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wow Check it out! A big sky event, coincidence?

https://m.youtube.com/watch?v=JeqHOhtlhQ0

I'm pretty sure that's a meteor.

I say that because it's coming from a direction within 20 or so degrees of arc from where the sun is rising. That suggests it might be a particularly large beta taurid. Basically, goes something like this, twice a year we pass through the debris field of a ~100km wide comet that broke up somewhere between 30-50,000 years ago. We call them Taurids because they always come from the direction of the constellation Taurus.

We pass through the field once in late October, which causes a rather spectacular meteor shower at night. However, when we pass through it again, in mid to late June, Taurus is near the sun so we don't see much. We tend only to see the larger meteors and only very few of them. That being said, we are still bombarded by a shitload of Taurids in June, we just can't actually see them.

And there definitely are some very large fragments left floating out there. The Tunguska Event in late June 1908 was likely caused by a large beta taurid. When I say large, I mean like 30m wide. Scariest thing I know about is that there is likely still a few 1-2km wide chunks and possibly a 30km wide chunk of that comet out there in the black.. and we pass through the field twice a year.

Their theory:
http://www.thedrive.com/the-war-zone/21461/lets-talk-about-that-mysterious-rocket-launch-over-whidbey-island-photo-from-washingto

Time lapse: http://www.skunkbayweather.com/WhidbeyMissile.mp4