As astrologers, they were wittingly or unwittingly led by what appeared to them as a moving "star."
The visitors to my house can see the stars from my garden.
it is unknown how many wise men from the east came, however there were only three gifts given. most likely they were rich astronomers and scribes looking at the stars and reading the old testament. mat 2:1-9
There were no "scientists". The closest would be the magi who studied the stars and other phenomena. Scribes were learned men, but they were interested in writings, rather than what we now know as the sciences.
There are very many of them so they have to be studied because they are an important class of stars.
Mick Jagger
she studied stars
Over 400
because jesus made it and the stars giving lights when its evening
People in the past usually studied the stars because they used it to make Calenders and days
it was first studied by man when he was just created, he looked up at the stars and wondered. Many people think the Mayans were.
An "observatory".
The Bible does not say there were three kings. Only that those wise men who came had three presents: gold, frankincense and myrrh. they were most likely Eastern Magi. These Magi were gentiles who studied astronomy or the stars and their positions. Not astrology, or magic, which Western Magi had studied and were from the Rome area.