Hi.

Moved into a new house last August. This beautiful tree is now blooming in the backyard. I have no idea what it is. Want to know so I can take good care of it.

We're in NJ, and it "popped" during the past weekend's unseasonably warm temperatures.

Thanks.

Apple flowers? Just a guess but it looks like my neighbors flowers.

Can you get pictures of the trunk and branches?

With just one stigma it is a cherry. =one stone in the middle.
Prunus sp.

Apple or Malus have 5 stigma. =5 pips

Amelanchier, although I'm not sure which one:

https://www.google.ca/search?q...

See also Amelanchier in the database here on NGA:
https://garden.org/plants/sear...

Can you get a picture of some of the leaves? It might help to distinguish which one.

Edited to add, this page on identification of Amelanchier in New England may help:

https://gobotany.newenglandwil...