Help, unsure if camera requires fixing

[DomTT]

Good evening everyone,

I am looking for a bit of advise. I have a Samsung galaxy 23 Ultra (think it's still under warranty). 

In recent weeks, I have been attempting to take pictures of the night sky and the aurora (sometimes in night mode and sometimes in expert RAW) it appears I have been unsuccessful with both, but I have attached some images below; in almost all my images I have an arch on the top right hand side, and I cannot work out what is going on. 

It's not light pollution, my lens is clean with no smudges, it just shows up on my images. Is there something wrong with the camera lens ? Or is this I'm doing wrong when taking nighttime pictures?

Any help would be appreciated 👍🏼 

Many thanks,

Dom 

Arch showing again on the top right of the picture 

Very grainy star picture, taken on a 2 minute exposure in RAW

Again, arch top right corner 

[GoanGeek]

Hi.

You seem to have taken some really nice shots there😊.

About the arc? Have you got a case on?
If so maybe try removing it and see if that's the issue.

Also if there is any film on the camera lens. I remember my s21 ultra had some protective film covering the lenses.