This makes me want to figure out what some other characters’ signs would be (based on first appearances or logic, like Della and Donald having the same birthday). Let’s see…

Aquarius:

(Peg-Leg) Pete – February 15

Pisces: 

Clarabelle Cow – March 17

Aries:

Magica de Spell – April 17 (based on when The Midas Touch was apparently written)

Taurus: 

Horace Horsecollar – May 9

Gus Goose – May 19

Gemini: 

Goofy – May 25

Daisy Duck – June 7

Donald & Della Duck  – June 9

Cancer:

Scrooge McDuck – July 22 (based on when Christmas on Bear Mountain was apparently written)

Leo:

Fethry Duck – August 2

Clara Cluck – August 11

Gladstone Gander – August 15 (based on when Wintertime Wager was apparently written)

Virgo: 

Gyro Gearloose – August 23 (based on when Gladstone’s Terrible Secret was apparently written)

José Carioca – August 24

Oswald the Lucky Rabbit (and also: Pluto!) – September 5

Morty & Ferdie Fieldmouse – September 18

Libra: 

Ludwig von Drake – September 23

Grandma Duck – September 27

Huey, Dewey & Louie Duck – October 17

Max Goof – October 21

Scorpio: 

Mickey & Minnie Mouse – November 18

Sagittarus:

Ortensia – November 28 (because if I’m gonna include Oswald on this list, she deserves to be here too)

Panchito Pistoles – December 21

Capricorn:

?