First planets
The following is a list of the first planet in each of their respective star systems.

A
Alpha I
Alpha Majoris I
Angel I

B
Bajor I
Beta Berman I
Beta Penthe I
Beth Delta I
Bezride (Pallas 14 I)

C
Cardassia I
Castal I

D
Dannus I
Doraf I
Dramia

F
Finibus I

H
Hindmar

K
Kabrel I
Korris I

L
L-374 I

M
Meldrar I
 (Sol I)
Meridian
Moab I

N
Nelvana I

O
Omega Centus I
Orion I

P
Paxan homeworld
Persephone I

S
Sarpeidon (Beta Niobe I)
Sigma Draconis I

T
T'Lani Prime (T'Lani I)
Talos I
Terra 10 (Cepheus I) 
Totoro (Braslota I)

V
Valo I
Vaytan I
Veridian I

Y
Yridia I

External link
 

cs:První planety
it:Primo pianeta
 01