For the Saturn experts: Seeliger Effect

kinetic (Steve) · #1 07-03-2009, 04:13 PM

Hi,

Just a quick note, I found this topic recently in another forum.
This effect is a brightening due to opposition.

Are any of the Saturn imaging experts (Bird, Trevor B etc) aware of
this and keeping an eye out for it? Opp'n on the 8th?

Here is cut and paste of Chris Go's from the Phillipines about it
along with a link to his recent images:

regards,
Steve

quote>

Seeing was excellent this evening. Just had to image the Seelinger effect.

Good seeing allowed me to get a lot of details in Saturn's disk. Note the white spot at the STZ after the CM. Is this the "dragon" remnant? Note Tethys just below the ring on the left and Rhea on the left.

The Seelinger effect is more pronounced in the monochrome luminance image below. This opposition effect will peak on the 8th!! You can see the brightness difference between Saturn's disk and ring in the last 3 imaging session on this page.

http://saturn.cstoneind.com

Regards,
Chris

< end quote

Dennis · #2 07-03-2009, 04:16 PM

Ahem, in view of the recent furore on spelling, I think you meant to write “Seeliger effect”?

Cheers

Dennis

matt · #3 07-03-2009, 04:17 PM

Dennis is right. It's known as the Seeliger, not 'Seelinger' effect.

Dennis · #4 07-03-2009, 04:19 PM

What I don’t know, is if my grammar is correct – I’m a dunce at that! LOL!

Cheers

Dennis

Dennis · #5 07-03-2009, 04:21 PM

No cleverness here Steve – I read the post by Chris Go correcting his own typo!

Cheers

Dennis

matt · #6 07-03-2009, 04:25 PM

Quote:

Originally Posted by kinetic

guys....it's corrected, lets not let it descend into an off topic, angst ridden
tragedy...I'll delete my posts if you delete yours, and it's back on topic

Steve

What are you on about?

No-one's descending anywhere.

All is good.

bird (Anthony Wesley) · #7 07-03-2009, 04:28 PM

Hi guys, yes this is an effect that happens every year at opposition... we'll be watching for it, it should be visible from now on for a few days. The rings should appear brighter than usual.

cheers, Bird

Dennis · #8 07-03-2009, 04:32 PM

Yep - all is good and a very interesting phenomena Steve, thanks for posting about it. It seems the guy also had a lunar crater named after him.

Cheers

Dennis