曙 is a Japanese kanji written with 17 strokes, listed here under the keyword “dawn”. It is built from 日 (day) and 署 (signature). In Remembering the Kanji by James W. Heisig it is frame 2524.
On KumiJi Glyph Explorer, open the parts search and type “day” + “signature”. 曙 is among the results, together with every other character containing the same shapes.
Open 曙 in the interactive kanji search
to expand every part down to its smallest pieces, add your own names and mnemonic stories,
or search for other characters by their parts.