Convert Roman actus to parsec
Please provide values below to convert Roman actus [actus] to parsec [pc], or Convert parsec to Roman actus.
How to Convert Roman Actus to Parsec
1 actus = 1.14978700999872e-15 pc
Example: convert 15 actus to pc:
15 actus = 15 × 1.14978700999872e-15 pc = 1.72468051499807e-14 pc
Roman Actus to Parsec Conversion Table
| Roman actus | parsec |
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Roman Actus
The Roman actus was a unit of length equal to 120 Roman feet, about 35.5 meters.
History/Origin
The actus was a standard unit of land measurement in the Roman Empire.
Current Use
The Roman actus is an obsolete unit of measurement.
Parsec
A parsec is a unit of length used to measure the large distances to astronomical objects outside the Solar System, approximately equal to 3.26 light-years. It is the distance at which one astronomical unit subtends an angle of one arcsecond.
History/Origin
The term "parsec" is a portmanteau of "parallax" and "second," coined by British astronomer Herbert Hall Turner in 1913.
Current Use
The parsec is the preferred unit of distance in astronomy and astrophysics for expressing the distances to stars and galaxies.