发射星云 emission nebula
- 发射星云沙普利斯249弥漫在图像的左上部。
Emission nebula Sharpless 249 fills the field at the upper left. - 内外层气体的碰撞产生了许多热的蓝色星体和粉红发射星云。
Collisions between gas in the inner and outer regions are creating many hot blue stars and pink emission nebula. - 广阔的“海鸥”(左上)本身由两个较大的被编目的发射星云组成。
The expansive Seagull (upper left) is itself composed of two major cataloged emission nebulae.
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