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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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2023-12-23
2023年12月23日:十二月的仲夏夜-(A December Summer Night)
2023年12月23日:十二月的仲夏夜-(A December Summer Night)--原图下载{mtitle title="十二月的仲夏夜"/}Image Credit &Copyright:Ian Griffin(Otago Museum)说明: 这幅在今年冬至附近,摄于地球南半球的纽西兰之8分钟长曝光影像,记录了静谧夜空的缤纷色彩。在这片南眺的视野里,恒星旋绕着顶缘外头的南天极,曳出短短的同心圆弧状星轨。在影像的中左方,有南十字群星的星轨及煤袋星云所造成的黝黑斑块。其中,南门二及马腹一的明亮泛黄与泛蓝星轨,更倒映在南岛奥塔哥半岛太平洋沿岸胡珀斯湾的海面上。此外,在12月的这个仲夏夜里,南极光也为山丘上方的天空抺上明亮的绿与红晕。左上角斜贯的淡绿光带,则是大气受到阳光激发的一连串化学反应所发出的气辉,这种高层大气的辉光,显然有别于因高能粒子撞击而触发的极光。{lamp/}原文:{mtitle title="A December Summer Night"/}Image Credit &Copyright:Ian Griffin(Otago Museum)Explanation: Colours of a serene evening sky are captured in this8 minute exposure, made nearthis December's solsticefrom New Zealand, southern hemisphere,planet Earth.Looking south, star trails form the short concentric arcs aroundthe rotating planet's south celestial polepositioned just off the top of the frame.At top and left of center are trails of the Southern Cross starsand a dark smudge from theMilky Way's Coalsack Nebula.Alpha and BetaCentauri make the brighter yellow and blue tinted trails,reflected below in the waters of Hoopers Inlet in the Pacific coast of the South Island'sOtago Peninsula.On that short December summer night,aurora australis alsogave luminous, green and reddish hues to the sky above the hills.Aurora shine as atoms and molecules in the upper atmosphereare excited by collisions with energetic particles.An upper atmospheric glowdistinct from the aurora,a pale greenish airglow caused bya cascade of chemical reactionsexcited by sunlight,can be traced in diagonal bands at top left.
2023年12月23日
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2019-12-07
2019年12月07日:时间的迹线-(Lines of Time)
2019年12月07日:时间的迹线-(Lines of Time)--原图下载{mtitle title="时间的迹线"/}Image Credit &Copyright: Anton Komlev说明: 在不停转动的行星上,随着时间流转,恒星在夜空中会曳出星像迹线。这幅由多张连续曝光照片数位叠加而成的影像,是用位在地球.俄罗斯.滨海边疆区.奥勒尔农场的一部搭配广角镜头之相机,摄于2个多小时期间。在影像中,恒星曳出的同心圆弧迹线,是以位在地平面下方的南天极及右上角外的北天极为中心。此外,这幅叠加多张短曝光照片的影像,也让恒星的色泽得以显现出来。其中,泛蓝的星像迹线来自比太阳炽热的恒星,而泛黄的迹线则源自比太阳低温的恒星。非常久之前,这颗树曾枝繁叶茂,不过随着时间流逝,如今徒留下时间蚀刻出的皱缩风化残躯。{lamp/}原文:{mtitle title="Lines of Time"/}Image Credit &Copyright: Anton KomlevExplanation: In time stars trace lines through the night skyon a rotating planet.Taken over two hours or more, these digitally added consecutive exposureswere made with a camera and wide angle lens fixed to a tripodnear Orel farm, Primorsky Krai, Russia, planet Earth.The stars trail in concentric arcs around the planet'ssouth celestial polebelow the scene's horizon, and north celestial pole offthe frame at the upper right.Combined, the many short exposures also bring out the pretty starcolours.Bluish trails are from stars hotter than Earth's Sun,while yellowish trails are from cooler stars.A long time ago this treeblossomed, but nowreveals the passage of time in the wrinkled and weathered linesof its remains.
