I saw a lot of names, canon, and not canon, I know there is constitution and sovereign class, it can have names of locations of earth.

Lower decks ship is the Cerritos, which is a "California" class, together with other ones which I presume have name cities or provinces of that state, but since Lower Decks is more comedy, I start to have doubts about the true canon name and ranks of each ship, since the fanpages and wikis put ships which are doubtly canon.

Most of the time are just names like Rio Grande, but I think that was a shuttlecraft or a runabout.

So still, I don't get the criteria of ranks of names for the ships in general.

This are the kind of doubts I have when I try to understand things related with the lore.

EDIT:
So, reading a bit, historically aircraft carrier enterprise was class Nimitz because, well, they like the name, so I can give an idea how can work in Star Trek. I didn't know ships have "class" and random names, I always thought it was more logically choosen. Like, they make 10 ships which are from one class, and given with a name for each one, probably throwing a bottle on it.

Sumarise: Now I know ships has random names and class with all similar ships, but class is not equal of ranks or something. Like hierarchy, that's why I didn't get it.

I didn't know all of this before posting this.

The naming convention is vague.

LD's California class is a dig at what the writers perceive as shit or boringly average California cities nobody knows if you don't live there.

DS9 had some consistency with naming all runabouts after earth rivers.

All other names are up to the writers. So you get a Crazy Horse next to a Shenzhou, a Hood next to a Defiant.

Canon probably runs along the Memory Alpha/Beta divide.

Hey, Frank Yokoyama, who was mayor of Cerritos at the time, went to STLV last year to give Dawn Lewis a citation (or some other famous word; I forgot what it was called) in honor of playing Freeman.

Commendation?

Edit: proclamation

Edit 2: both?

I notice california class was a joke, that's why I ask how much is canon in general.

I look that Zhenzhou and is "Walker-class" what does class means? At least Crazy horse is from the original series, so maybe was a time of brainstorming.

I don't get it.

I read the comment and thought commendation was the word. Read an article that called it a proclamation, then the article said the proclamation commended her...

It's all based on navies here on Earth. They chose the language to make certain ships this-or-that class. There are no definitive rules so far as I'm aware. A certain class of submarines would be designated something class because they shared the same weapons or the same propulsion system. So when sci-fi writers picked up this ball they played fast and loose with already fast and loose rules.

You may need to clarify what you mean by canon in this context exactly. If this Walker class appeared in a live action TV show I would say it's canon. If it's in a novel or an animated show I'd say it's not or not necessarily. Trekkies can spend weeks debating this sort of thing.

Some good answers here but if you're ever in doubt about what is isn't canon- Memory-Alpha is your friend.

So, reading a bit yesterday and reading your comment now, historically aircraft carrier enterprise was class Nimitz because, well, they like the name, so I can give an idea how can work in Star Trek. I didn't know ships have "class" and random names, I always thought it was more logically choosen.

Sumarise: Now I know ships has random names and class with all similar ships, but class is not equal of ranks or something. Like hierarchy, that's why I didn't get it.

I think a comedy is "less canon" because calling Cerritos a "California class" is more like saying "this is the most wimp or weakling starfleet ships ever". So I believe Lower Lecks is canon, but not everything can be taked into a 100% serious story. But that's just my thought.

I think it was declaration. I can’t even find a copy of the text anywhere. I don’t remember what it said exactly, and I was there!