Comets
73P/Schwassmann-Wachmann 3
 |
28th April, 2006 Coventry, UK. Captured with a Meade DSI colour CCD camera. Fragment B. The night was very misty as can be seen from the image. This image is made up of 50 X 4 second exposures captured with the Meade DSI colour camera on my 222mm f/7.9 Newtonian with a .5 focal reducer. I was very surprised at the speed this fragment traveled in such a short time. The next 5 images show just how far it did travel in around 50 minutes. |
|||
23.42UT  |
23.43 UT
 |
23.40 UT
 |
00.15 UT
 |
00.30 UT
 |
 |
23.11 UT 4th May, 2006 Coventry, UK. This is a series of 50 images at 11 seconds each. Again it was misty which seems to be a normal state of affairs these days. Images captured in .bmp format and stacked in Registax. |
 |
23.24 UT 4th May, 2006 Coventry, UK. This again is a series of 50 images at 15 seconds each. Seems I have "dust bunnies" somewhere in the optical train. |
 |
This is a stack of the above 2
images which shows just how far the comet travels in a very short
time. This shows the dust on the chip or 135 mm lens even better
which reuins a nice image. |
 |
Here I have tried to get rid of
the "dust bunnies" using Gimp but I did not have too much
success. I tried the idea of duplicating the layer, then
blurring the top layer so that no stars or comet was seen. Then
subtracting the blurred image from the comet image. |
|
Here is version 2. Having seen this dust donut or whatever "pet name" you have for these little pest I had to do something about it so here I made a synthetic dark frame using iPrep. This image I used the subract feature of Gimp to try and get rid of the dust bunnies. |
 |
Here is version 3. In this image I used the same dark frame but this time I used the Difference feature to try and get rid of the dust bunnies. |
 |
20060505.94 Birdingbury, (Rugby) UK Fragment C 10X60 + 5X120 seconds. 60mm OG HX516 CCD camera. |
 |
20060505.94 Birdingbury, (Rugby) UK Fragment C 10X60 + 5X120 seconds. 60mm OG HX516 CCD camera. Image inverted. |
 |
23:00 UTC 2006/4/27 Binley, UK cometBa is fragment B. Taken with a Canon 350D, 1600 ISO, 500mm at F/8, 30secs. |
 |
23:00 UTC 2006/4/27 Binley, UK cometca is fragment C. 4 frames together and took the green channel to produce the final pictures. |
Please use your back button or use the Site Navigation menu below.
Home
Calendar
Sky Notes
Sky Map
Light Pollution
Quiz Time
Members Images
Latest News
Off site links