Things I look up: SWTOR planets by level

If you do any hopping around outside of the class quest line, its pretty easy to forget what level each planet covers / when to do any bonus series / when you can hop into a flashpoint.  Fortunately, from the forums, and a couple infographics, here are SWTOR's planets, instances, and bonus series by level.


EMPIRE 
(P)  Korriban / Hutta 1-10 
(I)  Black Talon - 8
(P) Dromund Kaas 10-16 
(I)  Hammer Station - 15
(P)  Balmorra 16-20 
(I)  Athiss - 19
(B)  Balmorra Bonus Series 20-22 
(P)  Nar Shadda 20-24 
(I)  Mandalorian Raiders - 25

(P)  Tattooine 24-28 
(B)  Tattooine Bonus 28-30 
(I)  Cademimu - 29
(P)  Alderaan 28-32 
(I)  Boarding Party - 32
(B)  Nar Shadda Bonus Series 31-34 
(P)  Taris 32-36 
(I)  The Foundry - 35
(B)  Taris Bonus Series 35-37 
(P)  Quesh 36-37 
(P)  Hoth 37-41 
(I)  Colicoid War Games - 39
(B)  Alderaan Bonus Series 40-44 
(P)  Belsavis 41-44 
(I)  Red Reaper - 44
(P)  Voss 44-47 
(B)  Voss Bonus Series 1 47-49 
(B)  Voss Bonus Series 2 47-49 
(B)  Voss Bonus Series 3 47-49 
(B)  Hoth Bonus Series 47-49 
(P)  Corellia 47-50 
(I)  Battle of Ilum - 50
(I)  False Emperor - 50
(B)  Belsavis Bonus 50 
(P)  Ilum 50 




REPUBLIC 
(P)  Tython / Ord Mantell 1-10 
(I)  Essles - 8
(P)  Coruscant 10-16
(I)  Hammer Station - 15 
(P)  Taris 16-20 
(I)  Athiss - 19
(B)  Taris Bonus Series 20-22 
(P)  Nar Shadda 20-24 
(I)  Mandalorian Raiders - 25

(B)  Tattooine Bonus 28-30 

(P)  Tattooine 24-28 
(I)  Cademimu - 29
(P)  Alderaan 28-32 
(I)  Taral V - 32
(B)  Nar Shadda Bonus Series 31-34 
(P)  Balmorra 32-36 
(I)  Maelstrom Prison - 35
(B)  Balmorra Bonus Series 1 35-37 
(B)  Balmorra Bonus Series 2 36-38 
(P)  Quesh 36-37 
(P)  Hoth 37-41 
(I)  Colicoid War Games - 39
(B)  Alderaan Bonus Series 40-44 
(P)  Belsavis 41-44 
(I)  Red Reaper - 44
(P)  Voss 44-47 
(B)  Voss Bonus Series 1 47-49 
(B)  Voss Bonus Series 2 47-49 
(B)  Voss Bonus Series 3 47-49 
(B)  Hoth Bonus Series 47-49 
(P)  Corellia 47-50 
(I)  Battle of Ilum - 50
(I)  False Emperor - 50
(B)  Belsavis Bonus 50 
(P)  Ilum 50


(Both these omit the bonus series... which is a shame, because they're great content for second time levelers)
OldRepublic.net has an excellent flowchart of planets and instances by level.
Force Junkies has a nice map.