Saturn April 16th NED, fair to good seeing

[Quark]

Hi All,

Imaged Saturn last night with good coverage from CMIII 260.3 through to CMIII 337.4.


During last years great storm, many times I imaged detail in 807nm IR that corresponded with active SED's regions. This morning in generally good seeing my 807nm IR data came up very well and I note that the brightest discrete spot in IR corresponds with a very bright spot within the old storm remnant. This spot was visible in the live feed of the "R" & "G" channels also and I measure its position in WinJUPOS to be approx CMIII 267.5 Lat 50.


In my processed RGB data I have the new spot well resolved, measured it in WinJUPOS to be CMIII 313 Lat 58. There are several other fainter spots and more linear structure within the old storm remnant
.

Have attached 2 RGB's & 807nm IR data sets of the 6 taken over a 2 hr 17 min session. The fine detail is well defined in my "R" channel data so I have included an animation of all "R" channels data resampled 130% along with animations at my native scale of all RGB & IR data. NOTE, the IR & R animation are largish files at about 500kb

http://www.iceinspace.com.au/uploads/s2012-04-16_tba_rgb.gif (http://www.iceinspace.com.au/uploads/s2012-04-16_tba_rgb.gif)

http://www.iceinspace.com.au/uploads/s2012-04-16_tba_ir.gif (http://www.iceinspace.com.au/uploads/s2012-04-16_tba_ir.gif)

http://www.iceinspace.com.au/uploads/s2012-04-16_tba_r.gif (http://www.iceinspace.com.au/uploads/s2012-04-16_tba_r.gif)


At first glance the IR images appear rather bland but the animation shows the movement of the bright spot I previously referred to. It seems interesting that if the new spot further South is the source of the SED's that nothing appears to show up in IR at that location.


Regards
Trevor

[DavidU]

A lovely set there Trev. Interesting watching the bright spot.
:thumbsup:

[lepton3]

Fascinating data Trevor, thanks for posting along with taking the time to explain the features.

I'm surprised at how much is going on in the R animation, yet the IR looks quite calm to me. Is this usual, or have I missed some subtle activity?

One thing for sure, there is more to the planets than just admiring the pictures.

-Ivan

[Quark]

Thanks David, with an ounce of luck the new far Nth spot will develop into a larger, brighter storm.



Thanks Ivan, the IR is a whole new ball game. Saturn is a net emitter of energy so is relatively bright in IR, obviously not as bright as in the visible reflected Sunlight that we RGB image. When there are hot spots due to SED's related storms then they can also show up in IR. The detail that we see in IR is very much more subtle than that which we see in visible light. If you concentrate on the IR animation you will see a faint spot that is related to the bright spot in the RGB that is situated near the CM at the start of the RGB animation within the old storm remnant.

Yep, for sure there is a lot more to planetary imaging than just admiring the esthetic's and that was never truer than right now with this very new SED's outbreak, hopefully a much larger storm will be sporned from this over the coming weeks.

[samilag]

Very nice Trevor
Storm details very clear with optimum image

Giuseppe

[Shiraz]

fascinating detective work Trevor and beaut images.
thanks for the info. regards ray

[asimov]

Another nice set Trevor.

[Clayton]

Very nice Trevor :)