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wenjha
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Reged: 09/24/08

Loc: SuZhou China
Re: Monster Saturn Nights April 5/6th....! new [Re: BKBrown]
      #5785307 - 04/08/13 05:59 AM

Amazing Darryl!
I am curious which one will be the best saturn though variable aimplifer?


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Kokatha man
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Reged: 09/13/09

Loc: "cooker-ta man" downunda...
Re: Monster Saturn Nights April 5/6th....! new [Re: wenjha]
      #5785502 - 04/08/13 09:29 AM Attachment (33 downloads)

Thank you very much Freddy, Zach, Brian & Sam..!

Freddy - what are you doing lately.....I haven't seen any of your first-rate imaging outcomes for quite a long time now - have you moved from Hawaii..?

Brian, I have become an advocate of "don't get too concerned over the amount of gain you use" - when you have 10000 or even 15000 or more frames to cull and stack you're not usually too worried about noise: and on the issue of noise I believe in leaving a small amount in my images usually.

And it is all "luck" in the end re the seeing, even with the great elevation Saturn is at down here these days.....we had a good first night at the ole sportsground but it would've been inviting bad luck to stay there instead of moving for that second night....!

For you folks in the Northern Hemisphere the ability to operate at fast frame-rates is one of the excellent characteristics of this particular camera - despite your low elevations I think you'll find it delivers real benefits this apparition: I hope you grab some imaging outcomes that you can be proud of also amigo....!

I discovered earlier in this apparition when the seeing and elevation was lower that these uber-fast framerates were a real bonus (well, lower elevations relatively speaking when we imaged earlier in the night, with daylight saving time now over in Oz Saturn is presently culminating at 1:45am atm - a much more "genteel" hour of the night than (say) 4:30am as it was not so long ago....! )

Sam, I think the answer to your question is very much dependant upon the seeing: you can see by looking at those "best red frames" in this thread that the largest image scale's best was pretty good, but the seeing had definitely dropped by the time we employed that scale: I might post an image using that focal length/image scale (7400mm) later, but it wasn't up to those using 6600mm which were taken around culmination in the best seeing that night.

This makes me fairly confident in saying that on a night of excellent seeing we might score some crackerjack images around opposition (still 3 weeks away! ) using this scale or close to it.....personally I think we've had a couple of nights of "very good" seeing so far this apparition but not the "excellent" we still hope for..!

Here is a red channel animation but filesize limits meant I could only post a 2-framer at 120% of capture scale with 25 minutes separating the capture times......followed by a 4-frame animation (90% of capture scale and also non reversing, due to the filesize limitations.) :(


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Kokatha man
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Reged: 09/13/09

Loc: "cooker-ta man" downunda...
Re: Monster Saturn Nights April 5/6th....! new [Re: Kokatha man]
      #5785508 - 04/08/13 09:32 AM Attachment (30 downloads)

.....the non-reversing 4 frame red animation at 90% of capture scale (the moons suffered re visibility by this filesize reduction...)

I'll post a link to another site when I've uploaded the fully-reversing 4-frame red animation at 120% of capture scale there.


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Kokatha man
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Re: Monster Saturn Nights April 5/6th....! new [Re: Kokatha man]
      #5785514 - 04/08/13 09:34 AM Attachment (26 downloads)

Lastly (for now! ) another rgb but this time from the first night when we were at our original location before we went to Langhorne Creek - quite nice seeing but not as good as at L.C.

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ToxMan
Carpal Tunnel
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Reged: 01/23/11

Loc: Tucson, Arizona, USA
Re: Monster Saturn Nights April 5/6th....! new [Re: Kokatha man]
      #5785528 - 04/08/13 09:44 AM

{{{speechless}}}

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Kokatha man
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Re: Monster Saturn Nights April 5/6th....! new [Re: ToxMan]
      #5785543 - 04/08/13 09:55 AM Attachment (23 downloads)

Quote:

{{{speechless}}}




.....I'll have to take that as a compliment Paul..?!?

I have some nice animations that'd need to be posted as a link to another site with larger filesize limits or maybe get off my backside and learn how to You-Tube them...

Also some WinJupos jobs etc.....looking again at Paul (Bunyon's) latest thread has made me do an invert of the first rgb in this thread: I've posted these before but seeing his got me inverting one of these fellas and I think they not only look cool but also inverting/creating colour negatives highlights aspects of the image from other perspectives.


