my last decent JUPITER for this season??

[Robert_T]

Hi All, I'm starting to crowd the side fence to gain a bit more Jupiter window... last night the seeing shortly after sunset was 4-5/10 for a half hour... by 7pm it went to 2/10. Here's one of the better ones. Pretty happy with it for this late stage in the season and unless something special happens seeing-wise in the next couple of weeks reckon this might be my last hurrah!

Wish I had this flip mirror and 2x Vixen barlow earlier in the season - both are excellent!!!

cheers,

[[1ponders]]

Nice shot Rob, but don't give up yet. You never know your luck in the big smoke.
You might get lucky and jag that perfect 15 minutes in a week or two ;)

[RB]

That's very nice Rob, I like it.

[iceman]

Very nice Rob!
Great to see the GRS and Red Jr again.. it's been ages since I've captured a decent joop.

The new kit is working well for you.

[John K]

Nice image Robert, well done.

[Dennis]

Hi Robert

Very nice. The seeing did pick up around midnight, but by then Jupiter had more or less gone to bed. I just processed my ToUcam avi of around 8:00pm and it was a shocker! Won't be posting it next to your great image!

Cheers

Dennis

[Lester]

Hi Robert,

Yep that is another very nice capture. Interesting to hear you say about the seeing deteriating soon after sunset. I have been experiencing that for the last month, and don't really know what to put it down to.

[matt]

Well done Rob

I remember having a chat with Bird about that seeing phenomena you've described. I've also read similar things on the www

For an hour or so just after sunset atmospheric conditions are often at their most stable.

The seeing can then get worse as the Earth begins to give up its heat to the atmosphere.

It's similar at the other end of the scale. Just before sunrise/dawn... when the bulk of that heat exchange has taken place

[Robert_T]

Thanks Guys.

Lester I reckon it has to do with the speed of temp change... just after sunset there is a sharp drop, this culd be effecting the seeing or it could just creat a lag between mirror temp and the atmosphere:shrug:

[[1ponders]]

Anthony posted a thread on determining seeing condition by Damian Peach here (http://www.iceinspace.com.au/forum/showthread.php?t=12328).

[Lester]

Hi Robert,

Yes it sounds logical. I haven't been cooling my scope either for about a month, sounds like I should get back into doing that.

[asimov]

Nice shot mate. :thumbsup: