 |
 |
 |
 |
| Random image |
October 2005 dust storm
Comments 0
Joel_Warren |
|
 |
 |
 |
 |
|
 |
|
Home / Planets / Jupiter 23 June 2007 / Ultima-2000
Jupiter 23 June 2007 / Ultima-2000
Jupiter 23 June 2007 / Ultima-2000 by Andrew Bray
This image was taken over 2 years ago using my 8". The seeing was almost perfect. The image shows that a high quality 8" SCT can perform.
To eliminate external interference in the NexImage, the earth to the USB was cut and soldered to a block of lead mounted inside the camera. The camera was then shielded by wrapping in conducting foil that was earthed through the telescope. Presto - no noise.
Keywords: NexImage, Jupiter, Ultima2000
|
|
|
|
| Image Stats |
| Celestron Equipment |
NexImage (93712) |
| Additional Equipment |
Telescope = Ultima 2000 (8") mounted on heavy duty wedge and tripod. Flip mirror system, Ultima 2x barlow with spacer. Baader UV/IR filter. |
| Camera |
Modified NexImage (internally earthed & shielded to reduce noise) |
| Exposure Time |
|
| Software |
Amcap (Noel Danjou), Huffyuv lossless video codec, Registax 4 |
| Date/Time Taken |
06.23.2007 22:09 |
| Location |
Wantirna, Victoria, Australia |
| Upload Date: |
11.02.2009 10:01 |
| Hits: |
3076 |
| Downloads: |
10 |
| Rating: |
0.00 (0 Vote(s)) |
| File size: |
19.0 KB |
|
|
|
|
|
|
| Comments |
| | | |
Paul Delligatti
Member
Join Date: 12.04.2009
Comments 2 |
|
Amazing detail! I have the exact same set up, except for grounding and shielding done to reduce noise. I would like to know more...my images have been satisfactory; but, no where near this kind of detail. Thanks Andrew. |
|
12.05.2009 10:19 |
  |
| | | | |
spike77
Member
Join Date: 11.18.2009
Comments 249 |
|
i have a neximage on the way i cant find a reducer lens that is any good anyway could u give me some tips on useing it i have a nexstar 4 se and i think that 5mm is a little strong ur help would b great and that is a very very nice shot |
|
12.08.2009 22:40 |
 |
|
| | | |
Andrew Bray
Member
Join Date: 05.02.2009
Comments 88 |
|
Paul, I have previously posted a picture of the Ultima 2000. You'll see the stock focuser is replaced with a Feathertouch Microfocuser. This really improves performance - sharp focus is achieved within half a turn of the 1/10 focus knob. I modified the NexImage because the earth through the USB cable acts like an antenna. I always used a UV-IR blocking filter with this camera. Have a look at my CPC9.25. Each camera-barlow-flip-mirror assembly is carefully adjusted to be just right and then permanently bolted together including a quality eyepiece. With the NexImage I used Celestron's #93506 2x barlow with a spacer to increase the image scale to ~3x. A good image scale is ~6 pixels/arc sec. I also use Televue's 2.5x Powermate and 3x barlow. I accurately collimate the Ultima at 333x (it rarely needs adjusting). |
|
12.17.2009 02:52 |
|
| | | | |
Andrew Bray
Member
Join Date: 05.02.2009
Comments 88 |
|
Spike, Don't bother with the reducer lens. You actually want to increase the image scale using a quality barlow lens. A barlow is better than eyepiece projection. I haven't used a 4 inch telescope but suspect that the exposure time will become too long for Jupiter unless you use a small image scale that will limit the detail. The Moon however should be okay. The NexImage is also good for double stars. |
|
12.17.2009 04:12 |
|
|
| | | |
spike77
Member
Join Date: 11.18.2009
Comments 249 |
|
thanks i admire your images |
|
12.17.2009 08:15 |
|
| | | | | |
|
|
|
ShareThis
RSS Feed
