diameter of 20. IC4756 is a large open star cluster with a brightness of 5.1 and an apparent diameter of 70. 4, near M11 (shield) The eagle from Alpha Centauri, along the delta star (3 star), a star (3 star) to find, when star enters the center of the field of vision, will move west 4 degrees, you can see the shield beta (4 star), a star in South shields beta 2 degrees, is M11. M11 is a very dense open star cluster of brightness 6.3, depending on the diameter of 12. Unfortunately, the binoculars cant break up the star cluster, but countless stars are arranged in a fan-shaped shape, like the shape of the nebula. Its beautiful. M11 has a smaller open cluster M26 at 3 degr