I'm not sure how big fireballs can be. I was driving when I saw it and, in trying to find a comparison in size to the ball itself (and trying to figure out if I'd just seen a firework headed in the wrong direction) I noticed the ball of the fireball was the same size (in the sky) as the traffic light. That traffic light was about 10 feet away from me. Where I saw the potential fireball was back further down the road where it was quite dark.
Location
Address
Northbridge, MA
Latitude
42° 7' 32.59'' N (42.125719°)
Longitude
71° 38' 35.84'' W (-71.643289°)
Elevation
-
Time and Duration
Local Date & Time
2014-07-30 22:23 EDT
UT Date & Time
2014-07-31 02:23 UT
Duration
≈1.5s
Direction
Moving direction
From up right to down left
Descent Angle
225°
Moving
Facing azimuth
225°
First azimuth
225°
First elevation
45°
Last azimuth
225°
Last elevation
5°
Brightness and color
Stellar Magnitude
-9
Color
white and green
Concurrent Sound
Observation
No
Remarks
-
Delayed Sound
Observation
Unknown
Remarks
-
Persistent train
Observation
Yes
Duration
3s
Length
8°
Remarks
Glowing mostly white with green trailing behind as the white faded
