标签: M81

星系大战: M81与M82

2023年1月20日 Galaxy Wars: M81 and M82 Image Credit & Copyright: Andreas Aufschnaiter Explanation: The two dominant galaxies near center are far far away, 12 million light-years distant toward the northern constellation of the Great Bear. On the right, with grand spiral arms and bright yellow core is spiral galaxy M81. Also known as Bode’s galaxy, M8...

星系M87、喷流与著名黑洞

2021年04月15日 The Galaxy, the Jet, and a Famous Black Hole Image Credit: NASA, JPL-Caltech, Event Horizon Telescope Collaboration Explanation: Bright elliptical galaxy Messier 87 (M87) is home to the supermassive black hole captured by planet Earth’s Event Horizon Telescope in the first ever image of a black hole. Giant of the Virgo galaxy cluster about ...

M81

2021年03月12日 Messier 81 Image Credit & Copyright: Wissam Ayoub Explanation: One of the brightest galaxies in planet Earth’s sky is similar in size to our Milky Way Galaxy: big, beautiful Messier 81. Also known as NGC 3031 or Bode’s galaxy for its 18th century discoverer, this grand spiral can be found toward the northern constellation of Ursa...

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 14 light-minutes away, seen in planet Earth’s sky towa...

M81和M82的星系大战

2020 May 15 Galaxy Wars: M81 and M82 Image Credit & Copyright: Dietmar Hager, Torsten Grossmann Explanation: These two galaxies are far far away, 12 million light-years distant toward the northern constellation of the Great Bear. On the left, with grand spiral arms and bright yellow core is spiral galaxy M81, some 100,000 light-years across. On the righ...

阿特拉斯彗星与大星系

2020 March 21 Comet ATLAS and the Mighty Galaxies Image Credit & Copyright: Rolando Ligustri (CARA Project, CAST) Explanation: Comet ATLAS C/2019 Y4 was discovered by the NASA funded Asteroid Terrestrial-impact Last Alert System, the last comet discovery reported in 2019. Now growing brighter in northern night skies, the comet’s pretty greenish co...