0.1% of the speed of light (0.001c)
0.1% of c (0.001c)Speed · definition
The quantity is exact as entered. Comparisons use the clearly stated specimen, model or nominal measurement.
Speed
Just how fast is 0.1% of the speed of light (0.001c)?
Toward light speed
0.1% of c (0.001c)
DISTANCE IN ONE SECOND
0.1% of the speed of light (0.001c)
The quantity is exact as entered.
0.1% of c (0.001c)Speed
0
299.8 km in 1 s
Mercury
Mercury is a rocky planet orbiting closest to the Sun in the Solar System.
170,500 km/hOrbital speed
0
47.36 km in 1 s
Each track shows distance covered in the same second. The small illustrations identify the movers; their sizes are schematic.
A little perspective
0.1% of the speed of light (0.001c) is about 6.33 times the orbital speed of Mercury.
Measurements, assumptions & sources +
0.1% of the speed of light (0.001c)
Speed: 0.1% of c (0.001c); definition.
The quantity is exact as entered. Comparisons use the clearly stated specimen, model or nominal measurement.
Mercury
Orbital speed: 170,500 km/h; rounded orbital anchor.
Mean-radius spherical model for Mercury; actual shape is not perfectly spherical.
Rounded representative orbital speed, not instantaneous ephemeris data.
Defined examples — our methodology
The marked orbital speed is calibrated. Unmeasured illustration details are representative.
Measurement details
Why these numbers?
Compare 0.1% of the speed of light (0.001c) with the orbital speed of Mercury. The notes below explain how each value was chosen.
Mercury
170,500 km/hOrbital speed · rounded orbital anchor
Mean-radius spherical model for Mercury; actual shape is not perfectly spherical.
- Comparing
- Speed ↔ Orbital speed
- Relative size
- 0.1% of the speed of light (0.001c) is about 6.33 times the orbital speed of Mercury. 0.1% of the speed of light (0.001c) is approximately 533% greater than the orbital speed of Mercury.
How to read the visual
The diagram uses the recorded measurements. Details outside the marked spans do not set the scale.
- Mercury: Rounded representative orbital speed, not instantaneous ephemeris data.
Speed is distance per unit time; it does not specify the total distance travelled.
299,790 m/smetres per second
1,079,300 km/hkilometres per hour
670,620 mphmiles per hour
Mach 874.03Mach
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