非常有意思的发现！我很好奇它到底在算些什么。有什么是对天文学家有用的吗？还是纯粹是扯淡的玄学？这些计算是确定性的吗？有本很棒的书叫《Practical Astronomy with your Calculator》（用计算器学实用天文学）；不知道占星术里对应的神书会是哪本。
Very curious find! I wonder what sort of calculations it's doing. Anything that would be useful to an astronomer? Or just weird bunko? Are the calculations deterministic? There's a great book called Practical Astronomy with your Calculator; I wonder what the astrological analog would be.
为什么这玩意儿还需要 AI 啊？太阳又不会乱蹦乱跳。在这儿 [0] 大概就能找到你需要的所有资料了。[0] Practical Astronomy with your Calculator https://www.amazon.com/dp/0521356997/ref=cm_sw_r_cp_api_i_-v...
Why is AI even needed? It’s not like the sun dances around. Could probably find enough information here [0] what is needed. [0] Practical Astronomy with your Calculator https://www.amazon.com/dp/0521356997/ref=cm_sw_r_cp_api_i_-v...
时间上的这个偏差在算法所依据的那本书里有解释（《Practical Astronomy with Your Calculator》，这本书还把天文学计算中的一大堆其他概念和模型讲得非常透彻）。1月0日其实是讲得通的，因为一年始于1月1日。你算一年的第几天是从1开始，而不是……
This discrepancy with time is explained in the book the algorithm is based on (Practical Astronomy with Your Calculator, which also does a good job explaining a ton of other ideas and models in astronomical calculation). January 0th makes sense because a year starts on January 1st. You count days of the year from 1 instead…
……想达到的效果。我之前研究这个是为了给朋友制作农历/阴历日历。我是从 Keith E. Brandt 写的 BSD Games 程序 pom[0] 里获取月相预测的，而它本身就是基于 Peter Duffett-Smith 的《Practical Astronomy with Your Calculator》[1]。月食预测则来自 Xavier Jubier 的 Basic Lunar Eclipse and Phase Calculator[2]。这些对于近期来说效果很好，精度也挺不错的……
…want to be. I looked into this so I could generate lunar calendars for friends. I got the phases of the moon predictions from the BSD Games program pom by Keith E. Brandt[0], which is itself based on 'Practical Astronomy with Your Calculator'[1] by Peter Duffett-Smith. Lunar eclipse predictions came from the Basic Lunar Eclipse and Phase Calculator by Xavier Jubier[2]. These work well for the near future and with a reasonable amount of precision…
……用来计算月相的日期。如果指定了 -d 但没有指定 -t，它将计算当天午夜的月相。另请参阅 Duffett-Smith 的《Practical Astronomy with Your Calculator》。FreeBSD 10.1 2010年7月14日 FreeBSD 10.1
…for which the phase of the moon has to be calculated. If -d but not -t has been specified, it will calculate the phase of the moon on that day at mid‐ night. SEE ALSO `Practical Astronomy with Your Calculator' by Duffett-Smith. FreeBSD 10.1 July 14, 2010 FreeBSD 10.1
……把它接到了我的 VIC20 上。我写了个程序，能显示木星的四颗大卫星——木卫一、木卫二、木卫四和木卫三的位置。计算是基于 Peter Duffet-Smith 的书《Practical Astronomy with your Calculator》里的一个公式。后来他们又出了一本类似的书，里面带 BASIC 代码，我也买了。两本都是小线圈本，三十多年后的今天我已经给弄丢了。热敏打印机挺好玩的……
…interfaced it to my VIC20. I wrote a program that showed the position of Jupiter's four large moons - Io, Europa, Callisto, and Ganymede. The calculation was based on a formula in Peter Duffet-Smith's book, "Practical Astronomy with your Calculator". They came out with a similar book after with code in BASIC, which I bought too. They were both little sprial-bound books that I have since lost thirty-plus years later on. The thermal printer was fun…
非常有意思的发现！我很好奇它到底在算些什么。有什么是对天文学家有用的吗？还是纯粹是扯淡的玄学？这些计算是确定性的吗？有本很棒的书叫《Practical Astronomy with your Calculator》（用计算器学实用天文学）；不知道占星术里对应的神书会是哪本。
Very curious find! I wonder what sort of calculations it's doing. Anything that would be useful to an astronomer? Or just weird bunko? Are the calculations deterministic? There's a great book called Practical Astronomy with your Calculator; I wonder what the astrological analog would be.
