Natalie Portman with her son, Aleph
10/21/2011 AT 09:35 AM EDT
Baby Aleph is quite the jet-setter!
and fiancé Benjamin Millepied
, who reside in New York City
, have already taken their 4-month-old son on a tour of Paris
, and now he's getting a look at sunny California.
The Oscar-winning actress, 30, held tight to Aleph, who was dressed for fall in a green onesie, out to a friend's home in Hollywood on Thursday.
The blue-eyed kid, who was born in June
, was named for the first letter of the Hebrew alphabet.
His parents met while filming ballerina thriller Black Swan