lbn86：鹰射线星云
(原标题: LBN 86: The Eagle Ray Nebula)
2023-11-27
浏览次数: 17
这条鹰射线划过宇宙的海洋。这个暗星云的正式编号为SH2-63和LBN 86，由气体和尘埃组成，形状恰好像一条普通的海鱼。星际尘埃星云呈现出浅棕色，因为它阻挡和变红了从它后面发射出来的可见光。暗星云主要发出红外光，但也会反射周围恒星发出的可见光。暗星云中的尘埃通常是亚毫米级的碳、硅和氧块，经常包裹着冰冻的一氧化碳和氮。暗星云也被称为分子云，因为它们也含有相对较多的氢分子和较大的分子。这个被称为“鹰射线星云”的星云之前没有命名，它通常很暗，但在智利的黑暗天空中，它在20多个小时内被清晰地拍摄到了。关注APOD: Discord
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This eagle ray glides across a cosmic sea. Officially cataloged as SH2-63 and LBN 86, the dark nebula is composed of gas and dust that just happens to appear shaped like a common ocean fish. The interstellar dust nebula appears light brown as it blocks and reddens visible light emitted behind it. Dark nebulas glow primarily in infrared light, but also reflect visible light from surrounding stars. The dust in dark nebulas is usually sub-millimeter chunks of carbon, silicon, and oxygen, frequently coated with frozen carbon monoxide and nitrogen. Dark nebulas are also known as molecular clouds because they also contain relatively high amounts of molecular hydrogen and larger molecules. Previously unnamed, the here dubbed Eagle Ray Nebula is normally quite dim but has been imaged clearly over 20-hours through dark skies in Chile. Follow APOD on: Discord
© Vikas Chander