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Four fireballs originating from the same location on the sky?

EN-98 FireballsPosted by Koen Miskotte Sat, December 12, 2015 12:55:02

On December 8 (02:46:02 UT), December 9 (02:39:22 UT), December 11 (22:06:38 UT) and December 12 (03:25:41 UT) my all sky captured four fireballs. They seems the originate from one location at the sky. I made a composition of the three brightest fireballs. see picture below.

Picture 1. Composition made of three fireballs captured on December 8 (02:46:02 UT), December 9 (02:39:22 UT), December 11 (22:06:38 UT) and December 12 (03:25:41 UT). Click on the image for a better resolution.

The three fireballs are visible as tracks which are interrupted by the rotating sector. It therefore seems that the fireballs appear to originate from the same region of the sky (so called radiant). You can see this by extending the tracks backwards. The backward extended meteor tracks intersect in an area of the sky where the radiant of the December Monocerotids lies. So it is possible that these fireballs ar December Monocorotids!

Picture 2. Crop of previous image and the radiant of the December Monocerotids. Click on the image for a better resolution.

Several CAMS stations have also recorded these fireballs and the simultaneous calculations can hopefully then give a definitive answer about the origin of these fireballs.





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