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!
Thanks for listening to all our advice to get you where you are today!
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.
Dennis that may be one of the most audacious pieces of planetary imaging ever! It looks fantastic - your skill in combining these various device inputs and extracting gold from astronomical lead is bordering on "spooky"
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!
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
you lost me after a "huge disparity of brightness" then things went all hazy
Incredible result Dennis! I knew, given clear skies, you'd come up with something special.
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