My husband and I were travelling home together at approximately 5:30 p.m from Willimantic, CT to our home in Lebanon, CT. As we entered the block to our subdivision, heading North, a very large, very bright green object, like a fireball, caught my eye out of the front windshield in the Eastern/Northeastern sky. The colors were such that I immediately thought a large firework nearby. But given the winter scene, and lack of noise, I mentally ruled that out and pointed it out to my husband, who was driving the vehicle. I saw the object for about 2-3 seconds longer than my husband.
It streaked across the sky emitting, what can only be described as sparks. My husband's first thought was, "plane crash." But then, as a reference we both noted an obvious commercial plane in the sky and quickly ruled that out as the sheer size and bright green, bluish color looked nothing like the fiery orange you would expect if it were a plan exploding. Also, given the fact that this streaked in a straight-line trajectory it didn't seem like any fireworks we know nor an object that was falling to the ground. It was going sideways in the Eastern sky.
We didn't note it fade out or fall, as the bright green quickly became obscured by some cloud cover in the low sky.
The time of day was dusk and so it was still a dusk-like sky with some light. So the falling/shooting stars we routinely see at night looked nothing like this. It was the green color and sparks that really left us talking.
What is this thing? Were there any atmospheric phenomenon or routine meteor showers on this date?