Which lens would be better for astrophotography on my Nikon D7200 (DX)?

I've been looking online for a while trying to decide which lens to get and I've narrowed it down to two. The Rokinon 16mm f/2.0 ED AS UMC CS Lens for Nikon F Mount which is designed for an APS-C sensor (DX) and the Rokinon 24mm f/1.4 ED AS UMC Wide-Angle Lens for Nikon which is designed for a full frame sensor (FX). I just want to know which one would take better photos. I'm aiming for landscape shots with a starfield or the Milky Way in the background and maybe a few time-lapse videos as well.
Any help with this would be great, if you ve had experience with both these lenses on a DX camera what was it like. If you could post pictures or links to photos that you ve taken with either of these lenses on a DX camera that will be cool.

A wide angle lens like the 16 mm is just fine for shooting landscapes of the night sky, however you need to be far from the city lights for the most impact.

Just knowing the angle of view of those two lenses should tell you what you want to know.

In the future if you have a question about what various focal length lenses "wee", you can visit the link below

If you ever get the urge to shoot deep space, then you will need a telescope with computer controlled motor so you can take long exposures and still keep the telescope aimed at the part of the sky that interests you.

Such a telescope (like a Newtonian 1000 mm) can cost as little as $1,000, but a telephoto lens that is 800 mm, costs closer to $17,000. As you can see, a telescope is much more affordable (no auto-focus --- useless for shooting the night sky and no automatic aperture control are just some of the cost savings)