9 chords contain the 1st, 3rd, 5th, b7th, and 9th notes of the major scale.  As is common, the above shape omits the 5th.

Dmaj9

maj9 chords contain the 1st, 3rd, 5th, 7th, and 9th notes of the major scale.  As is common, the above shape omits the 5th.

Dmin9

min9 chords contain the 1st, b3rd, 5th, b7th, and 9th notes of the major scale.  As is common, the above shape omits the 5th.

D7b9

7b9 chords contain the 1st, 3rd, 5th, b7th, and b9th notes of the major scale.  As is common, the above shape omits the 5th.

D7#9

7#9 chords contain the 1st, 3rd, 5th, b7th, and #9th notes of the major scale.  As is common, the above shape omits the 5th.

This chord shape is commonly referred to as "the Hendrix chord."

9 Tones

Diagram Collection

D9