Publications of The Korean Astronomical Society (천문학논총)

The Korean Astronomical Society (한국천문학회)
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OBSERVATIONS OF THE ANNULAR ECLIPSE ON 2012 MAY 21 BY THE GENERAL PUBLIC IN JAPAN

  • Received : 2014.11.30
  • Accepted : 2015.06.30
  • Published : 2015.09.30
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Abstract

We had a campaign of observing the annular solar eclipse on 2012 May 21 by naked eye through eclipse eyeglasses to determine the limit line of annularity. As a result, we had about 15,000 reports through our website. In addition there were many observation groups for which about 30,000 people in total participated in the observations. The overall result was that the limit we observed by naked eye through eclipse glasses coincided with a prediction that took into account the lunar limb irregularity within the error of ${\pm}500m$. This error of the limit line location corresponds to about ${\pm}200km$ of the radius of the Sun.

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References

  1. Araki, H., Tazawa, S., & Noda, H., et al., 2009, Lunar Global Shape and Polar Topography Derived from Kaguya-LALT Laser Altimetry, Science, 323, 897 https://doi.org/10.1126/science.1164146
  2. Auwers, A., 1891, Der Sonnendurchmesser und der Venus-durchmesser nach den Beobachtungen an den Heliometern der deutschen Venus-Expeditionen, Astro. Nach., 128, 361 https://doi.org/10.1002/asna.18911282002
  3. Emilio, M., Kuhn, J. R., Bush, R. I., & Scholl, I. F., 2012, Measuring the Solar Radius from Space during the 2003 and 2006 Mercury Transits, ApJ, 750, 135 https://doi.org/10.1088/0004-637X/750/2/135
  4. Soma, M., Araki, H., Noda, H., Tazawa, S., Goossens, S., & Hayamizu, T., 2005, Northern Limit of the Annular Solar Eclipse on 2012 May 21 in Japan, Report of the NAOJ, 15, 1