Jupiter + Io Morning of April 30th

[Quark (Trevor)]

Hi All,
Been so much happening on Saturn that I have only just finished processing my Jupiter avi's from the morning of April 30th.

The seeing was about 6/10, no where near as good as it was before midnight for the Titan shadow transit.

All R, G & B channels were 45 sec captures at 30 fps and 1/30th sec exposure.

The only descent Jupiter images I have seen this apparition were from Lester but this is my best effort to date.

Thanks for looking
Regards
Trevor

[davidpretorius]

Well done Trevor. Yes Lesters were very nice and Stefan Buda has just processed a very good one too.

What is your setup ie scope / camera....( excuse my ignorance )

[Kevnool (Kev)]

Great image Trev.
Theres plenty of detail there.
Cheers Kev.

[Lester]

Nice image there Trevor. The next good conditions must be getting closer. And then I will not be able to compete with your setup.

[Quark (Trevor)]

Originally Posted by Lester

Nice image there Trevor. The next good conditions must be getting closer. And then I will not be able to compete with your setup.

Thanks Lester, some of your earlier images of Jupiter, this apparition, were outstanding. I think you underestimate your ability and equipment. I think you have been producing some top stuff, it really does depend on the seeing.

Originally Posted by Kevnool

Great image Trev.
Theres plenty of detail there.
Cheers Kev.

Thanks Kev

Originally Posted by davidpretorius

Well done Trevor. Yes Lesters were very nice and Stefan Buda has just processed a very good one too.

What is your setup ie scope / camera....( excuse my ignorance )

Thanks David, I have a 16" F4.5 Newt that is highly modified. It is on a German Equatorial mount, designed and built by me. The scope is in a two storey observatory, designed and built by me in my backyard.

The scope has a 27 point primary mirror cell and a JMI Moto Focus.
The mount has an Annsen Technologies dual axis drive and drive corrector by Peter Melander. Recently I built a Peltier cooling system for my primary mirror. I posted a detailed report on that on the ATM forum, I think you posted a comment on that thread.

I use a DMK 21AU04 CCD, an Orion filter wheel with Astronomic RGB filters.

[iceman (Mike)]

Looking nice, Trev. A fine image. Io looks 3D on the limb.

Probably could increase contrast on the disk a little more by dropping the gamma or curves.

I've captured that same region this morning.

[iceman (Mike)]

Trev
Here's a 2 minute process in photoshop.

Curves, saturation, despeckle, a bit of high pass filter, and moved the red channel up 1 pixel (it was misaligned).

It looks better to me, but it could be personal preference. What do you think?

[Quark (Trevor)]

Originally Posted by iceman

Trev
Here's a 2 minute process in photoshop.

Curves, saturation, despeckle, a bit of high pass filter, and moved the red channel up 1 pixel (it was misaligned).

It looks better to me, but it could be personal preference. What do you think?

Thanks Mike, definitely an improvement and I do appreciate your input.
Of late I have not been using photoshop, finishing my processing regime in Astra Image, thanks for reminding me of its virtues.

Regards
Trevor

[Quark (Trevor)]

Originally Posted by iceman

Trev
Here's a 2 minute process in photoshop.

Curves, saturation, despeckle, a bit of high pass filter, and moved the red channel up 1 pixel (it was misaligned).

It looks better to me, but it could be personal preference. What do you think?

Hi again Mike,

Just reprocessed the same image, as I normally would, then finished it off in CS4. Have attached the original and post CS4 version.
What do you think?

Cheers
Trevor

[iceman (Mike)]

Definite improvement, Trevor!

Nice work. Io looks heaps better.