Use a tripod or stable surface
Clean the camera lens
Turn off flash
Turn on Night mode if available
Set the exposure time to the longest option
Use the rear camera
Tap and hold to lock focus on a bright star or distant object
Lower exposure if the sky looks too bright
Use a camera app with manual controls if needed
Set ISO as low as possible
Set shutter speed as long as possible
Use a timer or remote shutter to avoid shake
Shoot in a dark location away from city lights
Avoid moonlit nights for better star visibility
Keep the phone completely still during the exposure
Take multiple shots and choose the sharpest one
Edit the photo afterward to increase contrast and reduce noise