What Is This Tool?
This converter tool allows you to translate length measurements from the Bohr radius unit, commonly used in atomic-scale physics and quantum chemistry, to the petameter unit, which measures vast astronomical distances.
How to Use This Tool?
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Enter the value in Bohr radius units you want to convert.
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Select 'Bohr radius [b, a.u.]' as the input unit if not pre-selected.
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Choose 'petameter [Pm]' as the desired output unit.
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Click the convert button to see the equivalent length in petameters.
Key Features
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Converts atomic-scale length units (Bohr radius) to extremely large-scale units (petameter).
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Includes accurate conversion based on SI and atomic unit definitions.
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Browser-based and easy to use for both scientific and educational purposes.
Examples
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1 Bohr radius equals approximately 5.2917724900001e-26 petameters.
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10 Bohr radii convert to about 5.2917724900001e-25 petameters.
Common Use Cases
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Quantum chemistry and atomic-structure calculations using atomic units.
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Computational physics methods such as density functional theory requiring compact interatomic distances.
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Astronomy and astrophysics when relating atomic scales to cosmic distances like star separations or interstellar structures.
Tips & Best Practices
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Use this conversion primarily for theoretical scaling or dimensional analysis.
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Verify large-scale scientific data when combining units from atomic scale and astrophysics.
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Consider the numerical smallness of results when converting Bohr radius to petameter due to their vastly different magnitudes.
Limitations
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Conversion results in extremely small numerical values, which may be impractical for everyday measurement comparisons.
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Primarily useful for theoretical or scientific analysis rather than routine physical measurements.
Frequently Asked Questions
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What is the Bohr radius?
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The Bohr radius is the atomic unit of length representing the most probable distance between a nucleus and an electron in hydrogen's ground state.
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What is a petameter?
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A petameter is an SI length unit equal to 10^15 meters, used to express very large distances like those between nearby stars.
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Why convert Bohr radius to petameter?
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Converting these units helps relate atomic-scale measurements to enormous astrophysical distances for integrated scientific understanding.
Key Terminology
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Bohr radius [b, a.u.]
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The atomic unit of length defining the likely distance between a hydrogen nucleus and its electron in the ground state.
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Petameter [Pm]
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An SI length unit equal to 10^15 meters, useful for measuring astronomical distances smaller than interstellar parsec scales.