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Anonymous Posted 16 years ago
Vocabulary
''sidereal'' time - can it be ''sideral'' time?
Hello,
I have a concern on the term "sidereal" related to fundamental astronomy and the concept of time measured as the hour angle of the point of Aries.
In many books and sources, I found also the term of "sideral" time, which means the same.
Which is the proper one? Is the "sideral" an old-fashioned or obsolete word?
Please explain, many thanks in advance.
Best,
I have a concern on the term "sidereal" related to fundamental astronomy and the concept of time measured as the hour angle of the point of Aries.
In many books and sources, I found also the term of "sideral" time, which means the same.
Which is the proper one? Is the "sideral" an old-fashioned or obsolete word?
Please explain, many thanks in advance.
Best,
Top answer
The usual word is "sidereal". I have never heard of "sideral"; it is not in most dictionaries and appears to be a rare or old-fashioned variant. I don't recommend using it.
- The usual word is "sidereal".
- I have never heard of "sideral"; it is not in most dictionaries and appears to be a rare or old-fashioned variant.
- I don't recommend using it.
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2 Answers
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The usual word is "sidereal". I have never heard of "sideral"; it is not in most dictionaries and appears to be a rare or old-fashioned variant. I don't recommend using it.
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The correct English term is "sidereal". However, in Latinic languages like French, Romanian, perhaps even Italian and Spanish "sidereal" is written and pronounced "sideral". Perhaps the books you saw were not written (or proof read) by native English speakers.
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