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2021年09月08日:仙女大星系方向的深空影像-(The Deep Sky Toward Andromeda)
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欢迎来到人生天地间
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2017年11月29日:M42:猎户座大星云-(M42: The Great Orion Nebula)
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2017年08月06日:银河与炸裂的流星-(Milky Way and Exploding Meteor)
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2024年02月11日:直指月亮的火箭烟尘影子-(Rocket Plume Shadow Points to the Moon)
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2024-01-09
2024年01月09日:雷神的头盔-(Thor's Helmet)
2024年01月09日:雷神的头盔-(Thor's Helmet)--原图下载{mtitle title="雷神的头盔"/}Image Credit & Copyright: Ritesh Biswas说明: 雷神索尔不但有他专属的曆日(星期四),天空中更有他的头盔。名为雷神头盔的NGC 2359,是一团有侧翼的头盔状宇宙云。然而,就是对北欧的神祇来说,这顶宽度达30光年的头盔也是庞大无比。其实这顶头盔较像星际气泡,是由中心附近的明亮大质量恒星发出的高速恒星风,在周围分子云里吹出的天体。这颗分类为沃夫-瑞叶恒星的中心星,则是处在前超新星演化短暂阶段的极端炽热巨星。座落在大犬座方向的NGC 2359,离我们约有15,000光年远。这幅极为清晰的影像,整合了透过窄波段滤镜所取得的影像数据,以记录自然色泽的恒星,并突显这团星云的云气丝之细微结构。位在雷神头盔中心的恒星,预期在接下来的数千年内,会发生壮观的超新星 爆炸。(Thor's Helmet 雷神的头盔、索尔的头盔){lamp/}原文:{mtitle title="Thor's Helmet"/}Image Credit & Copyright: Ritesh BiswasExplanation: Thor not only has his own day (Thursday), but a helmet in the heavens. Popularly called Thor's Helmet, NGC 2359 is a hat-shaped cosmic cloud with wing-like appendages.Heroically sized even for aNorse god,Thor's Helmet is about 30 light-years across.In fact, the cosmic head-covering is more likean interstellar bubble, blown with a fastwind from the bright, massive star near the bubble's center.Known as aWolf-Rayet star, the central star is an extremely hot giant thought to be in a brief,pre-supernova stage of evolution.NGC 2359 is located about 15,000 light-years away toward the constellation of the Great Overdog.This remarkably sharp imageis a mixed cocktail of data from narrowband filters,capturing not only natural looking stars but details ofthe nebula'sfilamentary structures.The star in the center of Thor's Helmet is expected to explode in a spectacularsupernova sometime within the next few thousand years.
2024年01月09日
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2022-12-20
2022年12月20日:雷神的头盔-(Thor's Helmet)
2022年12月20日:雷神的头盔-(Thor's Helmet)--原图下载{mtitle title="雷神的头盔"/}Image Credit & Copyright: Hannah Rochford说明: 雷神索尔不但有他专属的曆日(星期四),天空中更挂着他的头盔。名为雷神头盔的NGC 2359,是一团有侧翼的头盔状宇宙云。然而,就是对北欧的神祇来说,这顶宽度达30光年的头盔也是庞大无比。其实这顶头盔较像星际气泡,是由中心附近的明亮大质量恒星发出的高速恒星风,在周围分子云里吹出的天体。这颗分类为沃夫-瑞叶恒星的中心星,是一颗处在前超新星演化短暂阶段的极端炽热巨星。位在大犬座方向的NGC 2359,距离我们约有15,000光年远。这幅极为清晰的影像,整合了数个窄波段滤镜的影像数据,以记录自然色泽的恒星,并突显这团星云的云气丝细微结构。位在雷神头盔中心的恒星,预期会在接下来的数千年内,发生剧烈的超新星 爆炸。 (Thor's Helmet 雷神的头盔、索尔的头盔){lamp/}原文:{mtitle title="Thor's Helmet"/}Image Credit & Copyright: Hannah RochfordExplanation: Thor not only has his own day (Thursday), but a helmet in the heavens. Popularly called Thor's Helmet, NGC 2359 is a hat-shaped cosmic cloud with wing-like appendages.Heroically sized even for aNorse god,Thor's Helmet is about 30 light-years across.In fact, the cosmic head-covering is more likean interstellar bubble, blown with a fastwind from the bright, massive star near the bubble's center.Known as aWolf-Rayet star, the central star is an extremely hot giant thought to be in a brief,pre-supernova stage of evolution.NGC 2359 is located about15,000 light-years away toward the constellation of the Great Overdog.This remarkably sharp imageis a mixed cocktail of data from narrowband filters,capturing not only natural looking stars but details ofthe nebula'sfilamentary structures.The star in the center of Thor's Helmet is expected to explode in a spectacularsupernova sometime within the next few thousand years.
