MARS as seen from the Fishcreek Observing Site
Saturday - 8/27/2011


OK, it's that time of year again - time for the barrage of emails stating:

    1)  "Mars will be as big as a FULL MOON on August 27!"  or

    2)  "There will be TWO FULL MOONS on August 27!  This is a once-in-a-lifetime event!"  or

    3)  Something similar to the above.

Well, the information provided in these well-meaning emails is absolutely positively DEAD WRONG!!!!
Read all the information on this page and, if you're satisfied, copy and paste this link:

in an email reply to your friends / family / co-workers that sent you the information in the first place.

As you can see in the chart below, Mars isn't even VISIBLE tonight!
It will set at 5:47pm this afternoon and won't rise until 2:38am tomorrow morning when it will look like a medium-bright
reddish star, much dimmer than Jupiter.


Mars data



10:13am - Time of highest position in the sky, due South






93.57% illuminated


2.01203995 AU = 300,996,892 km = 187,030,800 miles = 16.76 light-minutes



Apparent size:

4.65 arcseconds in angular diameter - less than 1/387th the apparent diameter of the Moon!

Elongation from Sun:

48.24 (morning sky)

Dates of Opposition (when Mars is closest to the Earth)


Friday Jan 29, 2010 at 2:21pm. Distance: 99,400,435 km. Size: 14.08 arcseconds.


Saturday Mar 3, 2012 at 3:52pm. Distance: 100,839,728 km. Size: 13.88 arcseconds.

Click here:

For a table of close encounters with Mars from 1969 to 2052

On 8/27/2011 at 9:09:50pm Mars will be 24.1 below the north-northwest horizon

Question: Will Mars be "as big as a Full Moon on August 27!" ???

Question: Will there be "Two Full Moons in the Sky!" ???

Mars was the closest in recorded history on August 27, but that occurred ONLY in 2003, not every year!
At that time, it appeared to be 1/75
th the apparent diameter of the Moon!  NOT the "same size as the Full Moon".

Please check these respected sites for their stories on the "Mars hoax" by clicking on the links below:

    Sky & Telescope


    Universe Today

Click here for additional data on Mars

(back to 'Quick Links')

Inner Solar System - the Sun, Mercury, Venus, Earth and Mars on 8/27/2011
(Created using Software Bisque's
TheSky software)

As you can see in this graphic, Mars is quite distant from the Earth.  On 8/27/2011, It will be 187,030,800 miles away.
The Earth, on an "inner track", is steadily catching up to Mars and will be at its closest on 3/3/2012 when it will be 62,658,902 miles away
and appear 1/130th the diameter of the full Moon.

Very sincerely yours,
Dave Jessie
"Time spent observing the heavens is not deducted from your life span"


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