Moon, Uranus & Uranian Moons - occultation images

[Dennis]

Hello,

Well, I was pleased that some of the images from this morning’s (12:43am) occultation came out reasonably well, despite the overwhelming glare of the Moon.

I was imaging with the C9.25, ST7E and Philips ToUcam 840K and used an x2.5 Powermate to grab the colour of the disc and inject it into the B&W image from the ST7E.

It is neat being able to image our Moon, Uranus and the moons of Uranus all in one session, although not all in one frame!

Cheers

Dennis

[iceman]

Wow! :eyepop: Incredible result Dennis! I knew, given clear skies, you'd come up with something special.

Great presentation, too.. but you gotta put your name on that!

Very well done.

[middy]

Superb job Dennis. :eyepop: :clap:

Excellent presentation too, I always love the way you present these things. :thumbsup:

[RB]

omgosh Dennis what an amazing result.

Fantastic images and beautiful presentation.

:eyepop:

[h0ughy]

Mega result DUDE!

[davidpretorius]

is it possible you are simply getting better and better Dennis.

This is brilliant!

Thanks for listening to all our advice to get you where you are today!:D

[Dennis]

Thanks Dave - but you know, many a true word spoken in jest; I received bucket loads of help from guys like you, Mike and Robert when I began my ToUcam apprenticeship soon after joining IIS.

Cheers

Dennis

[janoskiss]

Superb, Dennis! :eyepop:

[xstream]

Excellent work Dennis.

A magnificent result! :thumbsup:

[[1ponders]]

Maaaaattteee!!!! :thumbsup::clap::thumbsup::clap: :bowdown:

And you guys don't know the other half of it. Seeing here last night was about -5 with a 50 knot gale blowing.


Superb Dennis, superb.

[gaa_ian]

That is Awesome Dennis, I am pleased if I can just find Uranus, Let alone image it slipping behind the moon !

[sheeny]

Wow, Dennis! What can I say? It's all been said... very impressive!:thumbsup:

Al.

[ving]

thats the second most impressive pic i have seen today!!!

(and by second i mean first!) :D

[Lester]

Absolutely superb Dennis.

[Robert_T]

Dennis that may be one of the most audacious pieces of planetary imaging ever! :eyepop: :eyepop: :eyepop: It looks fantastic - your skill in combining these various device inputs and extracting gold from astronomical lead is bordering on "spooky"

one to be especially:thumbsup: proud of...

[Dennis]

Hello,

Thank you all for those words of encouragement. At times I thought I wouldn’t get any decent images due to the huge disparity of brightness between our Moon and Uranus. Doing the maths, it appears that the Moon is over 20 million times brighter than Uranus. Here is how I did the calculation:

A magnitude difference of 1 represents a brightness difference of x2.512, so a magnitude -1 star is x2.512 brighter than a magnitude 0 star.

“Astronomy 2006” shows the full Moon as magnitude -12.74, with Uranus a pale +5.52, a difference of 18.26 magnitudes.

Therefore, the brightness difference between the full Moon and Uranus is 2.512 to the power 18.26 which is a whopping 20,153,873!

Am I doing the calculation correctly?

Thanks

Dennis

[beren]

:thumbsup: Awesome work and presentation , id love to see this in S&S/AS&t as a article :)

[h0ughy]

you lost me after a "huge disparity of brightness" then things went all hazy;) :P :rofl:

[Dennis]

Oh man - you crack me up H0ughy :rofl: :rofl:

[ballaratdragons]

Dennis,

May I just say :eyepop: :eyepop: and :eyepop:

and all with a TouCam!!!!!!!!!!!!!! :eyepop:

Come and teach me how to use my TouCam like that :eyepop:


P.S. :eyepop:

[AstroJunk]

Brilliant! I considered trying to video it myself, but in the end the seeing was too poor so I just enjoyed the view (quick though it was!)

I never thought it would be possible to capture 16th mag so close to the full moon ... BTW, I think you have Titania and Oberon swapped.

[Ric]

Brilliant images Dennis,
and getting the moons of Uranus as well, thats awesome.
Keep up the great work I look forward to your next images

cheers

[glenc]

The collage was very impressive.
I agree with the 20 million times calculation.
For me Uranus was on the other side of the triangular mountain peak on the moon's limb.
The result of parallax.

[Dennis]

Hi AstroJunk

Thanks for the correction - now fixed. I have posted the revised edition with a time lapse collage in Pane 1.

Cheers

Dennis

[Dennis]

Hello, Glen

Thanks for verifying the calculations; I was a little unsure of my sums, as 20,000,000 sounded a big number! I didn't realise that the parallax effect would be so pronounced over such a relatively small terrestrial distance, so that was a very interesting observation too.

Cheers

Dennis

[mojo]

Very impressive, Dennis!

(P.S. Put your name on it)

[Starkler]

Dennis I absolutely love your work ! :eyepop:
This is absolutely worthy of publication.

:thumbsup::thumbsup::thumbsup::thum bsup::thumbsup: