Dear friends of Science and Astronomy,

Wish you all a very happy SHARAD POORNIMA to you all friends and family
members. Today is Sharad POORNIMA, biggest and brightest moon of year,
as we say in traditions for Sharad purnima, (Oct. 25-26) is the biggest
full Moon of 2007. It's no illusion. Some full Moons are genuinely
larger than others and Thursday night's will be as much as 14% wider and
30% brighter than lesser full Moons we've seen earlier this year. Check
http://spaceweather.com for the reasons

BIG FULL MOON: Tonight's full Moon is the biggest full Moon of 2007.
It's no illusion
<http://science.nasa.gov/headlines/y2007/27jun_moonillusion.htm> . Some
full Moons are genuinely larger than others and this one is a whopper.
Why? Read the answer below.
Left: A big, bright perigee Moon. RIght: A lesser apogee Moon. The
Moon's orbit is an ellipse with one side 30,000 miles closer to Earth
than the other. The full Moon of Oct. 25-26 is located on the near side,
making it appear as much as 14% bigger and 30% brighter than lesser full
Moons we've seen earlier in 2007. In the language of astronomy, the
two ends of the Moon's orbit are called "apogee
<http://www.fourmilab.ch/earthview/moon_ap_per.html> " and "perigee
<http://fourmilab.ch/earthview/pacalc.html> ." Apogee is the farthest
point, perigee the nearest: diagram. This week's full Moon is a
"perigee Moon" with extra-high "perigean
<http://www.whoi.edu/seagrant/education/bulletins/tides.html> tides
<http://www.oceanservice.noaa.gov/education/kits/tides/tides06_variation\
s.html> ." The Moon is 14% bigger, but can you actually tell the
difference? It's not so easy. There are no rulers floating in the sky to
measure lunar diameters. A fun experiment: Take a friend outside
Thursday night and ask if they notice anything unusual about the Moon.
Explain perigee after they answer.
By yours Dr.BHUDIA-Science Group Of INDIA.
http://uk.groups.yahoo.com/group/venustransit_2004/
<http://uk.groups.yahoo.com/group/venustransit_2004/>
President:"Kutch Science Foundation".
Founder :"Kutch Amateurs Astronomers Club - Bhuj - Kutch".
Life Member:"kutch Itihaas Parishad".
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