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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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2022-03-29
2022年03月29日:金星和火星:在夜空擦身而过-(Venus and Mars: Passing in the Night)
[2022年03月29日:金星和火星:在夜空擦身而过-(Venus and Mars: Passing in the Night)--原图下载](https://apod.nasa.gov/apod/image/2203/VenusMars_Fairbairn_1433.jpg"onMouseOver="if (document.images)document.imagename1.src='image/2203/VenusMars_Fairbairn_960_annotated.jpg';"onMouseOut="if (document.images)document.imagename1.src='image/2203/VenusMars_Fairbairn_960.jpg';){mtitle title="金星和火星:在夜空擦身而过"/}Image Credit & Copyright: Carlos Kiko Fairbairn说明: 当两颗行星在夜空擦身而过时,通常在一周或更长时间里,它们彼此都很接近。例如在上面这例行星近合里,金星和火星在本月稍早的这段期间,二者相隔不到4度。数天前在巴西的Teresópolis小镇,拍下这幅由4张照片组合而成的主题影像时,当时金星在黎明前的天空中缓慢升起,而夜过一夜,火星则缓缓西沉。除了金星和火星之外,目前清晨的天空还可见到更遥远的土星。当然,它们只是在视角上发生近合,金星、火星和土星仍持续在我们太阳系的不同区域绕太阳运行。在下星期,土星和火星之间的视间距将降至四分之一度以下。{lamp/}原文:{mtitle title="Venus and Mars: Passing in the Night"/}Image Credit & Copyright: Carlos Kiko FairbairnExplanation: When two planets pass on the night sky, they can usually be seen near each other for a week or more.In the case of this planetary conjunction, Venus and Mars passed within 4 degrees of each other earlier this month.The featured image was taken a few days prior, when Venus was slowing rising in the pre-dawn sky, night by night, while Mars was slowly setting.The image, a four-part mosaic, was captured in Brazil from the small town Teresópolis.Besides Venus and Mars, the morning sky now also includes the more distant planet Saturn. Of course, these conjunctions are only angular -- Venus, Mars, and Saturn continue to orbit the Sun in very different parts of our Solar System. Next week, the angle between Saturn and Mars will drop to below a quarter of a degree.
2022年03月29日
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2021-09-13
2021年09月13日:夜空的倒影-(Night Sky Reflected)
2021年09月13日:夜空的倒影-(Night Sky Reflected)--原图下载{mtitle title="夜空的倒影"/}Image Credit & Copyright: Egon Filter说明: 镜子里有什么?在这幅以幽暗南天为主题的影像里,地球夜空中最明亮的3个星系皆清楚易辨。从左侧往右,它们分别是小麦哲伦星系(SMC)、大麦哲伦星系(LMC)、和我们银河系的部分中央盘面。此外,这三个天体都在浅浅的水面映出倒影。不过,在这位爱玩的天文摄影者所放置的镜子里,到底能看到那些天体?答案是我们银河中央附近的尘埃云及木星。这幅摄于巴西南部莫斯塔达斯区、经过仔细规划的影像,是由2019年中使用同一部相机在某晚的同地点所拍摄的多张照片组合而成。这幅影像于2021年国际暗空协会所举办的记录暗空竞赛里,获得“暗空的连结”组之首奖殊荣。{lamp/}原文:{mtitle title="Night Sky Reflected"/}Image Credit & Copyright: Egon FilterExplanation: What's that in the mirror?In the featured image of the dark southern sky, the three brightest galaxies of the night are all relatively easy to identify.Starting from the left, these are the Small Magellanic Cloud (SMC), the Large Magellanic Cloud (LMC), and part of the central band of our Milky Way Galaxy.All three are also seen reflected in a shallow pool of water.But what is seen in the mirror being positioned by the playful astrophotographer?Dust clouds near the center of our Milky Way -- and the planet Jupiter. The composite was carefully planned and composed from images captured from the same camera in the same location and during the same night in mid-2019 in Mostardas, south Brazil. The picture won first place in the Connecting to the Dark division of the International Dark-Sky Association's Capture the Dark contest for 2021.
2021年09月13日
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2021-01-12
2021年01月12日:古巴西的星座-(A Historic Brazilian Constellation)
[2021年01月12日:古巴西的星座-(A Historic Brazilian Constellation)--原图下载](https://apod.nasa.gov/apod/image/2101/OldMan_Guerra_6000.jpg"onMouseOver="if (document.images)document.imagename1.src='image/2101/OldMan_Guerra_960.jpg';"onMouseOut="if (document.images)document.imagename1.src='image/2101/OldMan_Guerra_960_lines.jpg';){mtitle title="古巴西的星座"/}Image Credit & Copyright: Rodrigo Guerra说明: 夜空到处都是故事。历史上的人类文明,经常以他们流传久远的传奇人物,来为上方的星空命名。而世世代代的人们,眼观这些星座,耳闻相关的故事,然后再把它们流传下去。在这张主题影像里,我们并不熟悉的老人星座 ,就是目前住在巴西的南美洲原住民图皮人眼中的夜空星座之一。依现代的认知,这个星座的头部可能是毕宿星团,而猎户腰带是老人的一条腿,而在图皮人传说中,另一条腿则被他狂怒的妻子给砍了,剩下以橙红参宿四为断点的半条腿。而影像左缘附近的昴宿星团,可能是他的羽冠。在这幅主题影像里,这位跛脚的老人有在前景入镜的凡人为伴。与夜空相关的传说有其重要性,因为它代表文化的传承,更记录了人类特有的智慧和想像力。{lamp/}原文:{mtitle title="A Historic Brazilian Constellation"/}Image Credit & Copyright: Rodrigo GuerraExplanation: The night sky is filled with stories.Cultures throughout history have projected some of their most enduring legends onto the stars above.Generations of people see these stellar constellations, hear the associated stories, and pass them down.Featured here is the perhaps unfamiliar constellation of the Old Man, long recognized by the Tupi peoples native to regions of South America now known as Brazil. The Old Man, in more modern vernacular, may be composed of the Hyades star cluster as his head and the belt of Orion as part of one leg. Tupi folklore relates that the other leg was cut off by his unhappy wife, causing it to end at the orange star now known as Betelgeuse.The Pleiades star cluster, on the far left, can be interpreted as a head feather.In the featured image, the hobbled Old Man is mirrored by a person posing in the foreground. Folklore of the night sky is important for many reasons, including that it records cultural heritage and documents the universality of human intelligence and imagination.
2021年01月12日
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2019-12-10
2019年12月10日:巴西上空的星链卫星迹线-(Starlink Satellite Trails over Brazil)
2019年12月10日:巴西上空的星链卫星迹线-(Starlink Satellite Trails over Brazil)--原图下载{mtitle title="巴西上空的星链卫星迹线"/}Image Credit & Copyright: Egon Filter说明: 地平线上方的这些光痕是什么?它们是正在反射阳光的星链卫星。在今年的6月,太空探险公司发射60颗星链通讯卫星,然后在11月又新布署了60颗。这些卫星及接下来数年之中,通讯公司规画要发射的数千颗这种卫星,会让这种迹线变得相对常见。目前天文界已出现不少质疑的声音,认为这些卫星的反照光会干扰未来观测天空的工作。这些出现在巴西南部天空的星链卫星平行迹线,是由33张照片叠加而成。在影像里,前景有棋布的向日葵,右上角则有一闪而过的明亮流星。卫星的反照光并非新事物,由66颗发射于20年前的第一代铱卫星组成之通讯系统,有时甚至会产生在白天都看得见的亮闪。不过,大部分的这些旧铱卫星,在过去的数年间已经离开地球轨道。(Starlink satellites 星链卫星){lamp/}原文:{mtitle title="Starlink Satellite Trails over Brazil"/}Image Credit & Copyright: Egon FilterExplanation: What are those streaks over the horizon?New Starlink satellites reflecting sunlight.SpaceX launched 60 Starlink communication satellites in May and 60 more in November.These satellites and thousands more are planned by communications companies in the next few years that may make streaks like these relatively common.Concern has been voiced by many in the astronomical community about how reflections from these satellites may affect future observations into space. In the pictured composite of 33 exposures, parallel streaks from Starlink satellites are visible over southern Brazil.Sunflowers dot the foreground, while a bright meteor was caught by chance on the upper right.Satellite reflections are not new -- the constellation of 66 first-generation Iridium satellites launched starting 20 years ago produced some flares so bright that they could be seen during the day.Most of these old Iridium satellites, however, have been de-orbited over the past few years.
