I tend to find hem at least once a week. Sometimes two nights in a row.
They always appear for me when celeste is in town, though usually after midnight if it's clear.
Having sound on is a good idea so you can listen out for a twinkle soundm miss one and another will appear... maybe even 4-5
It may not matter, but i did notice more stars seem to shoot near the town hall, so maybe the angle your facing matters? Remember to have empty hands and also keep watching, they come in wave's and if you can look up for half an hour you may get 4-5 waves totalling 10-15 stars. I have the vlume up, do other things and listen out for the sound.
The most metal of fish. ACC time +13
Catalogue and Wishlist (lf): https://villagerdb.com/user/emiru