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Article: Photoelectric magnitude measurements of the lunar eclipses on May 16, 2003 and Oct. 28, 2004.
- Article from:
- Georgia Journal of Science
- Article date:
- December 22, 2004
- Author:
CopyrightCOPYRIGHT 2004 Georgia Academy of Science. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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ABSTRACT
The Moon's brightness dropped by 10.73[+ or -]0.07 and 10.61[+ or -]0.15 magnitudes during the total lunar eclipses on May 16, 2003 and Oct. 28, 2004 respectively. These magnitude drops are close to the corresponding value for the Jan., 2000 total lunar eclipse and indicate that not much change in the transparency of the atmosphere has occurred in the last 4 years.
Key words: total lunar eclipse, photometry.
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INTRODUCTION
A total lunar eclipse occurs when the moon moves into the darkest part of the Earth's shadow (called the umbra). The time when the Moon enters the umbra is called U2 and the time when the ...