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討論區 => 天文新知 => 主題作者是: peter 於 2021-07-29 17:28:56



主題: 2021 英仙座流星雨 時間是原預測極大期 之後
作者: peter2021-07-29 17:28:56

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大貓分享
日本電波流星觀測組織 觀測公告 

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非預期的英仙座流星雨爆發,爆發時間是原預測極大期兩天半之後(台灣時間08/14下午五點),天頂小時數量約為原先預估的2.5倍。

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 2021英仙座流星雨英仙座流星雨是年度中最受歡迎的流星雨,出現於每年的7月17日至8月24日之間,今年極大期預估將發生在臺灣時間的8月13日凌晨3時~4時

每年在7月20日至8月20日前後出現,於8月13日達到高潮  


https://earthsky.org/astronomy-essentials/everything-you-need-to-know-perseid-meteor-shower/



主題: 回覆: 2021 英仙座流星雨
作者: peter2021-08-06 17:00:36
https://starwalk.space/zh-Hant/news/perseid-meteor-shower-2021 


主題: 回覆: 2021 英仙座流星雨
作者: peter2021-08-09 20:53:56
https://www.ettoday.net/news/20210808/2050837.htm

https://udn.com/news/story/7325/5656454 


主題: 回覆: 2021 英仙座流星雨
作者: peter2021-08-09 21:45:19
http://www.tam.museum/astronomy/forecast_detail.php?lang=tw&id=542&fbclid=IwAR3QHqrLl5C9gwq9mvusWfpa3Rvow9Si_T_U1uvQolTnY5NVGQ_uE8ohe8s


主題: 回覆: 2021 英仙座流星雨
作者: peter2021-08-12 21:50:55


https://youtu.be/B5lusR-bhzQ

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Perseid Meteor Shower2021  LIVE
https://www.youtube.com/watch?v=lm7UH6enpPo
https://www.youtube.com/watch?v=GVK1f7tBROo
https://www.youtube.com/watch?v=cqYgJNh8GIg
https://www.youtube.com/watch?v=5NHiaq4uXso
https://www.youtube.com/watch?v=GoMIg0Nan_w
https://www.youtube.com/watch?v=5NHiaq4uXso
https://live.baidu.com/m/media/pclive/pchome/live.html?room_id=4676147879&source=search

https://www.youtube.com/watch?v=nM2SNb7LJws

https://www.youtube.com/watch?v=x0n7A2-ZFPA

old
https://www.youtube.com/watch?v=Py_gzzVhFdc



主題: 回覆: 2021 英仙座流星雨
作者: peter2021-08-12 22:09:46
https://technews.tw/2021/08/12/perseid-meteor-shower/


主題: 回覆: 2021 英仙座流星雨 發時間是原預測極大期兩天半之後
作者: peter2021-08-15 09:21:54


http://www5f.biglobe.ne.jp/~hro/Flash/2021/PER/index.htm?fbclid=IwAR3tkIpZC9bOO93XiR2uSMRGZqjYWQNQUUaeg2y866GQ9czwFph7llToVws



主題: 回覆: 2021 英仙座流星雨 發時間是原預測極大期兩天半之後
作者: peter2021-08-16 14:37:54


https://familystar.org.tw/index.php?option=com_smf&Itemid=45&topic=25209.570;topicseen


主題: 回覆: 2021 英仙座流星雨 時間是原預測極大期 之後
作者: peter2021-08-16 14:59:08
https://watchers.news/2021/08/15/unexpected-large-perseid-outburst-detected-on-august-14/ 

(https://watchers.news/data/uploads/PER-h-w-update2-meteor-news-.gif)


In 2018, visual observers reported a narrow peak of Perseid shower activity around solar longitude 140.95°, about ~30 hours after the traditional Perseid maximum, with a peak of about ZHR = 25 per hour above the normal Perseid activity of ZHR ~ 45 per hour at that time (Miskotte 2019).

In 2019, a similar peak was recorded by forward meteor scatter observations collected by the International Project for Radio Meteor Observation. That year, the outburst peaked at solar longitude 141.02° with a peak ZHR ~30 per hour above normal activity (Miskotte 2020a; 2020b).

"The cause of this outburst is currently unknown but is probably the result of an unknown filament of comet debris produced by comet 109P/Swift–Tuttle as it raced through the inner solar system many centuries ago," the International Meteor Organization (IMO) said