居然发现了一个金星轨道以内的小行星, 首次

居然发现了一个金星轨道以内的小行星, 首次
arXiv:2208.07253 [pdf, other]
The discovery and characterization of a kilometre sized asteroid inside the orbit of Venus
Comments: 7 pages, 8 figures, 1 table. Published in Monthly Notices of the Royal Astronomical Society: Letters (2022). arXiv admin note: text overlap with arXiv:2009.04125
Subjects: Earth and Planetary Astrophysics (astro-ph.EP)

Near-Earth asteroid population models predict the existence of bodies located inside the orbit of Venus. Despite searches up to the end of 2019, none had been found. We report discovery and follow-up observations of (594913) 'Ayl\'o'chaxnim, 

an asteroid with an orbit entirely interior to Venus. (594913) 'Ayl\'o'chaxnim has an aphelion distance of ~0.65 au, is ~2 km in diameter and is red in colour. The detection of such a large asteroid inside the orbit of Venus is surprising given their rarity according to near-Earth asteroid population models. As the first officially numbered and named asteroid located entirely within the orbit of Venus, we propose that the class of interior to Venus asteroids be referred to as 'Ayl\'o'chaxnim asteroids.



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    posted @ 2022-08-16 18:06  zouyc  阅读(44)  评论(0编辑  收藏  举报