AS VISITED BY THE DOCTOR
The Second Doctor: 25th Century. [C5.1, The Tomb of the Cybermen.]
The Sixth Doctor: 26th Century. [C22.1, Attack of the Cybermen.]
LOCATION
Universe: Normal space.
Galaxy: Milky Way.
System: Tremulus Three.
Human Colony: No.
AS VISITED BY THE DOCTOR
The First Doctor: Circa 2263. [C1.2, The Daleks.]
The Second Doctor: The Far Future. [C4.9, Evil of the Daleks]
The Fourth Doctor: Circa 1776. [C12.4, Genesis of the Daleks.]
Circa 2979. [C17.1, Destiny of the Daleks.]
Also, refer to ADDITIONAL NOTES at the very end which describes items of note that concern Doctors:
Third, 
Seventh, 
Eighth and 
Ninth.
LOCATION
Universe: Normal Space.
Galaxy: A galaxy beyond the Milky Way [Refer to ADDITIONAL NOTES.]
System: Twelth planet oribiting Skaro’s sun.
Human colony: No.
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