This is the 16760th most frequent Turkish word.
yıldızları
"Yıldızları" means "the stars" in English.
Here, 'yıldızları' is the accusative plural form of 'yıldız' (star), indicating specific stars being observed.
Yıldızları gece gökyüzünde izleyebiliriz.
We can watch the stars in the night sky.
'Yıldızları' in this context is also the accusative case, used for the action of counting applied to the stars.
Yıldızları saymak imkansızdır.
It is impossible to count the stars.
In this sentence, 'yıldızları' as the object indicates the stars being imagined by the children.