Convert petameter to megaparsec
Please provide values below to convert petameter [Pm] to megaparsec [Mpc], or Convert megaparsec to petameter.
How to Convert Petameter to Megaparsec
1 Pm = 3.24077928966636e-08 Mpc
Example: convert 15 Pm to Mpc:
15 Pm = 15 × 3.24077928966636e-08 Mpc = 4.86116893449954e-07 Mpc
Petameter to Megaparsec Conversion Table
| petameter | megaparsec |
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Petameter
A petameter is a unit of length in the metric system equal to 10^15 meters.
History/Origin
The prefix "peta-" for 10^15 was adopted by the CGPM (General Conference on Weights and Measures) in 1975.
Current Use
The petameter is used for measuring distances on a galactic scale, such as the size of the Milky Way galaxy.
Megaparsec
A megaparsec is a unit of distance used in astronomy, equal to one million parsecs.
History/Origin
The parsec was first coined by British astronomer Herbert Hall Turner in 1913. The megaparsec came into use as astronomical distance measurements extended to other galaxies.
Current Use
The megaparsec is used to measure the distances between neighboring galaxies and galaxy clusters.