Astrophysics study book

You may be planning to study a single text from the first page up to the back cover
To get a good idea of nowadays astrophysics across different fields
Without entering in very detailed phenomenology.
In that case
This is a good choice:
Astrophysics for Physicists
By Arnab Rai Choudhuri
2012 Cambridge University Press

The Cambridge Astrophysics Series (CAPS) was founded in 1978, and has become an important source of high-quality books in astrophysics, written for professionals and graduate students

The series is dedicated to the publication of research level monographs, extended reviews, and graduate textbooks, and covers all areas of contemporary astrophysics

You may be planning to study a single text from the first page up to the back cover, to get a good idea of nowadays astrophysics across different fields, without entering in very detailed phenomenology

In that case, this is a good choice: Astrophysics for Physicists, by Arnab Rai Choudhuri, 2012 Cambridge University Press