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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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2019-04-09
2019年04月09日:月掩土星-(Moon Occults Saturn)
2019年04月09日:月掩土星-(Moon Occults Saturn)--原图下载{mtitle title="月掩土星"/}Image Credit & Copyright: Cory Schmitz说明: 土星偶而会消失匿迹。然而它不是真的不见了,只是月亮移到它前方,暂时遮住它而且。不过发生在上个月底的月掩土星事件,只有在巴西到斯里兰卡的狭长区域才得见。上面这幅彩色主题影像,数位融合了在红、绿和蓝等波段拍摄的事件里最清晰的影格,以及分别拍摄的土星和相对明亮的月盘。这些影像摄于南非,时值月掩土星发生及日出之前。当土星将近2小时后,复现于月亮的另一侧之时,旭日早已东升。在今年,月掩土星几乎每个月都会发生,较令人惋惜的是,只有位在特定区域和拥有清朗天空的幸运儿才得见。{lamp/}原文:{mtitle title="Moon Occults Saturn"/}Image Credit & Copyright: Cory SchmitzExplanation: Sometimes Saturn disappears.It doesn't really go away, though, it just disappears from view when our Moon moves in front. Such a Saturnian eclipse was visible along a small swath of Earth -- from Brazil to Sri Lanka -- near the end of last month.The featured color image is a digital fusion of the clearest images captured by successive videos of the event taken in red, green, and blue, and taken separately for Saturn and the comparative bright Moon. The exposures were taken from South Africa just before occultation -- and also just before sunrise.When Saturn re-appeared on the other side of the Moon almost two hours later, the Sun had risen.This year, eclipses of Saturn by the Moon occur almost monthly, but, unfortunately, are visible only to those with the right location and with clear and dark skies.
2019年04月09日
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2018-08-27
2018年08月27日:汽球上见到的日全食影子-(Total Solar Eclipse Shadow from a Balloon)
2018年08月27日:汽球上见到的日全食影子-(Total Solar Eclipse Shadow from a Balloon)--原图下载{mtitle title="汽球上见到的日全食影子"/}Image Credit: Kuaray Project, NASA Eclipse Ballooning Project, Brasilia Astronomy Club, Montana State U.说明: 2017年美国大日食期间,你人在何处?离上星期的一年前,北美洲有超过1亿人走出户外,去观赏日偏食 ,而在同一期间里,有超过1千万位在美国各地的人们,见到了太阳完全消失在月盘后头的日全食。据估据,有百分之八十八的美国成年人,要么直接要么透过转播见到此次日食。此次日食,是人类历史上有最多影像记录的事件之一,日食影像 的摄影平台涵盖一些颇不寻常的地点,甚至包括飘流在地球平流层里的汽球。这批总数约50颗的汽球,是美国航太总署日食探空汽球计画的一部分。上面的主题照片,是由从爱达荷州释放的无人汽球上拍摄的360环景影片的一个定格,参与汽球释放者包括巴西的学生及美国航太总署和蒙大拿州立大学的人员。在影像里,可见到月球的影子 掠过下方的大地。虽然全食阶段持续不到3分钟,但许多亲眼目睹者 ,可能会终生难忘。许多北美洲的居民在2024年,有机会再次见到日全食。{lamp/}原文:{mtitle title="Total Solar Eclipse Shadow from a Balloon"/}Image Credit: Kuaray Project, NASA Eclipse Ballooning Project, Brasilia Astronomy Club, Montana State U.Explanation: Where were you during the Great American Eclipse of 2017? A year ago last week, over 100 million of people in North America went outside to see a partial eclipse of the Sun, while over ten million drove across part of the USA to see the Sun completely disappear behind the Moon -- a total solar eclipse.An estimated 88 percent of American adults saw the eclipse either personally or electronically.One of the better photographed events in human history, images from the eclipse included some unusual vistas, such as from balloons floating in the Earth's stratosphere.About fifty such robotic balloons were launched as part of NASA's Eclipse Ballooning project.Featured is a frame taken from a 360-degree panoramic video captured by one such balloon set aloft in Idaho by students from Brazil in conjunction with NASA and Montana State University.Pictured, the dark shadow of the Moon was seen crossing the Earth below. Although the total eclipse lasted less than three minutes, many who saw it may remember it for a lifetime.Many North Americans will get a another chance to experience a total solar eclipse in 2024.
