- 2.25.04 Jupiter Sketch -

Hi,

I had excellent conditions tonight for observing Jupiter. I also had a chance to try a new filter called a NPC from Sirius Optics.

The festoon activity in the EZ was really interesting.

The NEB presented a dark rift that appeared to run its entire length.

The SEB was split by a dark rift that also ran its length. This rift appeared to be split on the preceding side though I still don't seem absolutely sure about this regarding my rendition of it. Sometimes the split appeared very light in color.

The STB was the most interesting by far. It appeared thick and somewhat rope-like with a break on the preceding side.

This was one of the best views so far. Usually I use a nebula filter which makes Jupiter appear intensely green. The NPC is very neutral in appearance and showing roughly true colors.

Thanks, Sol Robbins

Attached Image:

Sol,

Another excellent observation of Jupiter showing much detail.The STB oval (BE?) is clearly visible. The SEB appears divided and interesting as you point out. The NEB abd NEB-S festoons look interesting as well. The Sirius NPC filter sounds like a good one for use on the planets. Please keep up the good work.

Nice sketch,much better than mine taken around the same time lots of detail,I also noticed how dark the STD was it did look like a knoted robe,strangly my green #56 filter seemed to show Jupiter best at 171x with my 7mm UO ortho,usually lt. yellow or mv-1 does the best job.