papisa said:
Old news equals the correct news now.
Earth is catching up with Mars that will be an encounter that will Culminate its Closest approach between the two planets in recorded history.
The next time mars will be this close is in the year 2287. Astronomers can be only certain that mars has not come this close to earth in the last 5000 or maybe 60,000 years before it happens again.
Mars will be within 34,649,589 miles to earth and will be next to the Moon, the brightest object in the sky, it will appear in 25.11 arc seconds wide and it will attain a magnitude of -2.9.
Mars will look as large as the full moon to the naked eye.
No one Alive Today will ever see this again.
Mike.
Sorry, but this is dead wrong, and comes from an old, undated memo that's still circulating the internet and gets rehashed every year at this time since 2003 by people who don't check the facts.
The info you have is for 2003. Mars will be opposite the sun from earth this August, nearly as far away as it gets, and near the sun in the sky, so it will only be on the western horizon for a very short time during twilight in late August this year. In 2003 it was around 40 arcseconds in diameter. Late this August it will be 3.5 arcseconds in diameter, which is less than 1/1000 of one degree in diameter. No observatory near you will show any detail on Mars at this distance and apparent size. Mars will be 242 million miles away on Aug 25th, not 35 million.
In other words, this August is close to the worst possible alignment for viewing Mars.
Lee
(intro college astronomy lab instructor and observatory manager)
P.S. Mars at its closest approaches is about 25 arcseconds across, the moon is always in the neighborhood of 1800 arcsecond across. Mars is never more than approximately 1/72nd the diameter of the moon. Don't believe everything you read on the internet, even on APUG.

(Even if I type it.)