| 1. | Astronomical yearbooks and calendars for amateur astronomers provide the times of the beginning of the synodic solar rotations as well as the longitudes lo .
天文年历和日历为业余天文学家提供了太阳会合自转周期的始时和经度Lo |
| 2. | The time between successive new moons , the synodic period
两次新月之间相隔29 . 5日，这个盈亏周期称为 |
| 3. | Its synodic period brings it into conjunction with the sun every 398 days and 88 minutes , a little more than a year
它与太阳关联的会合周期是398天零88分，比一年稍长一些。 |
| 4. | Is 29 . 5 days . interestingly , the rotational period of the moon relative to the sun is exactly the same as the synodic period
盈亏月。月球的自转周期刚好和它的绕地公转周期相等，这种情形称为 |
| 5. | Astronomical yearbooks and calendars for amateur astronomers provide the times of the beginning of the synodic solar rotations as well as the longitudes lo
天文年历和日历为业余天文学家提供了太阳会合自转周期的始时和经度lo |
| 6. | Here we assume planets move in circular motion at constant speed , and the synodic periods given above is just an approximate value . actually the planetary motion is full of small variants , and the synodic period values are irrational number . the quotient of two irrational numbers cannot be written as a fraction
最新的消息是，在2000年10月后的六星期内，竟然一口气为土星多发现10颗卫星，让它在刹那间重新超越天王星，成为最星多势众的行星，现在土星有28颗卫星，遥遥领先只有21颗卫星的天王星，木星的卫星数目为18颗，而第四位的海王星则只有8颗。 |
| 7. | We had observed more than ten selected asteroids using 1 - meter telescope in yunnan observatory during 2000 to 2002 . the observational data of seven asteroids had been reduced and analyzed . we have derived their synodic periods and estimated the shape and orientation of rotational axis for one asteroid
为此，我选定了一些直径在125公里左右的小行星进行观测和分析；一方面，测定它们的自转周期，进行“角动量衰减”现象的研究，另一方面，对小行星形状和自转轴指向进行估算，为小行星碰撞演化研究提供更为有利的证据。 |
