来自MSN5 个月
Comet with 80,000-year orbit seen in Maine, offers spectacular night sky view
According to CBS News, the comet "C/2023 A3" has an 80,000-year orbit around our solar system and Saturday around noon, it was the closest it will get to our planet. Over the past week ...
scmp.com5 个月
Hong Kong skygazers capture ‘once-in-80,000-years’ comet
The comet was first discovered in images taken in January last year, by the Chinese observatory Tsuchinshan, meaning Purple Mountain. Its orbit period ... a “once-in-80,000-years sight”.
The Star5 个月
Magical night - Comet last seen by Neanderthals, almost 80,000 years ago, could be visible ...
LONDON (Bernama-PA Media/dpa): A comet that was last visible from Earth ... would last have been visible from our planet around 80,000 years ago, and was only discovered in January 2023.
Liverpool Echo1 个月
NASA reveals the year Halley's Comet will be visible from Earth again
The comet was last seen in Earth's skies in 1986, Halley’s orbit period is on average, 76 Earth years. This corresponds to an orbital circumference around the Sun of about 7.6 billion miles (12. ...
Yahoo28 天
Space photo of the week: The last view of the 'Great Comet of 2025' for half a million years
Why it's so special: Nicknamed the "Great Comet ... year. Discovered on April 5, 2024 by the Asteroid Terrestrial-impact Last Alert System (ATLAS), it is a nonperiodic comet that's traveling on an ...