7500 light years away from Earth and is located in the Perseus Arm of the Galaxy in the constellation Cassiopeia. It is an emission nebula showing glowing ionized hydrogen gas and darker dust lanes.
The laser collimator is a very useful tool especially for amateur astronomers. My model ( Baader Laser Collimator Mark III ) works very well, but has one disadvantage, like any other type of this type. The weakest link in the whole construction is the SR battery model. Usually, the battery likes to fail when the collimator tool is most needed. The battery model is not very popular and, unfortunately, it is not the cheapest. So I’ve made an external power supply for Laser Collimator MK III.
The Pleiades also known as the Seven Sisters and Messier 45, are an open star cluster containing middle-aged, hot B-type stars located in the constellation of Taurus. It is among the star clusters nearest Earth and is the cluster most obvious to the naked eye in the night sky.
6000 light years away from Earth and is located in the Perseus Arm of the Galaxy in the constellation Cassiopeia. It is an emission nebula showing glowing ionized hydrogen gas.
7500 light years away from Earth and is located in the Perseus Arm of the Galaxy in the constellation Cassiopeia. It is an emission nebula showing glowing ionized hydrogen gas and darker dust lanes.
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