彗星

天文·每日一图

双子座方向的罗塞塔彗星

2021年11月13日 Rosetta’s Comet in Gemini Image Credit & Copyright: Rolando Ligustri (CARA Project, CAST) Explanation: Returning along its 6.4 year orbit, periodic comet Churyumov-Gerasimenko (67P) is caught in this telescopic frame from November 7. Sweeping past background stars in the const […]

天文·每日一图

彗星与螃蟹

2021年10月22日 A Comet and a Crab Image Credit & Copyright: Jose Mtanous Explanation: This pretty field of view spans over 2 degrees or 4 full moons on the sky, filled with stars toward the constellation Taurus, the Bull. Above and right of center in the frame you can spot the faint fuzzy reddish

天文·每日一图

罗塞塔彗星进入视野

2021年9月10日 Rosetta’s Comet in View Image Credit & Copyright: Rolando Ligustri (CARA Project, CAST) Explanation: Faint comet Churyumov-Gerasimenko (67P) sweeps past background stars in the constellation Taurus and even fainter distant galaxies in this telescopic frame from September 7. Abo

天文·每日一图

2020年日全食

2021年01月07日 Total Solar Eclipse 2020 Image Credit & Copyright: Miloslav Druckmuller, Andreas Moller, (Brno University of Technology), Explanation: Along a narrow path crossing southern South America through Chile and Argentina, the final New Moon of 2020 moved in front of the Sun on December 14

新闻

十月观星指南(2020.10)

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

天文·每日一图

泛星彗星与星系

2020 June 6 Comet PanSTARRs and the Galaxies Image Credit & Copyright: Dan Bartlett Explanation: Comet PanSTARRs, C/2017 T2, shared this stunning telescopic field of view with galaxies M81 and M82 on May 22/23. Of course, the galaxies were some 12 million light-years distant and the comet about

天文·每日一图

史汪彗星的离子彗尾

2020 April 29 The Ion Tail of New Comet SWAN Image Credit & Copyright: Gerald Rhemann Explanation: Newly discovered Comet SWAN has already developed an impressive tail. The comet came in from the outer Solar System and has just passed inside the orbit of the Earth. Officially designated C/2020

天文·每日一图

双星团与彗星

2020 January 30 Two Clusters and a Comet Image Credit & Copyright: Rolando Ligustri (CARA Project, CAST) Explanation: This lovely starfield spans some four full moons (about 2 degrees) across the heroic northern constellation of Perseus. In telescopic exposures made during the nights of January

天文·每日一图

星际空间来的博里索夫彗星

2019 December 14 Interstellar Comet 2I/Borisov Image Credit: NASA, ESA, and D. Jewitt (UCLA) et al. Explanation: From somewhere else in the Milky Way galaxy, Comet 2I/Borisov is just visiting the Solar System. Discovered by Crimean amateur astronomer Gennady Borisov on August 30, 2019, the first kno

新闻

哈勃观测到第一个系外彗星

哈勃于2019年10月12日拍摄到了距离地球4.2亿公里的鲍里索夫彗星(2I/Borisov),这是这颗彗星迄今为止最清晰的照片。哈勃望远镜揭示了它周围的尘埃;它正朝着太阳落下,将在2019年12月7日到达最近点,届时它将距离太阳两倍日地距离(约3亿公里)。之后它将以双曲线路径绕过太阳,返回星际空间。 Credit: NASA, ESA and D. Jewitt (UCLA) NASA哈勃太空望远镜展示了星际访客鲍里索夫彗星最好的一张照片,其速度和轨迹表明,它来自我们太阳系外。 鲍里索夫彗星是已知通过太阳系的第二个星际天体。2017年,人类发现的第一个星际游客(被命名为奥陌陌,’

滚动至顶部