2022年12月20日
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2021-07-20
2021年07月20日:雷神的头盔-(Thor's Helmet)
2021年07月20日:雷神的头盔-(Thor's Helmet)--原图下载{mtitle title="雷神的头盔"/}Image Credit & Copyright: Bernard Miller说明: 雷神索尔不但有他专属的曆日(星期四),天空中更有他的头盔。名为雷神头盔的NGC 2359,是团有侧翼的头盔状宇宙云。然而,就是对北欧的神祇来说,这顶宽度达30光年的头盔也是庞大无比。其实这顶头盔较像星际气泡,是由中心附近的明亮大质量恒星发出的高速恒星风,在周围分子云里吹出的天体。这颗分类为沃夫-瑞叶恒星的中心星,是颗处在前超新星演化短暂阶段的极端炽热巨星。位在大犬座方向的NGC 2359,离我们约有15,000光年远。这幅极为清晰的影像,整合了来自宽和窄波段滤镜的影像数据,以记录自然色泽的恒星,并突显这团星云的云气丝细微结构。位在雷神头盔中心的恒星,预期会在接下来的数千年内,发生剧烈的超新星 爆炸。(Thor's Helmet 雷神的头盔、索尔的头盔){lamp/}原文:{mtitle title="Thor's Helmet"/}Image Credit & Copyright: Bernard MillerExplanation: Thor not only has his own day (Thursday), but a helmet in the heavens. Popularly called Thor's Helmet, NGC 2359 is a hat-shaped cosmic cloud with wing-like appendages.Heroically sized even for aNorse god,Thor's Helmet is about 30 light-years across.In fact, the cosmic head-covering is more likean interstellar bubble, blown with a fastwind from the bright, massive star near the bubble's center.Known as aWolf-Rayet star, the central star is an extremely hot giant thought to be in a brief,pre-supernova stage of evolution.NGC 2359 is located about15,000 light-years away toward the constellation of the Great Overdog.This remarkably sharp imageis a mixed cocktail of data from broadband and narrowband filters,capturing not only natural looking stars but details ofthe nebula'sfilamentary structures.The star in the center of Thor's Helmet is expected to explode in a spectacularsupernova sometime within the next few thousand years.
2021年07月20日
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2015-04-22
2015年04月22日:天鹅座色彩缤纷的星云-(Colorful Star Clouds in Cygnus)
2015年04月22日:天鹅座色彩缤纷的星云-(Colorful Star Clouds in Cygnus)--原图下载{mtitle title="天鹅座色彩缤纷的星云"/}Image Credit & Copyright: Andr� van der Hoeven说明: 恒星也会诞生在色彩缤纷的环境里。这幅主题影像呈现了天鹅座的亮星天津一附近,一片满是辉光云气和尘埃的恒星形成区。这片宽达50光年的区域,是离我们约1,800光年远的天津一星云之一部分。这幅影像右侧,可见到黝黑扭曲、满是低温分子气体的巴纳德344;影像中心,则有由尘埃和泛红辉光氢气所构成的壮观线状云墙。其中,泛红辉光云气标誌了一个个的小发射星云,而泛蓝的区域,则是尘埃微粒反射星光所造成的反射星云。天津一星云可能无法再撑个10亿年,因为它大多数的亮星会爆炸、绝大部分的尘埃会被摧毁、而大部分的气体会飘走。{lamp/}原文:{mtitle title="Colorful Star Clouds in Cygnus"/}Image Credit & Copyright: Andr� van der HoevenExplanation: Stars can form in colorful surroundings. Featured here is a star forming region rich in glowing gas and dark dust toward the constellation of the Swan (Cygnus), near the bright star Sadr. This region, which spans about 50 light years, is part of the Gamma Cygni nebula which lies about 1,800 light years distant.Toward the right of the image is Barnard 344, a dark and twisted dust cloud rich in cool molecular gas. A dramatic wall of dust and red-glowing hydrogen gas forms a line down the picture center.While the glowing red gas is indicative of small emission nebulas, the blue tinted areas are reflection nebulas -- starlight reflecting from usually dark dust grains. The Gamma Cygni nebula will likely not last the next billion years, as most of the bright young stars will explode, most of the dust will be destroyed, and most of the gas will drift away.
2015年04月22日
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