锥状星云的附近
影像来源与版权:Chilescope; Processing & Copyright: Utkarsh Mishra

说明:在锥状星云附近可以看到一些具有奇怪形状和纹理的结构。这些不寻常的结构是由细微的星际尘埃与年轻恒星释放的高能星光和炽热气体以复杂的方式相互作用而产生的。这幅特征影像右侧的最亮星是S Mon,而它下方的区域因其颜色和结构被昵称为狐皮星云。S Mon周围的蓝色辉光是附近尘埃反射了明亮恒星的星光所致。环绕整个区域的红色辉光不仅来自尘埃反射,还来自被星光电离的氢气辐射。S Mon是年轻疏散星团NGC 2264的一部分,位于麒麟座方向、距离我们约2500光年远处。尽管影像最左侧可见的神秘锥状星云正好指向S Mon,但该区域的细致结构仍然是个谜。
翻译:北京天文馆

In the Vicinity of the Cone Nebula
Image Credit: Chilescope; Processing & Copyright: Utkarsh Mishra

Explanation: Strange shapes and textures can be found in neighborhood of the Cone Nebula. The unusual shapes originate from fine interstellar dust reacting in complex ways with the energetic light and hot gas being expelled by the young stars. The brightest star on the right of the featured picture is S Mon, while the region just below it has been nicknamed the Fox Fur Nebula for its color and structure. The blue glow directly surrounding S Mon results from reflection, where neighboring dust reflects light from the bright star. The red glow that encompasses the whole region results not only from dust reflection but also emission from hydrogen gas ionized by starlight. S Mon is part of a young open cluster of stars named NGC 2264, located about 2500 light years away toward the constellation of the Unicorn (Monoceros). Even though it points right at S Mon, details of the origin of the mysterious geometric Cone Nebula, visible on the far left, remain a mystery.
Astronomy Picture of the Day 04/16/2019