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idp
sage


Reged: 08/21/09

Loc: New Haven, CT
Re: Monster Saturn Nights April 5/6th....! new [Re: Kokatha man]
      #5785576 - 04/08/13 10:23 AM

Totally awed. I loved the great details at the edge of the temperate zone. Incredible images, congratulations! I'll have to switch from eyeball to digital sooner or later

Ivano


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Gupise
super member


Reged: 01/04/13

Loc: Reggio Emilia, italy
Re: Monster Saturn Nights April 5/6th....! new [Re: idp]
      #5785787 - 04/08/13 11:50 AM

My jaw hits the ground, really
Congrats


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sfugardi
Post Laureate


Reged: 09/30/06

Loc: CT
Re: Monster Saturn Nights April 5/6th....! new [Re: Gupise]
      #5785859 - 04/08/13 12:26 PM

Mo, insane quality! The 200% image holds the detail nicely. Very impressive work. I'm still waiting for an above average seeing chance at Saturn. Thanks for posting

Regards,
Steve


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Mert
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Reged: 08/31/05

Loc: Spain, Pamplona
Re: Monster Saturn Nights April 5/6th....! new [Re: sfugardi]
      #5786451 - 04/08/13 05:17 PM

How come you continuously are improving Darryl??
You've now really set an unreachable limit for the
simple mortals like me!
By the way, contemplating these incredible images too
long wacked my laptop screen out of collimation LOL !!!!
Superstuff Darryl


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BKBrown
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Reged: 08/23/09

Loc: Northern Virginia, USA
Re: Monster Saturn Nights April 5/6th....! new [Re: Kokatha man]
      #5786462 - 04/08/13 05:23 PM

I'm with you on the gain, I often have it maxed out and just count on the numbers to help mitigate noise. I am curious as to how many frames you are collecting per channel, and at what frame rate. You probably mentioned this somewhere in the vast body of discussions in various threads lately but I would appreciate a quick recoup if you are willing Thanks!

Clear Skies,
Brian


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Yuri_18
professor emeritus
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Reged: 07/29/07

Loc: Minsk, Belarus
Re: Monster Saturn Nights April 5/6th....! new [Re: BKBrown]
      #5786886 - 04/08/13 09:17 PM

Excellent!!!

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SYH
member


Reged: 03/20/13

Loc: CHN
Re: Monster Saturn Nights April 5/6th+animations etc! new [Re: Kokatha man]
      #5786955 - 04/08/13 09:47 PM

Incomparable Saturn

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Kokatha man
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Reged: 09/13/09

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Re: Monster Saturn Nights April 5/6th+animations etc! new [Re: SYH]
      #5787264 - 04/09/13 02:01 AM Attachment (26 downloads)

Thanks very much for the kind comments Ivano, Gupise, Steve, Mert, Yuri and SYH.....Pat and I appreciate these responses to our imaging work very much!

Brian, I'm posting a few of the logs texts from these captures in the post after this one to give you an idea of what we use.....if you want to see some more just let me know..!

Also as per the edits I've signalled in the first post at the top of this thread, here is an animation of 2 rgb images from Langhorne Creek.....


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Kokatha man
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Re: Monster Saturn Nights April 5/6th+animations etc! new [Re: Kokatha man]
      #5787266 - 04/09/13 02:03 AM Attachment (27 downloads)

.....and here's those log texts Brian.

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mann
super member


Reged: 10/02/06

Loc: Aalborg,Denmark
Re: Monster Saturn Nights April 5/6th....! new [Re: BKBrown]
      #5787331 - 04/09/13 03:44 AM

2XAmazing!!

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mitovka
professor emeritus


Reged: 06/08/10

Loc: Slovakia, CE
Re: Monster Saturn Nights April 5/6th....! new [Re: mann]
      #5787506 - 04/09/13 07:31 AM

Incredible results Darryl. I wish you this kind of seeing for next 2 months at least... Or better.

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Kokatha man
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Reged: 09/13/09

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Re: Monster Saturn Nights April 5/6th....! new [Re: mann]
      #5787518 - 04/09/13 07:43 AM

Thanks Mogens - we're out in the field again right now.....promising forecasts but you just never really know!

We left pretty late this afternoon as Pat was having lunch with a girlfriend in the city, but we were pleased to have everything set up in just over half an hour tonight.....and in the dark too!

Re-applied the primary mirror locks properly before we left home tonight so we may have to search a bit to get the image on the chip and align the finderscope, and collimation will need a bit more work than usual: as I've said a couple of times I'm quite convinced that one factor working very much in our favour these days is said primary lock/mirror stabilisers.....I'm pretty convinced that C14's (or at least this one!) suffer from collimation errors due to the mirror moving ever-so-slightly when you move from the star-testing to the planet after collimation - and this doesn't happen anymore..!


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Kokatha man
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Re: Monster Saturn Nights April 5/6th....! new [Re: Kokatha man]
      #5787520 - 04/09/13 07:43 AM

Thanks also Michal!

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mikewirths
Vendor-Baja Dark Skies
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Reged: 06/16/08

Loc: San Pedro Martir Mexico
Re: Monster Saturn Nights April 5/6th....! new [Re: Kokatha man]
      #5788075 - 04/09/13 01:11 PM

Thats an insanely fantastic image Darryl!!! I think you might need a bigger scope

cheers

Mike


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