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Note: now that it is a binary star the planets had to be placed around the center barycenter and their names were placed as VZ 21487 AB, VZ 21487 AC. because I did not find another way to name on these planets.
Do you still call your planets 'VZ 21487 AB
' and 'VZ 21487 AC
This is not good.
The capital letters A, B, AB, BC
and so on are reserved for star components of a multiple star system.
The small letters should be reserved for exoplanets.
So Roman numerals remain to name planets!
Of course, you can give your planet proper names, but you should give it a name with Roman numeral as additional name.
Planet "Billy/VZ 21478 I"
(Of course you can omit the proper name.)
You can use the names 'VZ 21478 I
' and 'VZ 21478 II
' as 'ParentBody
' if your planets should also have moons.
That someone has already used the same names is unlikely, with names like Billy or Bob, that can easily happen. And as 'ParenBody' one should always take unique names otherwise it may overlap with other addons.
In addition, you should call the star 'VZ 21478
' as 'VZ 21478 A
'. This could also be done with a double name, for example:
Star "VZ 21478/VZ 21478 A"