poider

Ok so I am 49 yo I love Astronomy, Aviation and Photography, I like to combine those interests as much as possible, But I also work 5 days a week so cannot devote nearly enough time to any or all of them. I want to learn more about the Mathematics but do understand that it is a huge undertaking at my age. What books would you recommend that I get hold of for a beginner in the field of mathematics? Peter

so the 186,000,000 miles I Assume is the extremities of the Earths orbit around the Sun, but I cannot comprehend how we know how far from the Sun we are if we have no solid point of reference to compare? Peter I am not doubting anything that you tell me I just need it explained to me in simplest of terms, I guess without specific solid physical proof I find it all hard to follow, I am not the most mathematically minded person so any thing proven only by mathematics is hard for me to comprehend. Peter

is my question that simplistic that 19 viewers do not bother to answer? or is the answer so complicated that readers are still typing their replies? Peter

Hi I am new to the forum and am not an overly intelligent individual, so I hope I don't bore you all with my mundane questions, I have so many but will try to keep them interesting... We know how fast light travels and we use that to determine the distance of the moon through reflectors and lasers etc, How do we determine the distance of Jupiter or the Andromeda Galaxy or Kepler 186F? Peter