TheSkySearchers

recorded this Dec 17 -
used Dji Action One - 13 second expo - video

what ever it is flashing and bright
my guess is it was recorded for 10 to 15 minutes

I would say a plane at high altitude.
Nice clear skies though.

this was a time lapse recording - the flashing on video lasted 10 to 15 ish minutes in Real time - (no time code on cam )
I recorded it again last night
another channel I watch captured Similar type object - this is what he thinks it is satellite USA 4 15226U 1984-091A
he uses Starlight scope -

this is his video - its in real time - for some reason video on link starts video in wrong place - start at beginning of video

There are lots of satellites up there that exhibit flashing at regular intervals. That's my guess. It seems to disappear as it passes into the earth's shadow at about 19seconds. It's not at all unusual on any given night of shooting time-lapses to capture quite a few satellites.

Sat could be tumbling. The shiny side turns toward you, then away, then toward you again.

Cool. I saw something like that last month on 11/05/2022 at a star party with my AT80ED while observing Saturn. Below are my personal notes about it.

“The most interesting event occurred while I was looking at Saturn with my 12 mm (46.7x), 62 degree eyepiece. The field of view was about 1.3 degrees with this setup. At 19:50 local time, I observed a small flashing light just below (south) of Saturn. I suspected a “disco ball” type satellite liked I’ve seen before except it was barely moving. It would flash roughly for 0.1 second, every second. It stayed in the field of view for about 10 minutes. It did seem to wander rather erratically but then again it is hard to tell with a strobe type light. It very slowly wandered to the east. I grabbed one club member and a passerby of the public to take a look and confirm that I wasn’t crazy. They too saw it too! I have no idea what it was but the only logical explanation I can come up with is an high altitude weather balloon but I didn’t know they ever had strobe lights. I later found out that FAA Regulations do require high visibility strobe lights on the payloads if they are operated before sunrise or after sunset. Very cool! I am surprised that none of the group of astronomers saw it early when it would have been brightly illuminated by the setting sun.”