nautical almanac
C6787
concept
A nautical almanac is a reference book that provides astronomical and navigational data, such as positions of celestial bodies and tide tables, used by mariners to determine their position at sea.
All labels observed (2)
| Label | Occurrences |
|---|---|
| ephemeris | 3 |
| nautical almanac canonical | 1 |
Description generation (CDg)
The one-sentence description above was generated by prompting gpt-5.1 with the class name and this instruction.
Instruction
generate a one-sentence description for a given conceptual class. # Response Format Return only the sentence: "Description: [one-sentence description of the conceptional class]"
Input
Class: nautical almanac
Generated description
A nautical almanac is a reference book that provides astronomical and navigational data, such as positions of celestial bodies and tide tables, used by mariners to determine their position at sea.
Instances (4)
| Instance | Via concept surface |
|---|---|
| Tables of the Sun | ephemeris |
| Alfonsine Tables | ephemeris |
| The New American Practical Navigator | — |
| Ephemerides | ephemeris |