kinetic
13-10-2013, 05:42 PM
Well....these results have taken about 19 years to process :rolleyes:
In 1994 I was experimenting with mini CCD cameras at the eyepiece of my
8" homemade Newtonian.
During the week of about the 18th to 22nd July ' 94 the largest fragments
of Comet Shoemaker-Levy 9 were hitting Jupiter.
These largest impact sites were easily seen by amateurs around the world,
including myself and a friend from suburban Adelaide.
We observed them from our respective backyards and chatted via those
chunky old analogue cordless phones :)
His scope was a homemade 10" he built, inspired by my own 8".
Later in that same week I made these videos with the PCB camera at
the eyepiece in an eyepiece projection arrangement.
Composite video was recorded direct to VHS tape using my Grandpa's
old portable VHS recorder. Camera output was about 520 TV lines res
but the VHS process degrades that down to 240 TVL.
I took 4 videos, 3 with 9mm Ortho eyepiece projection and a 4th with
a 12mm.
I have no exact details of recording times except for a hand made sketch
I did on the night of the biggest impact, I think that was called G or K fragment.
19 years later I fed these VHS videos into the USB digitiser of the home PC.
Registax 6 did the rest, a crop, wavelets and rotate and histo adjust of
AVI #3 of 4 is shown here.
Also shown is the handmade sketch.
The artifact in the result is the frame edge, the highest quality AVI has
Joop right at edge of the frame.
I will attempt to process all 4 videos and post them up.
Edit: added results AVI#1 of 4, AVI# 2 of 4
shows 2 moons, maybe I can narrow down the time. Impact scar at 6oclock.
Rotation evident between videos.
Steve
In 1994 I was experimenting with mini CCD cameras at the eyepiece of my
8" homemade Newtonian.
During the week of about the 18th to 22nd July ' 94 the largest fragments
of Comet Shoemaker-Levy 9 were hitting Jupiter.
These largest impact sites were easily seen by amateurs around the world,
including myself and a friend from suburban Adelaide.
We observed them from our respective backyards and chatted via those
chunky old analogue cordless phones :)
His scope was a homemade 10" he built, inspired by my own 8".
Later in that same week I made these videos with the PCB camera at
the eyepiece in an eyepiece projection arrangement.
Composite video was recorded direct to VHS tape using my Grandpa's
old portable VHS recorder. Camera output was about 520 TV lines res
but the VHS process degrades that down to 240 TVL.
I took 4 videos, 3 with 9mm Ortho eyepiece projection and a 4th with
a 12mm.
I have no exact details of recording times except for a hand made sketch
I did on the night of the biggest impact, I think that was called G or K fragment.
19 years later I fed these VHS videos into the USB digitiser of the home PC.
Registax 6 did the rest, a crop, wavelets and rotate and histo adjust of
AVI #3 of 4 is shown here.
Also shown is the handmade sketch.
The artifact in the result is the frame edge, the highest quality AVI has
Joop right at edge of the frame.
I will attempt to process all 4 videos and post them up.
Edit: added results AVI#1 of 4, AVI# 2 of 4
shows 2 moons, maybe I can narrow down the time. Impact scar at 6oclock.
Rotation evident between videos.
Steve