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How to Convert from Radian/hour [rad/h] to Revolution/day [r/d]?
Learn to convert angular velocity from radian per hour to revolution per day with this easy-to-use online converter, ideal for astronomy and geodesy applications.
Please check your input. It must be a valid numeric value.
Radian/hour [rad/h] to Revolution/day [r/d] Conversion Table
| Radian/hour [rad/h] | 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.
| Radian/hour [rad/h] | Revolution/day [r/d] |
|---|
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What Is This Tool?
This unit converter helps users change angular velocity values from radian per hour (rad/h) to revolution per day (r/d). It is designed for those working with slow rotational speeds, especially in fields like astronomy, geodesy, and spacecraft attitude control.
How to Use This Tool?
- Enter the angular velocity value in radian/hour.
- Select radian/hour as the input unit and revolution/day as the output unit.
- Click the convert button to see the result in revolution/day.
- Interpret the output for applications like planetary rotation or slow instrument movement.
Key Features
- Converts angular velocity between radian/hour and revolution/day units.
- Supports measurements used in astronomy, geodesy, and long-duration experiments.
- Browser-based tool requiring no installation.
- Provides precise conversion using the rate 1 rad/h = 3.8197186342 r/d.
- Includes examples for quick reference.
Examples
- 2 rad/h converts to 7.6394372684 r/d.
- 0.5 rad/h converts to 1.9098593171 r/d.
Common Use Cases
- Expressing planetary and Earth rotation rates in astronomy and geodesy.
- Specifying the spin rates of spacecraft or satellites over extended periods.
- Measuring slow rotational speeds in laboratory turntables or long-duration experiments.
- Translating angular velocity into complete rotations per day for easier interpretation.
Tips & Best Practices
- Ensure input values represent slow rotations appropriate for these units.
- Use this conversion when dealing with daily or hourly angular velocities.
- Apply consistent time standards (3600 seconds/hour and 86400 seconds/day) for accuracy.
- Consider other units like rad/s for very fast angular velocities.
Limitations
- Assumes the angular velocity is uniform and continuous during the time interval.
- Relies on standard hour and day durations for conversion accuracy.
- Not optimal for fast rotations where other units would be more suitable.
Frequently Asked Questions
- What does radian per hour measure?
- Radian per hour measures angular velocity, representing how many radians an object rotates through in one hour.
- Why convert radian/hour to revolution/day?
- Converting helps express slow rotations in terms of full daily revolutions, making it easier to understand planetary or satellite spin rates.
- Is this converter suitable for fast rotations?
- No, this converter is designed for slow angular velocities; fast rotations are better expressed in smaller time-based units such as radian per second.
Key Terminology
- Radian/hour (rad/h)
- An angular velocity unit representing one radian of rotation per hour, useful for measuring slow angular movements.
- Revolution/day (r/d)
- A unit of angular velocity indicating one full rotation per day, often used to describe slow planetary or satellite spins.
- Angular velocity
- The rate at which an object rotates or changes its angular position over time.