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Originally Posted by Argonavis
MiG
I thought the Moon was 31 arc sec or about 0.5 degree to the unaided (I don't say naked anymore) eye? Isn't that wot you got?
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For some reason I thought the moon was 1 degree. It is 0.5 degree as you said. However, 0.5 degree = 30 arc minutes not seconds
First Google result for "mars opposition"
"Mars, our neighbor planet was the closest its been to Earth in 60,000 years on August 27, 2003"
So this e-mail actually is referring to the 2003 opposition. Apart from that it is factual. Under 75x mag, the 25" Mars becomes 0.5 degree. The e-mail that a friend forwarded to me didn't say anything about magnification so I immediately said it's a bunch of crap.
So Nightshift, it is almost correct. It ambiguously specifies 75x mag.
Edit: Decreased rudeness in light of ambiguity.