| Observer |
|
Name |
Akemi H |
|
Experience Level |
2/5
|
|
Remarks |
体感時間が長かったが、実際は5秒以内かもしれません。だが何度か見かけた火球より見える時間が長くて、最後の発光が強く大きかったのは確かです。 |
| Location |
|
Address |
松本市, 長野県 (JP) |
|
Latitude |
36° 12' 31.46'' N (36.208739°)
|
|
Longitude |
137° 57' 53.91'' E (137.964976°)
|
|
Elevation |
596.49646m |
| Time and Duration |
|
Local Date & Time |
2020-02-04 19:01 JST
|
|
UT Date & Time |
2020-02-04 10:01 UT
|
|
Duration |
≈7.5s
|
| Direction |
|
Moving direction |
From up to down |
|
Descent Angle |
180° |
| Moving |
|
Facing azimuth |
279.52° |
|
First azimuth |
278.02° |
|
First elevation |
75° |
|
Last azimuth |
279.52° |
|
Last elevation |
30° |
| Brightness and color |
|
Stellar Magnitude |
-8 |
|
Color |
橙色, 黄色, 薄黄色 |
| Concurrent Sound |
|
Observation |
No |
|
Remarks |
- |
| Delayed Sound |
|
Observation |
No |
|
Remarks |
- |
| Persistent train |
|
Observation |
No |
|
Duration |
- |
|
Length |
- |
|
Remarks |
- |
| Terminal flash |
|
Observation |
Yes |
|
Remarks |
細く白い光から増光し、最後急激に黄色〜橙色に強く大きく発光し消えた。 |
| Fragmentation |
|
Observation |
No |
|
Remarks |
- |
