Last Updated
：2025/11/20
parallax second
Noun
Japanese Meaning
天文学で使用される長さの単位で、地球からの距離を、視差が1秒角となる天体の距離として定義されたもの。約3.08568025×10¹³キロメートル、または約3.2616光年に相当する。
（ plural ）
Quizzes for review
A unit of length, used in astronomy, defined as the distance from the Earth of an object that exhibits a parallax of 1 arcsecond. It is approximately equal to 3.08568025 × 10¹³ kilometers or 3.2616 light years.
音声機能が動作しない場合はこちらをご確認ください
See correct answer
parallax second
Astronomers often use the parallax second as a standard unit when comparing stellar distances.
See correct answer
Astronomers often use the parallax second as a standard unit when comparing stellar distances.
音声機能が動作しない場合はこちらをご確認ください
English - English
Word Edit Setting
- Users who have edit permission for words - All Users
- Screen new word creation
- Screen word edits
- Screen word deletion
- Screen the creation of new headword that may be duplicates
- Screen changing entry name
- Users authorized to vote on judging - Editor
- Number of votes required for decision - 1
Sentence Edit Setting
- Users who have edit permission for sentences - All Users
- Screen sentence deletion
- Users authorized to vote on judging - Editor
- Number of votes required for decision - 1
Quiz Edit Setting
- Users who have edit permission for quizzes - All Users
- Users authorized to vote on judging - Editor
- Number of votes required for decision - 1
