Attosecond to Second (Sidereal) Converter
Unit Converter
Instant · Precise · Universal
28 units available
6 categories total
How to Convert Attosecond to Second (Sidereal)
To convert as to seconds: multiply by 10⁻¹⁸. To convert as to femtoseconds: divide by 1,000.
1 as = 10⁻¹⁸ s = 0.001 fs. Light travels only about 0.3 nm (the width of a water molecule) in one attosecond.
For example, 1 Attosecond (as) = 1.002738e-18 Second (Sidereal) (s (Sid)).
Attosecond to Second (Sidereal) — Common Values
| Attosecond (as) | Second (Sidereal) (s (Sid)) |
|---|---|
| 0.1 | 1.002738e-19 |
| 0.5 | 5.013689e-19 |
| 1 | 1.002738e-18 |
| 2 | 2.005476e-18 |
| 5 | 5.013689e-18 |
| 10 | 1.002738e-17 |
| 25 | 2.506845e-17 |
| 50 | 5.013689e-17 |
| 100 | 1.002738e-16 |
| 500 | 5.013689e-16 |
| 1000 | 1.002738e-15 |
About Attosecond (as)
Definition
The attosecond is a unit of time equal to 10⁻¹⁸ seconds — one quintillionth of a second.
Mathematical Relationship
1 as = 10⁻¹⁸ s = 0.001 fs. Light travels only about 0.3 nm (the width of a water molecule) in one attosecond.
Conversion Formula
To convert as to seconds: multiply by 10⁻¹⁸. To convert as to femtoseconds: divide by 1,000.
Practical Applications
No everyday applications yet. Research applications include tracking electron motion and developing future ultrafast electronics.
Interesting Facts
An attosecond is to one second as one second is to about 31.7 billion years — roughly twice the age of the universe.
Common Mistakes
Confusing 'as' (attosecond) with the English word 'as'. In scientific texts, context and formatting prevent ambiguity.
Educational Tips
The 2023 Nobel Prize in Physics was awarded for attosecond pulse generation — this field is at the frontier of ultrafast science.
About Second (Sidereal) (s (Sid))
Definition
The sidereal second is 1/60 of a sidereal minute — approximately 0.99727 solar seconds.
Mathematical Relationship
1 sidereal second ≈ 0.99727 solar seconds. 86,400 sidereal seconds = 1 sidereal day.
Conversion Formula
To convert sidereal seconds to solar seconds: multiply by 0.99727. One solar second ≈ 1.00274 sidereal seconds.
Practical Applications
Telescope tracking motors rotate at sidereal rate (1 revolution per sidereal day) to follow stars across the sky.
Interesting Facts
The difference between sidereal and solar seconds (2.73 ms) seems tiny, but over a day it adds up to the full ~236 s difference.
Common Mistakes
Assuming sidereal seconds equal solar seconds. The ~0.27% difference is critical in precision astronomy.
Educational Tips
Multiply any sidereal time interval by 0.99727 to get the solar equivalent. This ratio stays constant at all time scales.