前のトピックを表示 :: 次のトピックを表示 |
投稿者 |
メッセージ |
Robert J Cobain
登録日: 2006.04.25 記事: 79
|
日時: Fri Jan 03, 2020 5:31 am 記事の件名: 31st Dec 2019 Fireball with exceptional speed |
|
|
The combination of brightness and angular velocity of this meteor is unique to me, does anyone have anything similar? The AV was analysed to be 36.03 degrees/sec and mag -4.2, class Sporadic. Robert.
説明: |
|
ファイルサイズ: |
51.13 KB |
閲覧数: |
3573 回 |
|
説明: |
|
ダウンロード |
ファイル名: |
End2019Spo.mp4 |
ファイルサイズ: |
2.05 MB |
ダウンロード回数: |
322 回 |
|
|
トップに戻る |
|
|
SonotaCo Site Admin
登録日: 2004.08.07 記事: 12687 所在地: 139.67E 35.65N
|
日時: Sat Jan 04, 2020 9:03 am 記事の件名: Re: 31st Dec 2019 Fireball with exceptional speed |
|
|
Robert J Cobain wrote: | The combination of brightness and angular velocity of this meteor is unique to me, does anyone have anything similar? The AV was analysed to be 36.03 degrees/sec and mag -4.2, class Sporadic. Robert. |
Hi Robert
Thank you for sharing the video and the information.
The figure below shows radiant and Vg of our 241 meteors between 20191230_08:55(UT) - 20200101_21:08(UT).
It seems there is no abnormal concentration.
In this period, the maximum Vg that is equal to the escape velocity from the Sun is around 71km/sec.
Its angular velocity can be 39.0 degrees/sec (=2*arctan (71/2/100))
So I think, if one has luck enough, 36.03 degrees/sec can be caused by objects in the solar system.
Happy new year!
SonotaCo
説明: |
|
ファイルサイズ: |
38.71 KB |
閲覧数: |
3542 回 |
|
|
|
トップに戻る |
|
|
Robert J Cobain
登録日: 2006.04.25 記事: 79
|
日時: Tue Jan 07, 2020 6:06 am 記事の件名: |
|
|
Happy new year to you too!
Thanks for the feedback, I was hoping that with the recent appearance of two interstellar objects recently that it was time for some interstellar meteors
|
|
トップに戻る |
|
|
|