Determine the approximate sidereal time at noon on September 23 in Cheboksary.
| September 13, 2020 | Education
We assume that September 23 is the day of the autumnal equinox, and on the day of the spring equinox the sidereal time at noon is 0 hours. In addition, we take into account that the sidereal clock “runs away” by 4 minutes per day compared to the sun clock. For half a year the sidereal clock has gone 180 * forward 4 = 720 min. = 12 hours.
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