2021 獅子座 + 73p彗星武仙座τ流星雨 2022年5月31日 流星雨可能爆發 ??
peter:
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73p彗星 2022年5月31日
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2021 獅子座
https://zhuanlan.zhihu.com/p/31181849?fbclid=IwAR3KVnUJDE5-wmXe-oibPlJNvGze-iu3Ftw1GcY-Nc40ln-eBlomJsIQICs
傳統週期外，會可能有非傳統週期的。
peter:
73p彗星 2022年5月31日
73P/Schwassmann–Wachmann
https://interesting-sky.china-vo.org/meteor-shower/re-ma-me/73p-ids2022/
此资料较老，有不确定因素
武仙座τ流星雨-73P流星雨
流星雨 zhr 有人估1萬
北京时间【下同】2022年5月31日11:11。地球将垂直遭遇到1892年至1941年的抛射物。在一次流星活动的特定时期内，预计ZHRmax高达50，亮度低。也有一些活动多达20颗流星的ZHR规模是可能的，尤其是在23:10。理论辐射点：赤经=206.7度，赤纬=26.0度，速度= 11.7公里/秒。
2022年5月31日13:15。地球将垂直的遭遇到1979-1995年的抛射物。对于给定时间段的基本模型给出的流星活动预期ZHRmax=600-700。然而，考虑到彗星73P在1995年破成了几部分，因此真正的活动应该是高于一两个数量级，ZHR估计可达10000-100000流星雨的规模，平均亮度高。理论辐射点：赤经=209.5，赤纬=28.0，速度= 12.1公里/秒。
2022年6月26日10:58。地球将垂直遭遇到1930年的抛射物。在一次流星活动的特定时期内，预期 ZHRmax=2-3，极低的亮度。理论辐射点：赤经=170.0，赤纬=-10.2，速度= 9.3公里/秒。
法国流星专家热雷米·沃巴永(Jérémie Vaubaillon)预测
peter:
73P
https://www.space.com/2396-comet-breakup-points-meteor-shower-2022.html
天劫倒數 Greenland 2020
https://zh.wikipedia.org/wiki/%E5%A4%A9%E5%8A%AB%E5%80%92%E6%95%B8
故事描述一顆彗星的碎片將對地球造成前所未有的浩劫
當科學家發現，一顆彗星的碎片將在幾天內撞擊地球，並可能導致全人類滅絕，而唯一的生存希望是位於格陵蘭，那裡有一處世上最安全的庇護所。這使平民約翰帶著妻小突破重重困境，試圖藉此生存下去。
peter:
https://sites.google.com/site/radioastronomydm2/meteors-vlf
peter:
http://www.earthriseinstitute.org/inboundcoms.html
COMET 73P/SCHWASSMANN-WACHMANN 3 (Perihelion 2022 August 25)
We may, or may not, have been seeing the break-up of this comet over the past couple of decades. During its return in 1995 (no. 202) its nucleus split into four discrete fragments as the comet itself underwent a dramatic outburst to 5th magnitude. Various fragments have been seen at most of its returns since then, including in 2006 (no. 385) when it passed within 0.08 AU from Earth and I detected three discrete "companion" comets in addition to the primary one, and over 60 nuclear fragments were detected with large telescopes. Even at the most recent return, in 2017 (no. 612), which took place under mediocre viewing geometry, one additional "companion" comet appeared which for a time was brighter than the primary component. It has already been recovered in January 2021 by the Lowell Discovery Telescope in Arizona as a very faint object near 23rd magnitude, and when near perihelion will be visible in the western evening sky, albeit more favorably placed for observers in the southern hemisphere; it may be around 11th magnitude at the time. Although this is very uncertain, there is a possibility of a strong meteor shower from this comet in 2022, with some predictions suggesting that this could occur in late May from a radiant in southwestern Bootes.
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