NGC 206与仙女大星系的恒星云
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See Explanation. Clicking on the picture will download the highest resolution version available.
请参阅说明。单击图片将下载可用的最高分辨率版本。
2023年4月12日 NGC 206 and the Star Clouds of Andromeda Image Credit & Copyright: Howard Trottier Explanation: The large stellar association cataloged as NGC 206 is nestled within the dusty arms of the neighboring Andromeda galaxy along with the galaxy’s pinkish star-forming regions. Also known as M31, the spiral galaxy is a mere 2.5 million light-years away. NGC 206 is found right of center in this sharp and detailed close-up of the southwestern extent of Andromeda’s disk. The bright, blue stars of NGC 206 indicate its youth. In fact, its youngest massive stars are less than 10 million years old. Much larger than the open or galactic clusters of young stars in the disk of our Milky Way galaxy, NGC 206 spans about 4,000 light-years. That’s…
2022年1月19日 M31: The Andromeda Galaxy Image Credit: Subaru (NAOJ), Hubble (NASA/ESA), Mayall (NSF); Processing & Copyright: R. Gendler & R. Croman Explanation: The most distant object easily visible to the unaided eye is M31, the great Andromeda Galaxy. Even at some two and a half million light-years distant, this immense spiral galaxy — spanning over 200,000 light years — is visible, although as a faint, nebulous cloud in the constellation Andromeda. In contrast, a bright yellow nucleus, dark winding dust lanes, and expansive spiral arms dotted with blue star clusters and red nebulae, are recorded in this stunning telescopic image which combines data from orbiting Hubble with ground-based images from Subaru and Mayall. In only about 5 billion years, the Andromeda galaxy may be even…
十月会发生什么?,一轮秋月以及蓝月,火星通宵达旦和一场穿越银河系的旅行。 Credit:NASA JPL 翻译:莫辞莫问的莫、林子杰 不仅一个,在月初和月未,这个月将带来两个圆满月。十月一日的满月被称作收获月,收获月是满月的名字,它最接近九月春分。每年两天中的一天,白天和黑夜长度相等。大多数年的收获月在九月落下,但每隔几年,它就会转移到10月。这个名字可以追溯到美洲原住民和欧洲传统,与收获时间有关。 Credit:NASA JPL Credit:NASA JPL 十月底,三十一号,我们将享受第二次满月。当一个月内有两次满月时,第二个满月往往被称作蓝月,蓝月还有另外一个更为传统的定义,但这是最为人熟知的。请注意这是2020年仅有的两次满月。 Credit:NASA JPL 十月是观察火星的好时机,因为这颗行星现在一整晚都可以看到,而且会在午夜时分达到它的最高点,这段能见度极好的时期与被称为“对立”的事件相吻合,约每两年发生一次,当时火星正处于地球与太阳的相对侧,这也是火星和地球在轨道上最接近的时候,这意味着这颗红色行星在天空中是最亮的,所以不要错过它。 Credit:NASA JPL Credit:NASA JPL 来自几个国家的航天器目前正在前往火星的途中,包括美国宇航局的火星2020任务,预计在二月份降落在那里。最后,这个月,是尝试和发现仙女座星系的好时机,仙女座星系也被称为M31,是一个外观与我们银河系接近但大点的螺旋星系,二者都包含干亿颗恒星,但我们认为有万亿颗行星,现在我们看不到银河系的整体形状,因为我们在其中。如果你能从远处看到它,仙女座会让我们了解了我们的星系会是什么样子。 Credit:NASA JPL Credit:NASA JPL 仙女座很微弱,最好用望远镜观察。但是即使在光污染的地区,您也可以使用双筒望远镜甚至是装有好相机的手机进行观察,在非常黑暗的天空下,它几乎肉眼可见,虽然这可能有点挑战性,但亲眼看到整个银河系是值得的。 Credit:NASA JPL 为了寻找仙女座星系,我们需要等天黑后,望向夜空中的东北方向,找到代表女王仙后座的侧面的“ W”,仙后座的右边是仙女座,包括这一串明亮的恒星。向上看,在第二颗明亮的星星的左边,当你回头扫视仙后座时,你会发现一片微弱且模糊的光斑,那块模糊的地方就是位于200万光年之外的仙女座星系。如果你成功了,恭喜!你刚刚进行了一场星际漫游。 Credit:NASA JPL Credit:NASA JPL 这是十月的月相。 Credit:NASA JPL 你可以在nasa.gov了解美国宇航局探索太阳系及更远的所有任务,我是来自美国宇航局喷气推进实验室的普雷斯顿·戴奇斯,这就是这个月的情况。 来源: https://www.jpl.nasa.gov/video/details.php?id=1635
2020 March 27 A Little Drop of Galaxy Image Credit & Copyright: Massimo Tamajo Explanation: A drop of water seems to hold an entire galaxy in this creative macro-astrophotograph. In the imaginative work of cosmic nature photography a close-up lens was used to image a previously made picture of a galaxy, viewed through a water drop suspended from a stem. A favorite of many telescope-wielding astroimagers, the galaxy is the Andromeda Galaxy, also known as M31. About 100,000 light-years across that majestic galaxy’s spiral arms and dust lanes are curved and distorted in the image contained in the centimeter-sized droplet. Andromeda is some 2.5 million light-years distant, but this project was still carried out while spending time indoors. Tomorrow’s picture: a light-weekend 水滴里的星系 影像提供与版权:Massimo Tamajo…
时间从左边到右边,声音的频率变化从下往上,频率范围从30赫兹到1G赫兹。 这是一张星系团,名为RXC J0142.9+4438,位于仙女座,距离我们大约40亿光年,2018年8月13日由哈勃空间望远镜拍摄,音频来自NASA Video。 [rml_read_more] NASA将一张哈勃深空图像进行了可听化处理