Observer | |
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Name | Matthew D |
Experience Level | 3/5 |
Remarks | I wish I had more I could tell you. Appeared high in the horizon, WSW, originating near Lyre/Vega (but at least 10-15° lower), extremely bright, brighter than any object I\'ve seen in the sky save the sun and full moon. I saw two smaller fragments trailing behind as it neared the horizon, and it left behind a faint, but apparent train for 2-3 seconds. It produced no boom or overt pop. The predominant color was bright emerald green. It moved somewhat slower than any other large fireball I have seen (which is about a dozen). It was magnificent. |
Location | |
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Address | St Louis Park, MN |
Latitude | 44° 57' 25.98'' N (44.957217°) |
Longitude | 93° 21' 20.8'' W (-93.355777°) |
Elevation | - |
Time and Duration | |
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Local Date & Time | 2012-09-14 21:05 CDT |
UT Date & Time | 2012-09-15 02:05 UT |
Duration | ≈7.5s |
Direction | |
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Moving direction | From up to down |
Descent Angle | 180° |
Moving | |
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Facing azimuth | 243.47864° |
First azimuth | 238.68745° |
First elevation | 80° |
Last azimuth | 246.89283° |
Last elevation | 17° |
Brightness and color | |
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Stellar Magnitude | -11 |
Color | Emerald Green, with an or |
Concurrent Sound | |
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Observation | Yes |
Remarks | - |
Delayed Sound | |
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Observation | No |
Remarks | I heard no boom, or any impact sound, during or after the fireball vanished. I did hear what sounded like a fairly deeply pitched hiss and crackle, with about a two to three second delay. |
Persistent train | |
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Observation | Yes |
Duration | 2s |
Length | 12.5° |
Remarks | It was very brief, and not extremely bright. But it was a very visible, delayed trail of light, mostly green/orange the same as the initial fireball and its trail. No smoke that I could see. It faded quickly and that was it. |
Terminal flash | |
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Observation | Unknown |
Remarks | As it neared the horizon, I was waiting for it to explode or pop, and while I saw very obvious fragments behind the main object, at least two, I saw no clear explosion or disintegration. |
Fragmentation | |
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Observation | Yes |
Remarks | - |