Copyright:
原文:
It’s the bubble versus the cloud. NGC 7635, the Bubble Nebula, is being pushed out by the stellar wind of massive central star BD+602522. Next door, though, lives a giant molecular cloud, visible to the right. At this place in space, an irresistible force meets an immovable object in an interesting way. The cloud is able to contain the expansion of the bubble gas, but gets blasted by the hot radiation from the bubble’s central star. The radiation heats up dense regions of the molecular cloud causing it to glow. The Bubble Nebula, featured here in scientifically mapped colors to bring up contrast, is about 10 light-years across and part of a much larger complex of stars and shells. The Bubble Nebula can be seen with a small telescope towards the constellation of the Queen of Aethiopia (Cassiopeia). Astrophysicists: Browse 1,200+ codes in the Astrophysics Source Code Library
中文翻譯:
🌌💫 【泡泡星雲】與【雲霧】的較量！NGC 7635，即泡泡星雲，正在中央恆星BD+602522的恆星風推動下擴張。鄰近的巨型分子雲則在右側可見。在這片空間裡，無可抵擋的力量遇上了不可動搖的物體，形成相當有趣的情況。雲能夠抑制泡泡氣體的擴張，但卻被泡泡中中央恆星的熱輻射轟擊。這輻射加熱了分子雲的密集區域，使其發光。科學家用不同顏色去映射泡泡星雲，以提高對比度。這個星雲直徑大約是10光年，並且是更大星系和星殼的組成部分。泡泡星雲可以用小型望遠鏡在女皇卡西奧比亞（Cassiopeia）星座中觀察到。
#泡泡星雲 #NGC7635 #星際風 #天文學 #分子雲 #宇宙探索 #女皇卡西奧比亞 #天文攝影 #恆星形成 #星際氣體
來源:NASA每日圖片
