Establishment of a basic technology for effective utilization of a whole sky image using HEALPix method.

• Project/Area Number: 25350330
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Educational technology
• Research Institution: Wakayama University
• Principal Investigator: OZAWA Tomohiko 和歌山大学, 宇宙教育研究所, 客員准教授 (00423252)
• Co-Investigator(Kenkyū-buntansha): OKYUDO Masami 和歌山大学, 観光学部, 教授 (90362855)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000); Fiscal Year 2015: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2014: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000); Fiscal Year 2013: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
• Keywords: 天文 / 全天画像 / HEALPix / 星検出 / 星天域検索 / データベース / 教材開発 / 晴天域検索 / デジタル一眼レフカメラ / 検索システム

Outline of Final Research Achievements

We developed the search system for the night sky which cleared up partially in the whole sky image.
We have developed software for identification of stars using the SAO-J2000 catalogue. This software calculates the projection coefficient using star location on image and equatorial coordinate in catalogue. We used free statistical software R for calculate. It's possible to look for any stars on the image using the projection coefficient.
A whole sky image was divided into a lot of small areas. The weather in a small area was judged by looking for star on image using projection coefficient. The weather of every small area was recorded in a data base, searched for the sky which cleared up. We searched for this data base and looked for the part where the sky cleared up. We built a search system for the sky which cleared up partially.

Research Products

• [Journal Article] 全天モニタ画像公開システムの開発 (2015)
  • Author(s): 小澤友彦, 野田祥代, 古澤順子, 吉田鉄生, 樋口祐一, 市川伸一
  • Journal Title: 国立天文台報 Volume: 17 Pages: 1-17
  • NAID: 40020586286
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Presentation] HEALPix法を用いた全天モニタ画像検索システムの開発 (2016)
  • Author(s): 小澤友彦, 尾久土正己
  • Organizer: 日本天文学会2016年春季年会
  • Place of Presentation: 首都大学東京 南大沢キャンパス
  • Year and Date: 2016-03-14
• [Presentation] 全天モニタ画像の位置較正 (2016)
  • Author(s): 小澤友彦, SMOKA グループ
  • Organizer: 日本天文学会2016年春季年会
  • Place of Presentation: 首都大学東京 南大沢キャンパス
  • Year and Date: 2016-03-14
• [Presentation] 全天モニタ画像用座標校正ソフトウェアの開発 (2015)
  • Author(s): 小澤友彦, 尾久土正己
  • Organizer: 日本天文学会2015年秋季年会
  • Place of Presentation: 甲南大学
  • Year and Date: 2015-09-09
• [Presentation] みさと天文台全天モニタの開発 (2014)
  • Author(s): 小澤友彦（紀美野町みさと天文台）, 尾久土正己（和歌山大学観光学部）, 他
  • Organizer: 日本天文学会２０１４春季年会
  • Place of Presentation: 国際基督教大学
• [Presentation] 全天モニタ画像公開システムの開発 (2014)
  • Author(s): 小澤友彦（紀美野町みさと天文台）, 他
  • Organizer: 日本天文学会２０１４春季年会
  • Place of Presentation: 国際基督教大学
• [Remarks] 科研費25350330（HEALPix法を用いた全天画像の有効利用に向けた基礎技術の確立）成果
  • URL: http://202.214.92.106/skymonitor/kaken25350330.jsp
• [Remarks] 全天モニタ画像公開システム
  • URL: http://ozskymon.nao.ac.jp
• [Remarks] 全天モニタ画像公開システム
  • URL: http://ozskymon.nao.ac.jp