Reports Report 1609cl (Event 1609-2021)

Observer
Name Fionn C
Experience Level 4/5
Remarks I just have to elaborate a bit to say that I have seen many meteors, fireballs and comets over the years. This one was a once in a lifetime chance. The most awe-inspiring one I have ever seen. It was dark enough to think this light might be an aircraft approaching with it's light just sneaking through some cloud or fog and illuminating a cone of fog particles/cloud as it came. But the cone-shape stayed the same and moved exactly with the object, behind it, across the sky as I realized there was no cloud cover and dawn was approaching. The cone was large with maybe 90degrees at it's apex and 5/6/7 full moons in diameter. Then the diffuse cone slowed a bit, began to fade, and the object continued, bright as an aircraft approach light. Bright white. The diffuse cone was all white also. There were no other colors. After 10 seconds or so, a second small diffuse cone, with an apex of perhaps 15degrees, formed behind and was slowly left behind and then the object just fragmented into what reminded one of the translucent bio-luminescent head of a jellyfish, from my angle of viewing, Unbelievably spectacular. Dimensions on the order of the full moon plus. This all persisted together, travelling as one.
Location
Address Nantucket, MA
Latitude 41° 15' 8.93'' N (41.252481°)
Longitude 70° 4' 49.95'' W (-70.080542°)
Elevation 4.973192m
Time and Duration
Local Date & Time 2021-03-14 06:00 EDT
UT Date & Time 2021-03-14 11:00 UT
Duration >60s
Direction
Moving direction From down right to up left
Descent Angle 306°
Moving
Facing azimuth 191.37°
First azimuth 192.51°
First elevation 33°
Last azimuth 79.11°
Last elevation 28°
Brightness and color
Stellar Magnitude -8
Color White
Concurrent Sound
Observation No
Remarks -
Delayed Sound
Observation No
Remarks -
Persistent train
Observation No
Duration -
Length -
Remarks -
Terminal flash
Observation No
Remarks -
Fragmentation
Observation Yes
Remarks My angled view from the side made it look like the object came apart, perhaps with a small flash and spread out radially, bringing to mind the dome of a bioluminescent semi-transparent jellyfish. Very wonderful to see. All fragments persisting for 20 seconds plus. This all occurred after the initial approach which I watched for the previous 20 to 30 secs where a very large trail, cone-shaped, accompanied the object. Just fascinating!!!