This is the 5103rd most frequent Russian word.
наблюдал
"Observed" or "watched."
In this sentence, 'наблюдал' means 'observed' or 'watched', indicating the act of attentively looking at the stars.
Он наблюдал за звездным небом.
He observed the starry sky.
Here, 'наблюдал' implies 'monitored' or 'kept track', reflecting tracking the developments or achievements.
Учитель наблюдал за успехами своих учеников.
The teacher monitored their students' progress.
In this usage, 'наблюдал' refers to 'studied' or 'analyzed', pertaining to systematically examining and recording observations.