2019年12月10日
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2019-10-15
2019年10月15日:夜空高悬的银河-(The Galaxy Above)
2019年10月15日:夜空高悬的银河-(The Galaxy Above)--原图下载{mtitle title="夜空高悬的银河"/}Image Credit & Copyright: Rodrigo Guerra说明: 最近你端详过我们的银河系吗?如果你见到的天空景观如似,或许你会更常凝视天空。这幅主题影像,是由上个月在巴西南部使用同一部相机,在同一地点相隔数小时拍摄的二张照片叠合而成。 在影像中入镜的拍摄者,可以见到高悬银河的许多景观。其中,我们银河系的中央盘面,从左下向右上伸展。上头散布着许多精采的天体,包括丝缕状黝黑云气、明亮的泛蓝恒星、和泛红的星云。背景银河上,则有数以百万计的较暗且较红繁星。银河的右下方,可见到多彩的星宿增四尘埃云,以及亮橙色的星宿二。星宿二右方的明亮行星,则是木星。对人类而言,夜空有许多很熟悉的古老景观,也为它们创造了许多相关的故事传说,并启发摄影者拍下这幅影像。{lamp/}原文:{mtitle title="The Galaxy Above"/}Image Credit & Copyright: Rodrigo GuerraExplanation: Have you contemplated your home galaxy lately? If your sky looked like this, perhaps you'd contemplate it more often!The featured picture is actually a composite of two images taken last month from the same location in south Brazil and with the same camera -- but a few hours apart. The person in the image -- also the astrophotographer -- has much to see in the Milky Way Galaxy above.The central band of our home Galaxy stretches diagonally up from the lower left.This band is dotted with spectacular sights including dark nebular filaments, bright blue stars, and red nebulas. Millions of fainter and redder stars fill in the deep Galactic background. To the lower right of the Milky Way are the colorful gas and dust clouds of Rho Ophiuchi, featuring the bright orange star Antares. On this night, just above and to the right of Antares was the bright planet Jupiter. The sky is so old and so familiar that humanity has formulated many stories about it, some of which inspired this very picture.
2019年10月15日
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2019-09-30
2019年09月30日:巴西上空的猎户座-(Orion Rising over Brazil)
2019年09月30日:巴西上空的猎户座-(Orion Rising over Brazil)--原图下载{mtitle title="巴西上空的猎户座"/}Image Credit &Copyright: Carlos Fairbairn说明: 你最近看过猎户座吗?在接下来这数个月的夜晚,猎户座将越来越早升起,所以将是观赏这个熟悉星座的最佳时机。不过在肉眼里,不要预期猎户座的群星和星云,色彩会如这幅精采相机影像这么缤纷。在这幅上个月用相机摄于巴西.中西区的猎户座全彩影像里,位在左侧最明亮的低温红巨星参宿四为亮橙色。而猎户座数量众多的炽热泛蓝恒星之中,超巨星参宿七在右上角,参宿五在左上角,参宿六在右下角。排成猎户腰带的三颗恒星之中,由下到上分别是参宿一、 参宿二及参宿三。它们诞生于猎户座广被探索的星际云之内,距离都在1,500光年左右。如果你发现位在右上角猎户配剑上的一颗"星",看起偏红而且弥漫,这并非你眼花。它正是有猎户座大星云令名的恒星形成区。{lamp/}原文:{mtitle title="Orion Rising over Brazil"/}Image Credit &Copyright: Carlos FairbairnExplanation: Have you seen Orion lately?The next few months will be the best for seeing this familiar constellation as it rises continually earlier in the night. However, Orion's stars andnebulas won't lookquite as colorful to the eye as they do in this fantastic camera image.In the featured image, Orion was captured by camera showing its full colors last month over a Brazilian copal tree from Brazil's Central-West Region.Here the cool red giantBetelgeusetakes on a strong orange hue as the brightest star on the far left.Otherwise, Orion's hot blue stars are numerous, withsupergiant Rigel balancing Betelgeuse at the upper right, Bellatrix at the upper left, andSaiph at the lower right.Lined up in Orion's belt (bottom to top) areAlnitak, Alnilam, and Mintaka all about 1,500 light-years away, born of the constellation's well studiedinterstellar clouds.And if a "star" toward the upper right Orion's sword looks reddish and fuzzy to you, it should.It's the stellar nursery known as the Great Nebula of Orion.
2019年09月30日
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