为什么这玩意儿还需要 AI 啊？太阳又不会乱蹦乱跳。在这儿 [0] 大概就能找到你需要的所有资料了。[0] Practical Astronomy with your Calculator https://www.amazon.com/dp/0521356997/ref=cm_sw_r_cp_api_i_-v...
Why is AI even needed? It’s not like the sun dances around. Could probably find enough information here [0] what is needed. [0] Practical Astronomy with your Calculator https://www.amazon.com/dp/0521356997/ref=cm_sw_r_cp_api_i_-v...
时间上的这个偏差在算法所依据的那本书里有解释（《Practical Astronomy with Your Calculator》，这本书还把天文学计算中的一大堆其他概念和模型讲得非常透彻）。1月0日其实是讲得通的，因为一年始于1月1日。你算一年的第几天是从1开始，而不是……
This discrepancy with time is explained in the book the algorithm is based on (Practical Astronomy with Your Calculator, which also does a good job explaining a ton of other ideas and models in astronomical calculation). January 0th makes sense because a year starts on January 1st. You count days of the year from 1 instead…
……想达到的效果。我之前研究这个是为了给朋友制作农历/阴历日历。我是从 Keith E. Brandt 写的 BSD Games 程序 pom[0] 里获取月相预测的，而它本身就是基于 Peter Duffett-Smith 的《Practical Astronomy with Your Calculator》[1]。月食预测则来自 Xavier Jubier 的 Basic Lunar Eclipse and Phase Calculator[2]。这些对于近期来说效果很好，精度也挺不错的……
…want to be. I looked into this so I could generate lunar calendars for friends. I got the phases of the moon predictions from the BSD Games program pom by Keith E. Brandt[0], which is itself based on 'Practical Astronomy with Your Calculator'[1] by Peter Duffett-Smith. Lunar eclipse predictions came from the Basic Lunar Eclipse and Phase Calculator by Xavier Jubier[2]. These work well for the near future and with a reasonable amount of precision…
……用来计算月相的日期。如果指定了 -d 但没有指定 -t，它将计算当天午夜的月相。另请参阅 Duffett-Smith 的《Practical Astronomy with Your Calculator》。FreeBSD 10.1 2010年7月14日 FreeBSD 10.1
…for which the phase of the moon has to be calculated. If -d but not -t has been specified, it will calculate the phase of the moon on that day at mid‐ night. SEE ALSO `Practical Astronomy with Your Calculator' by Duffett-Smith. FreeBSD 10.1 July 14, 2010 FreeBSD 10.1
……把它接到了我的 VIC20 上。我写了个程序，能显示木星的四颗大卫星——木卫一、木卫二、木卫四和木卫三的位置。计算是基于 Peter Duffet-Smith 的书《Practical Astronomy with your Calculator》里的一个公式。后来他们又出了一本类似的书，里面带 BASIC 代码，我也买了。两本都是小线圈本，三十多年后的今天我已经给弄丢了。热敏打印机挺好玩的……
…interfaced it to my VIC20. I wrote a program that showed the position of Jupiter's four large moons - Io, Europa, Callisto, and Ganymede. The calculation was based on a formula in Peter Duffet-Smith's book, "Practical Astronomy with your Calculator". They came out with a similar book after with code in BASIC, which I bought too. They were both little sprial-bound books that I have since lost thirty-plus years later on. The thermal printer was fun…