Jan Oort vs Oort

Jan Oort and Oort both are nouns.

Word	Noun	Adjective	Verb	Adverb
Jan Oort	Yes	No	No	No
Oort	Yes	No	No	No

As nouns, Jan Oort and Oort are synonyms defined as:

Jan Oort and Oort: Dutch astronomer who proved that the galaxy is rotating and proposed the existence of the Oort cloud (1900-1992)

Other synonyms of Jan Oort include Jan Hendrix Oort.

Jan Oort (noun)	Oort (noun)
Dutch astronomer who proved that the galaxy is rotating and proposed the existence of the Oort cloud (1900-1992)	Dutch astronomer who proved that the galaxy is rotating and proposed the existence of the Oort cloud (1900-1992)