Photographing stars requires you to keep your exposure open for a long time. Taking pictures of star trails would take about 30 minutes to three hours. If you multiply that for the 6 stars stated above in the problem then you would be needing that much time if the stars were close and approximately 3 to 18 hours capture their star trails if they were far apart from each other.
He put 3 in the bag because 12 divided by 4 is 3
27 = forty five to the secmventh
-44.09 i dont understand why we must have 20 characters but OK