银河系有四条巨型旋臂结构,而太阳系则位于半人马旋臂与英仙座旋臂之间,这两条旋臂都属于银河系的主旋臂,在这些主旋臂之间还拥有一些次级旋臂,比如猎户座旋臂,太阳系就位于猎户座旋臂上,距离银河系中央大约2.6万光年。科学家通过甚长基线阵列精确定位太阳系位置,发现猎户座旋臂可能是银河系的一条主旋臂,当前的银河系模型认为猎户座旋臂为一条次级旋臂,位于半人马旋臂与英仙座旋臂之间。
这段小小的旋臂被称为猎户座旋臂(Orion Arm),而旁边靠近银河系中心的大旋臂则被称为 人马座旋臂 ( Sagittarius Arm ),另一边离银河系中心较远的大旋臂则被称为英仙旋臂(也...
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Menkhib和加州星云大约距离地球1800光年,并在对银河系的地球银河系猎户座旋臂位于同一方向。
Menkhib and the California Nebula are about 1, 800 light-years away from Earth and are located within the same spur of the Orion spiral arm of the Milky Way galaxy as Earth.
Menkhib和加州星云大约距离地球1800光年,并在对银河系的地球银河系猎户座旋臂位于同一方向。
Menkhib and the California Nebula are about 1,800 light-years away from Earth and are located within the same spur of the Orion spiral arm of the Milky way galaxy as Earth.
它跨度近240光年,位于猎户座旋臂里,离地球3,800光年远;而我们的太阳系也在银河系同样的旋臂中。
It is located 3, 800 light-years away from Earth, inside the Orion spur — the same partial spiral arm of the Milky way where our solar system is located. The nebula is nearly 240 light-years across.
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