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月距法による時刻推定 － 間接測定による方法の実海域での検証 －
https://doi.org/10.15053/0000000200
https://doi.org/10.15053/000000020006d05443-c4af-4086-aeee-94f43776aed1
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
月距法による時刻推定 (632.1 kB)
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| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2023-05-31 | |||||
| タイトル | ||||||
| タイトル | 月距法による時刻推定 － 間接測定による方法の実海域での検証 － | |||||
| 言語 | ja | |||||
| タイトル | ||||||
| タイトル | Time Determination by Lunar Distance Method － Indirect Measuring of Lunar Distance and Verification on Actual Ocean Voyage － | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | jpn | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | Lunar Distance Method | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | Celestial Navigation | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | departmental bulletin paper | |||||
| ID登録 | ||||||
| ID登録 | 10.15053/0000000200 | |||||
| ID登録タイプ | JaLC | |||||
| 著者 |
田中, 隆博
× 田中, 隆博× 小林, 拓司× 島村, 圭一× KOBAYASHI, Takuji× SHIMAMURA, Keiichi |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Abstract There was no way to know the error of clock once the ship sailed out into the ocean before the invention of marine chronometer. The navigator asked for the answer into the movement of heavenly bodies. The moon travels about 0.55 degree per hour, roughly equivalent to its own apparent diameter, against the celestial coordinate. Consequently, the angle between the moon and other celestial bodies, the angles called “the Lunar Distance”, changes from moment to moment. It can determine the time by measuring the Lunar Distance and comparing the distance with forecasted values on the almanac. However, to measure the Lunar Distance by sextant on the ship is very difficult, good results have not been raised with the classical Lunar Distance method. In this paper, in order to overcome the difficulty of measuring the Lunar Distance, we showed the method which is able to measure the Lunar Distance indirectly. We actually performed the indirect measuring method on the ocean voyage and show some results |
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| 書誌情報 |
海上保安大学校研究報告, 理工学系 en : Report of Japan Coast Guard Academy Part 2 (The Science and Engineering Section) 巻 56, 号 1-2, p. 11-17, 発行日 2013-03-29 |
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| 出版者 | ||||||
| 出版者 | 海上保安大学校 | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0287-2951 | |||||
| 書誌レコードID | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AN10088865 | |||||
| DOI | ||||||
| 関連タイプ | isIdenticalTo | |||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.15053/2012.21.02 | |||||
| 著者版フラグ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
