Oban

Oban is not only the Mother Planet as the name of the whole universe's currency name.

They don't say "That will be 1 Oban" whenever you buy something (unless you buy something costly)

The money is at the rate on what planet is furthest away from the Sun- or the closest, however, you may look at it.

Mercury
The closest one to the sun is Mercury, it is just worth 1.

Venus
2nd closest to the sun is Venus, it is worth 5. So five of Mercury.

Earth
3rd closest to the sun is Earth, or people call it now "Mud" is worth 10. So ten Mercury or two Venus.

Mars
Mars the 4th closest to the sun is worth 20. So twenty Mercury, four Venus or two Earth.

Jupiter
Jupiter, the gas planter is the 5th closest to the sun and is worth 50.

So that is fifty Mercury, ten Venus or five Earth.

Mars cannot be done to 50 as it is made to 40. (no shit Sherlock)

Saturn
Saturn the donut planet (mmmm donuts) is the 6th closest as well worth 100. So hundred Mercury, twenty Venus, ten Earth, five Mars or two Jupiter.

Uranus
Pronounced U-ray-nus, the 7th closest as well worth 500.

So five hundred Mercury, hundred Venus, fifty Earth, twenty-five Mars, ten Jupiter or five Saturn

Neptune
Neptune, not only named after water god but is the 8th closest planet from the Sun as well the furthest. Neptune is worth 1000, so pretty much one thousand Mercury, two hundred Venus, hundred Earth, fifty Mars, twenty Jupiter, ten Saturn or two Uranus.

Pluto
Pluto, the dwarf planet this is the furthest away you can get from the sun in the 1stpart of the Milky Way! Pluto is worth 10 000, so pretty much ten thousand Mercury, two thousand Venus, one thousand Earth, five hundred Mars, two hundred Jupiter, one hundred Saturn, twenty Uranus or ten Neptune