Let's be clear here: a "moon sized mass" is not the same things as "a mass of equivalent size as the Earth's moon."
Mars, for instance, has two small asteroids as moons.
Clarification noted, I still stand by my statement. Deimos (The smaller moon) is still 5x6x7 kilometers in size. That is still too much for a Wish or any other similar spell to bring to thousands of kilometers an hour in speed.
Ever see Star Trek IV: The Voyage Home, aka the movie with whales and nuclear wessels? Spock calculates how to time travel using the sun as a gravitational sling shot using his brain so that the Enterprise crew can get back to the future? Not the Bird of Prey's computer, his brain.
(Sarcasm)Yes, because what a fictional character does in a space movie is legitimate grounds to judge what an extremely intelligent person is capable of...(/sarcasm) that is also a single unimaginably difficult calculation I assume, which means, with several hundred thousand Spocks, you are set to go!
Also, I have not seen the movie.
Do you use an attack roll to aim an observatory's telescope?
A telescope does not cause damage to what it views, nor is it intended to. Your connection is unrealistically far stretched. To answer the question: No, but it doesn't matter. If the Telescope were the scope for a weapon however, I would say yes, which is closer to the situation being discussed.
For the record Pelor has an Int of 32. A wizard with an Int of 34 (18 base+5 level+5 inherent+6 enhancement). +3 to that if he's old.
Admittedly this is less than Boccob's Int of 50 without pulling shenanagans, but you are smater than several gods. Presumiably, minor deities as well.
Ah sorry, I wasn't clear. Getting a minor deity to help you know all of the variables you would need to would be an option. Since the minor deity is able to be aware of hundreds of times more then what a normal person is, it isn't too much of a stretch to assume they can have a lot more parallel thought then a human (as in, can do hundreds of times the calculations simultaneously). Intelligence does not necessarily encompass abilities and things like this, and so saying someone with higher intelligence then a deity is just as good is... a stretch.
In your back yard, if I ever get it off the ground.
Well that didn't seem very friendly... unless you mean you are going to make an important NPC after me, in which case, I am honored. ^^
What about my suggestions to get it to work? Y U ONLY REPLY TO THE NEGATIVE CRITICISM?! I want to help, but if you simply refuse to see the flaws in your plan and acknowledge suggestions to get around them...
Edit: Although theory is one of my strong points, I am not all knowing for D&D. How would you deal with the environment of space/high atmospheric layers long enough to do all of this? Or would this be a "1 hour a day for several years" kind of thing? Even then what spells would you use?