2019年12月07日
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2019-08-02
2019年08月02日:蝘蜓座II暗星云-(Chamaeleon II Dark Cloud)
2019年08月02日:蝘蜓座II暗星云-(Chamaeleon II Dark Cloud)--原图下载{mtitle title="蝘蜓座II暗星云"/}Image Credit &Copyright:Don Goldman说明: 蝘蜓座是南天极附近,一个里头没有亮星的小星座。不过,这个星座里的黝黑尘埃分子云複合体,仍不停的在形成恒星。在这幅影像里,距离约500光年远的蝘蜓座II暗分子云,之所以会以剪影之姿现蹤,是因为有南天的繁星为衬托。这幅张角与满月相当的望远镜影像,依这团暗星云的估计距离来换算,大约涵盖了5光年的区域。在这幅清晰影像中心附近,带着特徵泛红辉光的物体,是因刚诞生恒星发出的喷流,冲撞激震周围的云气发光而形成的赫比格-哈罗天体。{lamp/}原文:{mtitle title="Chamaeleon II Dark Cloud"/}Image Credit &Copyright:Don GoldmanExplanation: A small constellation hiding near thesouth celestial pole,The Chamaeleon boasts no bright stars.Stars are forming within its constellation boundaries though,in a complex of dark, dusty molecular clouds.Some 500 light-years distant, theChamaeleon IIdark nebula inhabitsthis view where the cosmic dust clouds standout mostly in silhouetteagainst the starry southern sky.Thetelescopic frame is about the angular size of a Full Moonand so spans about 5 light-years at the dark cloud's estimated distance.Scattered near center a telltale reddish glow from identifiedHerbig-Haroobjects is seen in the sharp image, jets of shocked glowing gasemanatingfrom recently formed stars.
2019年08月02日
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2018-12-08
2018年12月08日:小小行星的缩时景观-(Tiny Planet Timelapse)
2018年12月08日:小小行星的缩时景观-(Tiny Planet Timelapse)--原图下载2018 December 8 <iframe width="960" height="540"src="https://www.youtube.com/embed/14TrSQQsrNM?rel=0" frameborder="0"allow="accelerometer" allowfullscreen>{mtitle title="小小行星的缩时景观"/}Video Credit &Copyright: Brian Haidet -Music Credit:Space Walk - Silent Partner说明: 在这颗小小行星上,你能够把大量的天空塞进30秒长的影片里。想当然耳,这些完整球形的缩时影像,是摄于地球之上;确切的地点则是美国.北卡罗莱纳州.派赫斯特镇郊的巨杉天文台。这部摄于今年9月初的影片,使用数位技术整合配置圆形鱼眼镜头的单一部相机在24小时期间朝上拍摄的影像,与及相机及镜头在另一个24小时期间朝下拍摄的影像。所取得的影像数据,然后经过处理并投影到以天底(相机的正下方)为中心的平场影框上。影片里,可见到云朵飘飞、暗影掠过、天空迴旋、与及从白画变成黑夜时,恒星在地平线附近迴绕。请继续观赏,在第二段时,投影的中心是南天极,在这颗小小行星地平面下方的地球自转轴指向。当以恒星为导星时,变成小小行星在迴旋,地平面也跟着转动,不论是白画或黑夜都遮住了一半的天空。{lamp/}原文:{mtitle title="Tiny Planet Timelapse"/}Video Credit &Copyright: Brian Haidet -Music Credit:Space Walk - Silent PartnerExplanation: You can pack a lot of sky watching into 30 seconds on this tiny planet.Of course, the full spherical image timelapse videowas recorded onplanet Earth, fromGrandePines Observatory outside Pinehurst, North Carolina.It was shot in early September with a single camera and circularfisheye lens,digitally combining one 24-hour period with camera and lens pointed upwith one taken with camera and lens pointed down.The resulting image data is processed and projected ontoa flat frame centered on thenadir,the point directly below the camera.Watch as clouds pass, shadows creep, and the sky cycles from day to nightwhen stars swirl around the horizon.Keep watching, though.In a second sequence the projected center is thesouth celestial pole,planet Earth's axis of rotation below the tiny planet horizon.Holding the stars fixed, the horizon itself rotates as the tinyplanet swings around the frame, hiding half the skythrough day and night.
2018年12月08日
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2018-12-01
2018年12月01日:珠穆朗玛峰上空的恆星迹线-(Mount Everest Star Trails)
2018年12月01日:珠穆朗玛峰上空的恆星迹线-(Mount Everest Star Trails)--原图下载{mtitle title="珠穆朗玛峰上空的恆星迹线"/}Image Credit &Copyright: Jeff Dai(TWAN)说明: 在这幅山峦与夜空影像里入镜的,是地球的最高峰。这张在9月30日那晚,在珠峰基地营用固定在三脚架的相机连续拍摄的240张照片数位合成之影像,呈现了珠穆朗玛峰壁立的北面及受到明亮月光照耀的前景。这系列摄于1.5小时期间的照片,也记录了美丽多彩的恒星迹线。这些以远在崎岖地平线下方的南天极为中心的平滑同心弧,显示地球是在绕地轴自转。而恒星迹线的色泽,其实标示出恒星的温度;其中,较高温恒星的迹线色泽偏蓝,黄及红色泽的迹线来自比太阳低温的恒星。{lamp/}原文:{mtitle title="Mount Everest Star Trails"/}Image Credit &Copyright: Jeff Dai(TWAN)Explanation: The highest peak onplanet Earthis framed in this mountain and night skyscape.On September 30, the digital stack of 240 sequential exposuresmade with a camera fixed to a tripod at an EverestBase Camp captured the sheernorth faceof the Himalayan mountain and foreground illuminatedby bright moonlight.Taken over 1.5 hours, the sequence also recorded colorful star trails.Reflecting the planet's daily rotation on its axis,their motion is along gentle concentric arcs centered on thesouth celestial pole,a point well below the rugged horizon.The colorof the trails actually indicates the temperatures of the stars.Blueish hues are from hotter stars, and yellow to reddish huesare from stars cooler than the Sun.
2018年12月01日
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2018-03-02
2018年03月02日:阿波兹山脉上空的星像迹线 -(Alborz Mountain Star Trails)
2018年03月02日:阿波兹山脉上空的星像迹线 -(Alborz Mountain Star Trails)--原图下载{mtitle title="阿波兹山脉上空的星像迹线 "/}Image Credit &Copyright: Stéphane Guisard(Los Cielos de America,TWAN)说明: 在这幅广角山岳与天空影像里,色彩缤纷的圆弧状星像迹线划过夜空。这张摄于自转地球、南眺伊朗北部的阿波兹山脉之影像,组合自固定在三脚架上的相机连续拍摄的数位照片。影像里的同心圆弧状恒星迹线,环拱着位在崎岖地平线下方的南天极。在叠加这些短曝光照片之后,影像得以呈现恒星美丽的色泽。其中,泛蓝的迹线来自温度比太阳高的恒星,而泛黄的迹线则来自较低温的恒星。在影像中心附近的那道醒目的粉红迹线,则是由恒星形成区猎户座大星云所造成的。{lamp/}原文:{mtitle title="Alborz Mountain Star Trails"/}Image Credit &Copyright: Stéphane Guisard(Los Cielos de America,TWAN)Explanation: Colourful star trails arc through the night in this wide-angle mountain andskyscape.From a rotating planet,the digitally added consecutive exposureswere made with a camera fixed to a tripod and looking south,over northern Iran'sAlborz Mountain range.The stars trace concentric arcs around the planet'ssouth celestial pole,below the scene's rugged horizon.Combined, the many short exposures also bring out the pretty star colours.Bluish trails are from stars hotter than our Sun,while yellowish trails are from cooler stars.Near the center, the remarkably pinkish trail was traced by thestar-formingOrion Nebula.
2018年03月02日
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