2018年08月27日
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2016-07-13
2016年07月13日:M7: 天蝎座的疏散星团-(M7: Open Star Cluster in Scorpius)
2016年07月13日:M7: 天蝎座的疏散星团-(M7: Open Star Cluster in Scorpius)--原图下载{mtitle title="M7: 天蝎座的疏散星团"/}Image Credit & Copyright: Roberto Colombari说明: M7是地球天空中最醒目的疏散星团之一。 外观由蓝色亮星主宰的这个星团,位在北天的天蝎座尾部;在有幽暗天空的地方,是一个肉眼可见的星团。M7大约有100颗年龄在2亿年左右的成员星,离我们约有1千光年远,跨度则在25光年上下。这张广角影像,是在巴西的Belo Horizonte市所拍摄。M7星团是个自古即知的星团,托勒密远在西元130年就曾提到它。在上面这幅影像的右下角,还可以见到一团黝黑的尘埃云,在背景中,则有数百万颗位在银河中心方向与M7并无关联的恒星。{lamp/}原文:{mtitle title="M7: Open Star Cluster in Scorpius"/}Image Credit & Copyright: Roberto ColombariExplanation: M7 is one of the most prominentopen clustersof stars on the sky. The cluster, dominated by bright bluestars,can be seen with the naked eye in a dark skyin the tail of the constellation of the Scorpion (Scorpius).M7 contains about 100 stars in total, is about200 million years old,spans 25light-years across, and lies about 1000 light-years away. The featured wide-angle image was taken near the city of Belo Horizonte in Brazil.The M7 star clusterhas been known since ancient times, being noted byPtolemy in the year130 AD. Also visible are adark dust cloud on the lower right, and, in the background, literally millions of unrelated starstowards the Galactic center.
2016年07月13日
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2016-05-10
2016年05月10日:土星、火星与银河星云-(Saturn and Mars visit Milky Way Star Clouds)
[2016年05月10日:土星、火星与银河星云-(Saturn and Mars visit Milky Way Star Clouds)--原图下载](https://apod.nasa.gov/apod/image/1605/OphiuchusPlanets_Fairbairn_1824.jpg"onMouseOver="if (document.images)document.imagename1.src='image/1605/OphiuchusPlanets_Fairbairn_annotated_960.jpg';"onMouseOut="if (document.images)document.imagename1.src='image/1605/OphiuchusPlanets_Fairbairn_960.jpg';){mtitle title="土星、火星与银河星云"/}Image Credit & Copyright: Carlos Eduardo Fairbairn ; Rollover Annotation: Judy Schmidt说明: 行星、恒星、星云和星系,这张精彩的影像全包了。其中,出现在这张主题影像上半部的二个亮橙色光斑,是离地球最近的火星 (右侧)和土星 (中心附近)。在影像中右方,可见到色彩缤纷、由泛红发射星云和泛蓝反射星云交织而成的心宿增四星云;其内则有并排在火星下方的亮橙色心宿二。在影像的右上角,可见到蓝马头反射星云;左下角,则散布着有许多绵延自我们银河系中央盘面的黝黑暗星云。这幅由多张长曝光照片组成的主题深空影像,是在上个月摄于巴西。虽然你需要使用望远镜才得见这些云气,不过在这个月的日落后往东望,用肉眼就能看到土星和火星。{lamp/}原文:{mtitle title="Saturn and Mars visit Milky Way Star Clouds"/}Image Credit & Copyright: Carlos Eduardo Fairbairn ; Rollover Annotation: Judy SchmidtExplanation: Planets, stars, nebulas and a galaxy -- this impressive image has them all.Closest to home are the two planets Mars (right) and Saturn (center), visible as the two bright orange spots in the upper half of the featured image.On the central right are the colorful Rho Ophiuchus star clouds featuring the bright orange star Antares lined up below Mars. These interstellar clouds contain both red emission nebulas and blue reflection nebulas. At the top right of the image is the Blue Horsehead reflection nebula.On the lower left are many dark absorption nebulas that extend from the central band of our Milky Way Galaxy.The featured deep composite was composed of multiple deep exposures taken last month from Brazil. Although you need a telescope to see the nebulosities, Saturn and Mars will remain visible to the unaided eye this month toward the east, just after sunset.
2016年05月10日
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2015-10-19
2015年10月19日:南天的南十字-(The Southern Cross in a Southern Sky)
2015年10月19日:南天的南十字-(The Southern Cross in a Southern Sky)--原图下载{mtitle title="南天的南十字"/}Image Credit & Copyright: Carlos Fairbairn说明: 你看过南十字吗?观看这个这个着名星座的最佳地点,是地球的南半球。在上面这幅摄于巴西.里约热内卢的主题影像里,标誌南十字的四颗亮星挂在地平线的上方。在此星座(亦名为十字架)左侧的橘红亮星,称为十字架三。垂直贯过这幅拼接影像中间的带状恒星、尘埃和云气,为我们银河系的一部分。紧贴在南十字右侧的是黝黑的煤袋星云,影像顶端的明亮星云为船底座星云。南十字是极为着名的星座,因此它也出现在澳洲的国旗上。{lamp/}原文:{mtitle title="The Southern Cross in a Southern Sky"/}Image Credit & Copyright: Carlos FairbairnExplanation: Have you ever seen the Southern Cross?This famous constellation is best seen from Earth's Southern Hemisphere.Captured from Rio de Janeiro, Brazil, the four bright stars that mark the Southern Cross are visible just above the horizon in the featured image.On the left of this constellation, also known as The Crux, is the orange star Gamma Crucis. The band of stars, dust, and gas rising through the middle of the image mosaic is part our Milky Way Galaxy. Just to the right of the Southern Cross is the dark Coal Sack Nebula, and the bright nebula at the top of the image is the Carina Nebula. The Southern Cross is such a famous constellation that it is depicted on the national flags of Australiaand New Zealand.
2015年10月19日
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