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View Full Version here: : Jupiter + GBS + Io & Ganymede shadow transits 01/06/05 (8 images = 220kb)


xrekcor
03-06-2005, 02:43 PM
Conditions varied during the evening but it was
generally clear. With the odd patch of cloud
interupting sessions. So it was a diffifcult task
to focus and this was about as good as I could
get it. Ganymede is out to the right, Io is next
and the last image you can make out Europa
intching in from the left.

8" f/6 Newt on an EQ5, LPI

There was some touch up's in PS mainly Levels & Curves
and a lil sharpening.

Seeing 8.5/10
Trans: 6.5-8/10

Setting were pretty much the same for all images there might
of been the odd adjustment.
Gain: 98%
Offset: 41%

30-103 Exp's @ .177 sec with x3 barlow & .250 sec with x2 barlow added

Any comment and or Q's welcome

This first one at 18:08, is a bit rough but has action.

Kindest Regards

xrekcor
03-06-2005, 02:45 PM
18:34

xrekcor
03-06-2005, 02:52 PM
...and the last two, thanks for looking. The last image here was taken just after 23:00 sometime.

iceman
03-06-2005, 03:01 PM
Great shots Rob! The last few are nice and crisp, I can see how the conditions changed during the whole event.

I can never capture the moons when they're off the planet - i have to raise the gain too high and it washes out the planet. Maybe when I get tracking I can play with the settings more.. i'll have more time to try different things :)

Well done!

You should make an animation!

ving
03-06-2005, 03:50 PM
try sacrificing a little planetary detail for some moonage mike. heaven knows you et plenty of surface detail! :)

h0ughy
03-06-2005, 04:56 PM
great shots! very nice shadow outline

xrekcor
03-06-2005, 05:01 PM
Thanks Guy's, Mike are you using the LPI?

Surface detail would/could be better for two reasons A) conditions will always determine how much you or your imager sees. Some of us get lucky and be out at the right time. B) I didn't get the chance to stack nearly enough images. My PC must of cashed during most of those captures the longest was 103.

I use the Moons as a focus add, I would imagine it would be rather difficult with a Dob. Man I find hard trying to manual focus my sucker and it's on a EQ mount with drives... I would love an electronic focuser.... one day... :evil:

regards

mahesh
03-06-2005, 10:10 PM
rob.......absolutely goooorgeeeous shots jovian shots
shadows are incredible. you've done magic man...
thanks for sharing with us
(have you / are you gonna post them on 'universe today' forum?)
best regards

mahesh

iceman
03-06-2005, 11:28 PM
I use the ToUcam, Rob.

Ving, you'll be pleased to know I got a little moonage in one of my avi's of Jupiter tonight, seeing was very good. But most of my images don't have moon unless they're close to the planet, otherwise they spend half the capture time outside of the FOV.

Won't get a chance to post them until Monday morning. I *think* they're worth the wait :)

xrekcor
04-06-2005, 07:00 AM
Mahesh,

Thanks man for your comments. I haven't heard of 'universe today' forum.

Mike,

I look forward to seeing your results.

regards

RAJAH235
04-06-2005, 09:39 PM
Rob, Nice pics.Great detail. FWIW,What kind of focuser do you have? Would it be suitable for being 'BELT' driven? If so, I can make an electric focuser for you if you want. Check with Mike & Ving for details, as I have just supplied them with one each. L.
ps. The 'Universe Today' is an info. site that you can subscribe to for all the 'latest' news via eMail.
http://www.universetoday.com

xrekcor
05-06-2005, 11:57 AM
Rajah235,

Thank you for you kind words. Yes! :D I could be interested in your focus controller. I'm sure mine is a standard cheap rack and pinion type, I've included a couple of images of it so you can see.

Do you have photo's of your controller? and what does one cost?
does it have the ability to fine focus, or is it one speed suits all?
What sort of modifications are required? Mmmmmm so many Q's lol

anyways yeah get back to me

regards

Striker
05-06-2005, 06:35 PM
Great Job Rob......very well done.

xrekcor
08-06-2005, 01:03 AM
Thanks! Tony

How's the new scope going? ready to sell it yet? lol j/k

regards