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How to Convert from Degree/day [°/d] to Revolution/day [r/d]?
Learn how to convert angular velocity values from degree per day to revolution per day, useful in astronomy, geodesy, and spacecraft tracking.
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Degree/day [°/d] to Revolution/day [r/d] Conversion Table
| Degree/day [°/d] | Revolution/day [r/d] |
|---|
Custom Unit Conversion Table Generator – Instant Printable Conversion Tables
Enter the starting number (positive decimal or integer ≥ 0). Example: 0.1, 1, 5.
Enter the ending number (positive decimal or integer > Start Value). Example: 10, 50, 100.
Enter the step size (positive decimal > 0 and < End Value – Start Value). Example: 1.0, 2.5.
| Degree/day [°/d] | Revolution/day [r/d] |
|---|
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What Is This Tool?
This converter transforms angular velocity measurements expressed in degrees per day into revolutions per day. It's designed for applications involving slow rotations such as planetary motion, spacecraft attitude drift, and telescope tracking.
How to Use This Tool?
- Enter the angular velocity value in degrees per day (°/d).
- Select the target unit as revolution per day (r/d).
- Perform the conversion to see the equivalent value in revolutions/day.
Key Features
- Converts angular velocity from degree/day [°/d] to revolution/day [r/d].
- Expresses slow rotational motions in complete rotations per 24 hours.
- Supports common use cases in astronomy, geodesy, and spacecraft tracking.
Examples
- 10 degree/day [°/d] converts to 0.027777778 revolution/day [r/d].
- 360 degree/day [°/d] equals 1 revolution/day [r/d].
Common Use Cases
- Reporting mean motion of solar system bodies like asteroids and comets in ephemerides.
- Expressing slow rotation or precession rates of planets, moons, and spacecraft attitude drift.
- Specifying telescope tracking rates to follow slowly moving objects across the sky.
Tips & Best Practices
- Use this conversion for interpreting slow rotational motions in astronomy and geodesy.
- Confirm uniform angular velocity assumptions before applying this conversion.
- Consider converting to SI radians per second for scientific calculations requiring precision.
Limitations
- Assumes angular velocity remains constant over a 24-hour period.
- Not suited for rapidly changing or highly variable angular velocity values.
- Degree/day is not an SI unit; convert to radians per second for scientific precision.
- Small angular velocities may lead to rounding errors and require more precise units.
Frequently Asked Questions
- What does degree per day [°/d] represent?
- Degree per day is an angular velocity unit that measures angular displacement in degrees over one day (24 hours).
- Why convert from degree/day to revolution/day?
- Converting to revolution/day expresses angular velocity as full rotations per day, simplifying the interpretation of slow rotational motions.
- Is degree/day an SI unit?
- No, degree/day is not an SI unit. For scientific precision, converting to radians per second is recommended.
Key Terminology
- Degree/day [°/d]
- An angular velocity unit measuring angular displacement in degrees over a 24-hour period.
- Revolution/day [r/d]
- An angular velocity unit representing one complete rotation (360°) in one day.
- Angular velocity
- The rate of change of angular position of an object, measured in units like degrees per day or revolutions per day.