Hi, and Welcome to UHH Astrophotography!
Ah, another victim finds the spiders web of this.
Your budget won't take you far in this habit. It can get you started, but you will be frustrated soon.
I think finding any astronomy clubs is great advice.
At least you have an idea of your first endeavors, Solar system/planetary. So you can do your research as to what equipment will get you started. Also, right now there are planets in view.
But if you are interested in starting now, you could begin shooting Star Trails tonight with your DSLR, the widest lens you have, and a tripod. Looky here:
https://www.google.com/search?q=Startrails&rlz=1C1CHBH_enUS779US779&oq=Startrails&aqs=chrome..69i57j0l5.4623j0j7&sourceid=chrome&ie=UTF-8This is great, free software, to build your images into star trails. If you add an Intervalometer to run your camera you can get series images to stitch together in Startrails. What's an Intervalometer?
https://expertphotography.com/intervalometer-photography/Doing Startrails is a basic beginning to get you started. I started this way, bundled up, operating a shutter release and using my cameras time release function.
I quickly saw the use of an Intervalometer and ordered a wired variety. Now I have a wireless type and can run it from inside the house if I want to.
Stellarium can get you started finding the objects in the sky today, for tonight. Also Free.
https://stellarium.org/ You need to download the correct one for your computer. So look at the options at the top of the linked page.
Like Brian said, the more you can do for Mount, the better your future will be in Astrophotography.
6 of us here got on the AVX bandwagon shortly after it came out. Myself included.
3 of us had catastrophic failures that required returning to Celestron for repairs. Two of us twice.
I still run my AVX. I use a 12 volt AGM battery to run mine. Then charge the battery with my mount disconnected. That has been my proven work around for my lack of trust in Celestron's Chinese electronics.
The same electronics were used in other products, and suffered the same failures in England and other places in the world.
Unfortunately there are few choices to get around Chinese Electronics in astronomy mounts.
But a tracking mount with guidance is really paramount for imaging.
There are so many things you will encounter trying to take pictures of space objects. Earthly vibrations, atmospheric disruptions, and keeping your intended object dead still (Guiding). It's an entirely different ballgame from taking pictures of Earth things, which is what a DSLR is made for.
I started with Star Trails. It was easy. Then one night I took my 20-60x spotting scope out to look at the night sky. Eventually I managed to find The Great Orion Nebula. It was tiny!
But I decided that was what I wanted to do, take pictures of the night sky. Nebula and Deep Space Objects.
I figured if I could reach DSO's, I could come back for the Planets and Moon, later. But DSO and Nebula remain my first love and fascination.
As I researched how to take images of my targeted desires, I found smaller and smaller telescopes were the norm, with better and better optics. I chose an Orion ED80 T.
That is: Extra low Dispersion, 80 mm aperture, triple apochromatic lens.
https://en.wikipedia.org/wiki/ApochromatWhile my choice was towards the lesser expensive option, it is the higher end for Astrophotography. And a refractor telescope. My next best choice was a 100mm and would have set me back at the $2700 mark for a mere 20 mm increase. So I got the $1,000 telescope. After all, I had a lot of other things to buy.
You will likely find your DSLR isn't going to get you very far in outer space. Mine is rigged to mount to my telescope, but the images are so very wide field that the Ring Nebula looks like the eye of a needle.
So I recommend dedicated Astro Cameras for a lot of reasons. First is they are totally electronically controlled. No moving parts.
They just sit there and gather photons from DSO that may or may not actually still exist in our time. Then the timed image is saved to stack, or is stacked by the software running the camera. Building a perceptible image for us to see. I did not want to give my DSLR that kind of abuse. They are finite and do wear out.
Taking 3,000+ images for a Star Trail image in a single night is a considerable amount of whacking of the cameras shutter. Last time I checked my DSLR had something over 80,000 shutter operations. A lot of those have to do with night sky attempts, like star trails, or time lapse imaging.
So there is an intro. Make some Star Trails, explore with Stellarium, and decide what you really want to focus on.
Then study the ways to get those images. Because it takes more than generalities. Each aspect, Planetary, Solar System, Deep Space, each calls for a different approach. Each can call for a different set-up of equipment.
And as Brian said, it can consume large amounts of funds to go where you choose to go.
And know that you will not be able to take Hubble images from Earth. Lord no. Those are actually manufactured.
But you can have a lot of fun trying, and lose a lot of sleep, even wake up out at your telescope and mount with an image on your computer having not watched it become there. Or a bunch of odd appearing hash that looks nothing like what you hoped for.
Do you know where Polaris is? You will making star trails. It's the star that stays almost centered.
Welcome to Insomnia.