Conversion Formula:
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Definition: This calculator converts time in hours to degrees, primarily used in astronomical calculations.
Purpose: It helps astronomers and navigators convert between time measurements and angular measurements.
The calculator uses the formula:
Where:
Explanation: The Earth rotates 15 degrees per hour (360° in 24 hours), so time can be directly converted to degrees using this ratio.
Details: This conversion is essential for celestial navigation, telescope positioning, and astronomical observations where time measurements correspond to angular positions in the sky.
Tips: Simply enter the time in hours (can be decimal) and the calculator will output the equivalent in degrees.
Q1: Why is the conversion factor 15?
A: Because the Earth completes a full 360° rotation in 24 hours, so 360°/24h = 15°/h.
Q2: Can I convert minutes or seconds to degrees?
A: Yes, first convert to hours (e.g., 30 minutes = 0.5 hours) then multiply by 15.
Q3: Is this used for both right ascension and longitude?
A: Yes, both celestial right ascension and Earth's longitude use this time-degree relationship.
Q4: How precise is this conversion?
A: The conversion is mathematically exact, though actual astronomical positions may require additional corrections.
Q5: Can degrees be converted back to time?
A: Yes, divide degrees by 15 to get hours (Time = Degrees / 15).