Table of Contents Author Guidelines Submit a Manuscript
Research Article
Mathematical Problems in Engineering
Volume 2017, Article ID 7031969, 2 pages
https://doi.org/10.1155/2017/7031969
Corrigendum

Corrigendum to “Using Sidereal Rotation Period Expressions to Calculate the Sun’s Rotation Period through Observation of Sunspots”

1Department of Physics, National Kaohsiung Normal University, Kaohsiung 824, Taiwan
2Graduate Institute of Science Education & Environmental Education, National Kaohsiung Normal University, Kaohsiung 824, Taiwan

Correspondence should be addressed to Ming-Chung Ho; wt.ude.unkn.ccunkn@3061t

Received 22 May 2017; Accepted 1 June 2017; Published 12 July 2017

Copyright © 2017 Tsung-Ching Chen et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


In the article titled “Using Sidereal Rotation Period Expressions to Calculate the Sun’s Rotation Period through Observation of Sunspots” [1], there was an error in Table  1, which should be corrected as shown in Table 1.

Table 1: Part of the observation record of 2013 sunspots (taking 6 days).

Additionally, in “Method III: Calculation of the Solar Rotation Period,” the text reading “for example, the heliolongitude of sunspot number 1642 in 01-03-2013 is 252.16°. After 6 days, heliolongitude = 252.34° (Table  1)” should be corrected as follows.

“For example, the heliolongitude of sunspot number 1642 on 3 January 2013 is 252.16°. After 6 days, heliolongitude = 252.34° (Table 1).”

References

  1. T.-C. Chen, J.-S. Lih, T.-T. Chang et al., “Using sidereal rotation period expressions to calculate the sun’s rotation period through observation of sunspots,” Mathematical Problems in Engineering, vol. 2015, Article ID 153407, 4 pages, 2015. View at Publisher · View at Google Scholar · View at Scopus