Hello,Bishan
It is purely depends on your interest in what field you want to make your career better. But i will suggest some points to you about the two branches.

Compare to Aeronautical engineering the Aerospace engineering is best.The both degrees is specified to design the aircraft.Aerospace engineering concerned with designing and building aircraft and space craft. Aerospace engineering can be divided into two specializations.
Aeronautical engineering and astronautical engineers.
Aeronautical engineering is practice of designing and building aircraft like airplanes and helicopters.

Aerospace engineering and astronautics:
Here some of the courses like
Space craft designing
Space craft dynamics etc.

Here in Aerospace engineering we have two specializations and have wide scope in future.


If you have any other doubts let me know.

Thank you!!

hello aspirant,
A degree in both aeronautical and aerospace engineering helps students to design aircraft.
strictly speaking,  aeronautical engineering is a branch of aerospace engineering.
so, definitely "aerospace engineering" is the best option .
Aerospace engineering is related to designing and building aircraft.
Degree in aerospace helps in variety of ways to succeed but whereas,degree in aeronautical involves concentrates/ focus in a one way.
By the way, the average salary for a aerospace engineer is 109,650$
there are many careers related to aerospace engineering like,
1)Architectural and engineering managers
2) computer hardware engineers
3) Electrical and Electronics technical engineer etc...
thank you