Stellar Data Assistant

An application designed for astronomers to study stars.

The main function:
Calculating part of the researched star data can quickly calculate the core and surface data of the star.
In addition, the calculated results can be shared through email, Whatapp and other applications.

Explanation of some astrophysics parameters:
a polytrope refers to a solution of the Lane–Emden equation in which the pressure depends upon the density in the form.
where P is pressure, ρ is density and K is a constant of proportionality. The constant n is known as the polytropic index; note however that the polytropic index has an alternative definition as with n as the exponent. This relation need not be interpreted as an equation of state, which states P as a function of both ρ and T (the temperature); however in the particular case described by the polytrope equation there are other additional relations between these three quantities, which together determine the equation. Thus, this is simply a relation that expresses an assumption about the change of pressure with radius in terms of the change of density with radius, yielding a solution to the Lane–Emden equation.