stellar magnitude

17 LETTERS · STARTS WITH S

stellar magnitude is a valid 17-letter word worth 20 points in Scrabble and 26 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

S1T1E1L1L1A1R1M3A1G2N1I1T1U1D2E1

1 + 1 + 1 + 1 + 1 + 1 + 1 + 0 + 3 + 1 + 2 + 1 + 1 + 1 + 1 + 2 + 1 =20 PTS

DOUBLE WORD → 40TRIPLE WORD → 60

MEANING

What does stellar magnitude mean?