保护地球，探索宇宙，发现文明
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-yea...
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 — spann...
2021年06月25日 Andromeda in a Single Shot Image Credit & Copyright: Miguel Claro (TWAN, Dark Sky Alqueva) Explanation: How far can you see? The Andromeda Galaxy, 2.5 million light years away, is the most distant object easily seen by the unaided eye. Other denizens of the night sky, like stars, clusters, and nebulae, are typically hundreds to thousands of ...