Jupiter in perfect seeing, August 30 - Page 5

asimov (John) · #81 09-09-2010, 10:32 PM

Will this mean you could image longer than normal Anthony?

michaellxv (Michael) · #82 09-09-2010, 10:40 PM

That is amazing the difference it made all over the image. The best image just got better.

DavidU (Dave) · #83 09-09-2010, 10:46 PM

Very clever thinking Anthony, The results are very crisp. Well done.
I enjoy following your journey. A+ work ethic !
thanks

Quote:

Originally Posted by bird

Thanks guys.

Here's something that will be of interest to other imagers - a fairly simple way to derotate the R,G,B channels so that they align better. If you have a close look at my images above you can see the misalignment from each channel being 1 minute apart... especially around the edge.

Anyhow, I discovered that you can load the individual channels into WinJupos and do an "Image Measurement" on each of them, setting the time that they were taken, and then use the "Image Computation" to combine these and WinJupos will rotate them to all line up correctly.

WinJupos got it close, but not exactly right, so I followed it up by loading the RGB image into Astra Image, splitting the channels out and then recombining them with a couple of small alignment changes.

So here's the result of trying this out... as you see, this image has good alignment between the channels both at the edge and the centre.

cheers, Bird

bird (Anthony Wesley) · #84 09-09-2010, 11:27 PM

John, I think you're still limited to relatively short runs, otherwise the individual channels start to get blurred. I think 60 seconds is about right, but it's possible you could extend this to 90 seconds.

If you go too far then you'll start to get artifacts around the limb again due to the limitations of derotating.

cheers, Bird

iceman (Mike) · #85 10-09-2010, 07:30 AM

Fantastic Anthony, that last one looks so much better around the limb.

lcd1080 (Peter) · #86 10-09-2010, 09:56 AM

Your image causes one wonder why we Americans spent all that money on Hubble; we could have contracted the job out to you and done just as well, at least in our own Solar System

Peter

lacad01 (Adam) · #87 10-09-2010, 11:13 AM

Incredible image Anthony, so clear with heaps of detail, well done

bird (Anthony Wesley) · #88 10-09-2010, 12:00 PM

Yeah, for good images I think this extra step is worthwhile. I'll be going back over some of my old data to see if I can clean it up a bit with this help.

Quote:

Originally Posted by iceman

Fantastic Anthony, that last one looks so much better around the limb.

Spanrz (Brett) · #89 10-09-2010, 01:31 PM

Quote:

Originally Posted by lcd1080

Your image causes one wonder why we Americans spent all that money on Hubble; we could have contracted the job out to you and done just as well, at least in our own Solar System

Peter

I did post a thing on FaceBook for the IOTW. It's called "AWSA"
(Anthony Wesley Space Agency)

Phenomenal shots like this are just so "AWSA"me (awesome)

*edit* Sorry Anthony, I'm sick with a Head Cold, I just needed a good laugh!

Outbackmanyep · #90 10-09-2010, 04:38 PM

Top shelf Mr Bird!

tonybarry (Tony) · #91 10-09-2010, 08:19 PM

A great image, which shows off your hard work and dedication to your craft.

Well done.

Regards,
Tony Barry

erick (Eric) · #92 10-09-2010, 09:37 PM

Can it get any better? Yes, it can! Nice reprocess, Anthony.

sheeny (Al) · #93 10-09-2010, 09:48 PM

Absolutely glorious work Anthony! Wow!

Al.

h0ughy (David) · #94 10-09-2010, 09:53 PM

how good is your last image!!!!!!!!!!!!! WOW i would even consider that better than any hubble shot - i am in awe once again

Octane (Humayun) · #95 10-09-2010, 10:32 PM

Holy moly. WOW! The reprocess is incredible!

H

gregbradley · #96 10-09-2010, 10:45 PM

Just amazing. The best Jupiter image I have seen.

Exmouth WA, is this the spot you were searching for that would have excellent seeing in
Australia?

I take it you found it.

Greg.

Ric · #97 11-09-2010, 08:24 AM

Wonderful images Bird, absolutely spectacular.

I can see Exmouth becoming the amateur astronomers mecca with that kind of seeing.

Cheers

bird (Anthony Wesley) · #98 11-09-2010, 12:32 PM

The jetstream seems to be the determining factor for this location - being on the end of a peninsular means that the lower level seeing is very good almost every night, it comes down to the upper air (jetstream).

The last couple of weeks I've been under the strongest part of the jet just like everyone else around here, but the forward predictions show it slowing down during the next week and there are some days when it's predicted to be absent, so I'm looking forward to some more good images before I leave on the 27th.

cheers, Bird

asimov (John) · #99 11-09-2010, 01:46 PM

Having the same trouble here Anthony, only I think it's the mid & lower levels not being in 'sync' with the jetstream. What happens is, The jet is travelling east as per usual & generally so does the mid & lower levels however as soon as it strikes the coast both lower levels (but more often the case the lower) will suddenly divert north & travel up the coast line. I assume there is already a northerly low & mid stream present 'pushing' those 2 layers coming in from the west..It's all very interesting but for me, I seem to get my best seeing when these 2 layers coincide with the jet & head out to sea in an easterly direction. I've seen this happen on 3 occasions & that just happens to coincide with how many reasonable captures I've had this apparition - Funny about that..

Looking forward to your next lot of images from Exmouth!

hotspur (Chris) · #**100** 12-09-2010, 10:04 AM

Magical image!well done-must have been amazing seeing conditions.