Answer :
The local sidereal time when the star clock reads 9 o'clock cannot be determined without more information, such as the date or the GMST.
The local sidereal time can be determined by converting the star clock reading into hours and then adding it to the Greenwich Mean Sidereal Time (GMST).
To convert the star clock reading of 9 o'clock to hours, we need to know the scale of the clock. If the scale of the star clock is 24 hours, then 9 o'clock would be equivalent to 9 hours. Next, we need to determine the GMST. The GMST represents the sidereal time at the Prime Meridian (Greenwich, England) and is usually given in hours.
Without more information about the specific date, it is difficult to determine the exact GMST. The GMST changes gradually over time due to the Earth's rotation and the position of the stars. Therefore, we would need to know the date to calculate the GMST accurately.
You can learn more about sidereal time at: brainly.com/question/29217518
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