按月归档: 9 月 2022

俄勒冈海岸的海与天之辉光

2022年9月4日 Sea and Sky Glows over the Oregon Coast Image Credit & Copyright: Rudy Montoya Explanation: Every step caused the sand to light up blue. That glow was bioluminescence — a blue radiance that also lights the surf in this surreal scene captured in mid-2018 at Meyer’s Creek Beach in Oregon, USA. Volcanic stacks dot the foreground sea, ...

太阳、月亮与国际太空站

2022年9月3日 Sun and Moon and ISS Image Credit & Copyright: Wang Letian (Eyes at Night), Jin Ma (Beijing Planetarium) Explanation: On August 25 Sun and Moon could both be seen in planet Earth’s daytime skies. And so could the International Space Station. The ISS crossed the disk of the waning crescent Moon as seen from Shunyi district, Beijing, China...

陨石坑农场

影像来源:NASA/JPL 在一张名为“陨石坑农场”的麦哲伦图片中,我们看到了火山活动和撞击坑的奇特分层。 这张金星表面的三维透视图显示了三个撞击坑。图像的中心位于拉维尼亚平原西北部,大约南纬27度,东经339度。 科学家/工程师对这张图片的看法: “我记得当我第一次看到麦哲伦任务初期的新闻稿图片时,该地区被非正式地称为’陨石坑农场’。我可以从那张照片中看到金星有一些很奇怪的地方。即使这张照片是90年代初拍摄,但是现在看起来还是很奇怪。陨石坑农场的图像显示了这些看起来非常原始的陨石坑,它们叠加在火山背景上,完全没有覆盖到陨石坑的边缘。 至少在这张照片中,当金星被陨石坑覆盖时,所有这些发光的火山活动不知何故停止了。当然,这不应该是一个合理的行星历史;火山活动应该停止,陨石坑应该继续存在——...

陨石坑农场

Three impact craters are displayed in this three-dimensional perspective view of the surface of Venus taken by NASA’s Magellan, the first deep space probe launched by a space shuttle. The center of the image is located at approximately 27 degrees south latitude, 339 degrees east longitude in the northwestern portion of the Lavinia Planitia region of Ve...

观星指南(2022年9月)

九月份的天空会发生什么?火星在移动,木星的最佳观测时间,以及一个在秋分点寻找方位的巧妙方法。

M51:涡状星系

2022年9月2日 M51: The Whirlpool Galaxy Image Credit & Copyright: Fabian Neyer Explanation: Find the Big Dipper and follow the handle away from the dipper’s bowl until you get to the last bright star. Then, just slide your telescope a little south and west and you’ll come upon this stunning pair of interacting galaxies, the 51st entry in Charles...

詹姆斯·韦伯太空望远镜首次拍摄遥远世界的直接图像

编者按:这篇文章重点介绍了韦伯科学进展的图片,这些图像尚未通过同行评议。 天文学家首次使用NASA的詹姆斯·韦伯太空望远镜拍摄系外行星的直接图像。这颗系外行星是一颗气态巨行星,这意味着它没有岩石表面,不适合居住。 通过四个不同的滤光器看到的这幅图像,展示了韦伯强大的红外探测能力如何轻松捕捉太阳系以外的世界,为未来的观测指明了方向,这些观测将揭示更多系外行星的信息。 这张图像显示了系外行星HIP 65426 b在不同的红外波段,如詹姆斯·韦伯太空望远镜所见:紫色显示NIRCam仪器在3.00微米处的视图,蓝色显示NIRCam仪器4.44微米处的视图,黄色显示MIRI仪器11.4微米处的视图,红色显示了MIRI仪器15.5微米处的MIRI仪器视图。由于不同的韦伯仪器捕获光的方式,这些图像看起来不同。每台仪器中都有一...

郁金香星云与天鹅座X-1

2022年9月1日 The Tulip and Cygnus X-1 Image Credit & Copyright: Peter Kohlmann Explanation: Framing a bright emission region, this telescopic view looks out along the plane of our Milky Way Galaxy toward the nebula rich constellation Cygnus the Swan. Popularly called the Tulip Nebula, the reddish glowing cloud of interstellar gas and dust is also found in ...

詹姆斯·韦伯太空望远镜第一批全彩图像可听化合集

1、Webb’s Cosmic Cliffs Sonification 2、Webb’s Cosmic Cliffs Sonification: Sky 3、Webb’s Cosmic Cliffs Sonification: Mountains 4、Webb’s Cosmic Cliffs Sonification: Stars 5、Webb’s Southern Ring Nebula Sonification 6、Webb’s Southern Ring Nebula Sonification: Near-Infrared 7、Webb’s Southern Ring Nebula Sonification: Mid-Infrared 8、Webb’s Exoplanet WASP-96 b Sonifi...

蝎虎座的恒星比星系更耀眼

A little-studied star, TYC 3203-450-1, upstages a galaxy in this Hubble Telescope image from December 2017. Both the star and the galaxy are within the Lizard constellation, Lacerta. However, the star is much closer than the much more distant galaxy. Astronomers studying distant objects call these stars “foreground stars” and they are often not very happy ab...