Jupiter - Friday, May 2, 1516UT, Brisbane

matt · #1 02-05-2008, 11:47 AM

Conditions were again unfavourable this morning.

Brisbane seems to be continually parked under the jetstream. I thought there were restrictions on how long you can remain parked in the one place. You can never find a good Jetstream Parking Cop when you need one!

Regardless...I'm on holidays...so I set up again, ignoring all the maps and evidence to the contrary.

There was plenty of wobble on the screen and detail was hard to make out during capture...making focusing tricky.

I decided to use the 2.5x Powermate instead of the 3x barlow, and I think I made the right choice. Happy with the level of detail in this one, despite the conditions and loss of image scale.

GRS looks particularly nice, with detail within. Plenty of activity on the SEB. Also in the North Polar region. Some nice wispy festoon activity in the Equatorial Zone.

Unfortunately, the processing introduced an 'onion ring' at the right limb. Ah well...

matt · #2 02-05-2008, 12:12 PM

And I went a little easier on the wavelets with this one from 15:31UT.

I prefer this one, actually.

h0ughy (David) · #3 02-05-2008, 12:25 PM

looks good to me Matt - but i am no expert

matt · #4 02-05-2008, 12:28 PM

Quote:

Originally Posted by h0ughy

looks good to me Matt - but i am no expert

Nor I...David...

iceman (Mike) · #5 02-05-2008, 02:42 PM

Excellent image, Matt. I love the second one.

Matty P (Matt) · #6 02-05-2008, 06:41 PM

Excellent image Matt especially the second one.

Keep up the great work.

Stevo69 · #7 02-05-2008, 07:54 PM

Great shot matt. Could you elaborate on the scope, equipment exposure times etc.. (for a newbie who is venturing into LPI soon)

ta

matt · #8 02-05-2008, 08:04 PM

Hi Stevo.

Scope used was a Celestron 9.25 SCT.

Captured using a ToUcam Pro II and 2.5x Powermate (as outlined in original post) and K3CCDTools (capture program).

From memory, I used 1/33 sec exposure, gain set around 30-40% (enough to bring light meter in K3CCDTools to a reading of around 220).

I captured for 90 seconds at 10fps, to produce a total of 900 frames.

These were taken into Registax 4 for aligning, stacking and mild wavelets, before post-processing in Photoshop 7 (levels, unsharp mask, saturation).

Cheers.

Robert_T · #9 03-05-2008, 07:58 AM

Hi Matt, that's a great shot, great colours and detail. Definitely the 2.5x powermate was a better choice under these conditions. Loverly

cheers, Rob

edwardsdj (Doug) · #10 05-05-2008, 12:48 AM

Great Jupiter Matt

So much detail in the GRS and the SEB.

I much prefer the second image myself.