Original Text
In the beginning of the year Melkejal rises first and rules, who is named +Tam'aini+ and sun, and all the days of his dominion whilst he bears rule are ninety-one days.
Simple English
At the start of the year, the star Melkejal appears first and takes charge. It's also called Tam'aini and is associated with the sun. It rules for a total of ninety-one days.