[Quark (Trevor)]

Originally Posted by John Hothersall

The red channel is amazingly detailed, it must have warmed your heart to see that on screen when focused. The red ringed oval in NEB is an unusual feature, noticed the 2 very bright spots in the IR SEB. Weather is monsoon rain for me over next month it looks like - Oh Well.

John.

Thanks John, the bright spots in the IR may well be indication of a new wave of activity that will hopefully lead to the completion of the SEB revival.

Originally Posted by Terry B

Very nice.
What do you use the IR channel for?

Thanks Terry, IR is obviously very important to Astronomy in deep sky imaging, Andrea Ghez used it to great effect in her pioneering work on Sag A*(the super massive black hole at the centre of our galaxy). IR is also very useful with the planets. Jup emits more energy that it obsorbs from the Sun so is also an IR target. It is very revealing to blink an RGB & IR data set of Jupiter. In IR some of the visible light detail dissapears while IR high lights detail and structure that is not so apparent in visible light. The IR that I use is 807nm+ so I am accessing part of the spectrum outside the very narrow band of visible light. The 3 red spots, GRS, Oval BA and the LRS in the NNTrZ are very prominent in IR while the red barges in the NEB dissapear in IR. IR picks out the very energetic cells of greatest activity that are driving the SEB revival. It is another tool along with UV and CH4 that are available to planetary imagers. IR also is very beneficial in so far as it is less effected by "our" atmosphere than is visible light. In times of very ordinary seeing the IR can still deliver quite acceptable results.
Sorry for being so long winded. Hope this helps.

Originally Posted by DavidU

My my, what a bunch of nice images.
Nice one Trev

Thanks very much David.

Originally Posted by Troy

Good pictures Trevor,
the SEB looks fantastic lots of stuff happenig in this band well done

Thanks very much Troy.