标签： NGC 4656

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天文·每日一图

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李奥纳多彗星与鲸鱼星系

2021年12月03日 Comet Leonard and the Whale Galaxy Image Credit & Copyright: Gregg Ruppel Explanation: Sweeping through northern predawn skies, on November 24 Comet Leonard (C/2021 A1) was caught between two galaxies in this composite telescopic image. Sporting a greenish coma the comet’s dusty tail seems to harpoon the heart of NGC 4631 (top) also kn...

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天文·每日一图

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彗星、鲸鱼与曲棍球棒

2021年05月13日 The Comet, the Whale, and the Hockey Stick Image Credit & Copyright: Grand Mesa Observatory, Terry Hancock / Tom Masterson Explanation: Closest to the Sun on March 1, and closest to planet Earth on April 23, this Comet ATLAS (C/2020 R4) shows a faint greenish coma and short tail in this pretty, telescopic field of view. Captured at its posit...