Henry Norris Russell vs Henry Russell

Henry Norris Russell and Henry Russell both are nouns.

Word	Noun	Adjective	Verb	Adverb
Henry Norris Russell	Yes	No	No	No
Henry Russell	Yes	No	No	No

As nouns, Henry Norris Russell and Henry Russell are synonyms defined as:

Henry Norris Russell and Henry Russell: United States astronomer who developed a theory of stellar evolution (1877-1957)

Other synonyms of Henry Norris Russell include Russell.

Henry Norris Russell (noun)	Henry Russell (noun)
United States astronomer who developed a theory of stellar evolution (1877-1957)	United States astronomer who developed a theory of stellar evolution (1877-1957)