Sky & Telescope
Getting started
Great starting video - what to avoid
Start with good binoculars. Get to know the sky first. Know what to look for.
Free astronomy software.
Telescope dot com
What I have discovered is that big bad a$$ telescopes will kill your interest rather quickly.
Too many variables that will bite you. Start simple and go slow. So much out there.
There are dozens of Youtube videos that are great. The simpler the telescope, the more fun it is to use.
However, you don't want to go cheap.
I'm about to pull the trigger on 10.5 x 70mm binoculars and they ain't cheap, nor lightweight. But the view of the sky will be priceless. They are massively heavy, so it is recommended to get 10 x 50 or
smaller magnification and use a good tripod. Purchase BAK4 prisims with fully coated lenses, made for astronomy.
You will never be able to compete with the Hubble space telescope, so you will want to lower your expectations.
I bought my son an 8" Dobs reflector telescope. A big long tube with an 8" mirror at the bottom. We can see Saturn's rings just fine with that monster and it is amazing. No electronics, but a blast to play with. You can see Jupitor's spots and moons quite clearly. With 10 x 50 binoculars (and smaller), you can see Jupitor's moons quite clearly, but not the bands of color. With the binoculars, you can see the larger constellations and brighter galaxies and comets when close enough.
Visit a local astronomy club and see what they are using. Some of their home built scopes are moved around in large vans. But, the more fun scopes will fit under your arm pit. Avoid the department store crap.
Good brands are Celestron and Orion. The videos are more helpful than the stupid reviews, you know..."Best 5 telescopes for 2021" with links to Amazon ( junk reviews). The Youtube videos seem to be honest. Most seem to speak honestly on their experiences on what works and what doesn't. A big problem I have found is that scopes arrive out of collimation right out of the box. The mirrors or optics are out of alignment. A big bummer that will kill the hobby before ever getting started. A Dobs reflector scope is very easy to recollimate (calibrate).
These are delicate instruments and optics, but quite capable with an experienced user.
My next scope will be a portable
Cassegrain. Not too big or too small. A lot of light gathering ability.
I'm still learning as well, so I appreciate all the advice I can get too.
If you just want to look at Orca killer whales eating a seal, then maybe a good wildlife spotting scope is what you need. However, you will still need a good tripod as a fly landing on the scope with throw off the view from shake or vibration. The higher the magnification, the more difficult the view. Do a lot of reading to learn the differences in scopes.
Hope that helps