我写了一个基于JavaScript的精准农历计算程序,供你参考。

程序中进行了力学时与UTC时的转换,光行差、光行时修正,岁差改正,章动改正等

精度很高,程序也不长。共有两个版本,一个是VSOP87+ELP2000-82B的,精度与"日梭万年历"相同，另一个是VSOP87+ELP/MPP02的，其中ELP/MPP02远期精度高于“日梭万年历”,程序中提供了一些坐标变换函数,日月位置计算函数,农历计算算法等

地址如下:http://www.fjptsz.com/xxjs/xjw/rj/113.htm

如有疑问可与我联系 xunmeng04@163.com

 

楼上的可以啊，呵呵，支持！

功夫倒是不费，主要是费空间，存储一万多年的朔、望和节气的精确时间就用了4M多，还没想到更好的办法

不会占空间啊,去除文字说明部分,总共35k左右,如果象"日梭万年历"那么进行加密压缩处理,只需15k-20k就够了,不会占空间,如果适当降低精度,做到15k以下也是可以的,不过压缩以后,程序的可读性变差。

前面几位也提供了其它的算法,我想也是可行的，不过应补上章动及光行差及协调世界时与力学时的差,不然是得不到正确结果的。这几个坐标修正及时间修正主要属于运动学范畴，不难理解。但要想得到正确结果就必须处理这些问题，我的程序中花费了大量代码解决这些问题，所以程序稍长了一些。

楼上的高手，能不能搞一个好一点的C或者C++代码啊，那样看着方便一点

我的一年的信息用了400个字节，每个精确的时间用长整型表示（8个字节）：

    0 ~ 191：8*24，24节气信息，从冬至开始
  192 ~ 295：8*13，朔时刻，若12个朔，则第一个位置存0.000
  296 ~ 399：8*13，望时刻，若12个望，则第一个位置存0.000

这样一万多年不就是4M多吗

有没有什么更好的办法？

jyarmy 兄，您真够累的，10000多年。您辛苦了。望我们更加努力，让我们的农历更加准确，超过已加密的《日棱万年历》。

xjw01兄，您的日历也真够准确的，佩服。 

 

其实，我也很侗服ilovelassie兄。

把精度控制在10秒的节气查表法（春分为例）:
(1)计算出2000年范围内所有春风真实时刻,所有春分时刻用类似儒略计数的方式表达,各年春风记作Zn
(2)利用最小二乘法计算出这些春风时刻的最佳的多项式表达式:
chunFen=A+B*t+C*t*t+D*t*t*t，这样chunFen与真春分时刻En的误差在半小时之内
(3)算出En=Zn-chunFen,把每年的En保存在表中,En占用1个字节,单位是10秒,那用En所表达的时间范围是256*10=2560秒=42分
通过以上算法,每年的节气数据占用24字节
(4)查表过程:Zn = chunFen+En = A+B*t+C*t*t+D*t*t*t+En
(5)朔望的算法也可参考已上算法

有一个小瑕疵:

很多<万年历>除了公元,干支纪年外,都附有中国朝代年号纪年,你这个没有.

最好连日本,越南的年号纪年也附上,连佛历,伊斯兰历都有了,为何没有中国年号纪年?

以下是经典计算星历表的书目（都是外文版的）：

Low-Precision Formulae for Planetary Position , TCVan Flandern and KFPulkkinen , Willmann-Bell,Inc, 1979.

Astronomical Formulae for Calculators , Jean Meeus , Willmann-Bell,Inc, 1985. Astronomical Formulae for Calculators , Jean Meeus , Willmann-Bell,Inc, 1985.

Planetary Programs and Tables from -4000 to +2800 , Pterre Bretagnon and Jean-Louis Simon , Willmann-Bell,Inc, 1986. Planetary Programs and Tables from -4000 to +2800 , Pterre Bretagnon and Jean-Louis Simon , Willmann-Bell,Inc, 1986.

Fifty Year Canon of Solar Eclipses : 1986-2035 , Fred Espenak , Sky Publishing, 1987. Fifty Year Canon of Solar Eclipses : 1986-2035 , Fred Espenak , Sky Publishing, 1987.

Orbital Motion , AERoy , Adam Hilger, 1988. (C) Orbital Motion , AERoy , Adam Hilger, 1988. (C)

The Motion of the Moon , Alan Cook , Adam Hilger, 1988. The Motion of the Moon , Alan Cook , Adam Hilger, 1988.

Practical Ephemeris Calculation , Oliver Montenbruck , Springer-Verlag, 1989. (C) Practical Ephemeris Calculation , Oliver Montenbruck , Springer-Verlag, 1989. (C)

Elements of Solar Eclipse , Jean Meeus , Willmann-Bell,Inc, 1989. Elements of Solar Eclipse , Jean Meeus , Willmann-Bell,Inc, 1989.

Fifty Year Canon of Lunar Eclipses : 1986-2035 , Fred Espenak , Sky Publishing, 1989. Fifty Year Canon of Lunar Eclipses : 1986-2035 , Fred Espenak , Sky Publishing, 1989.

Transits , Jean Meeus , Willmann-Bell,Inc, 1989. Transits , Jean Meeus , Willmann-Bell,Inc, 1989.

Introductory Orbit Dynamics , FPJRimrott , Vieweg, 1989. (C) Introductory Orbit Dynamics , FPJRimrott , Vieweg, 1989. (C)

Astronomical Algorithms , Jean Meeus , Willmann-Bell,Inc, 1991. Astronomical Algorithms , Jean Meeus , Willmann-Bell,Inc, 1991.

Lunar Tables and Programs from 4000 BC to AD 8000 , Michelle Chapront-Touze and Jean Chapront , Willmann-Bell,Inc, 1991. Lunar Tables and Programs from 4000 BC to AD 8000 , Michelle Chapront-Touze and Jean Chapront , Willmann-Bell,Inc, 1991.

Methods of Orbit Determination for the MicroComputer , Dan Boulet , Willmann-Bell,Inc, 1991. Methods of Orbit Determination for the MicroComputer , Dan Boulet , Willmann-Bell,Inc, 1991.

Canon of Lunar Eclipses 1500 BC - AD 3000 , Bao-Lin Liu and Alan D.Fiala , Willmann-Bell,Inc, 1992. Canon of Lunar Eclipses 1500 BC - AD 3000 , Bao-Lin Liu and Alan D.Fiala , Willmann-Bell,Inc, 1992.

Explanatory Supplement to the Astronomical Alamanac , P.Kenneth Seidelmann , University Science Books, 1992. Explanatory Supplement to the Astronomical Alamanac , P.Kenneth Seidelmann , University Science Books, 1992.

Fundamentals of Celestial Mechanics , JMADanby , Willmann-Bell,Inc, 1992. Fundamentals of Celestial Mechanics , JMADanby , Willmann-Bell,Inc, 1992.

Solving Kepler's Equation over Three Centuries , Peter Colwell , Willmann-Bell,Inc, 1993. Solving Kepler's Equation over Three Centuries , Peter Colwell , Willmann-Bell,Inc, 1993.

Analytical Techniques of Celestial Mechanics , Victor A.Brumberg , Springer-Verlag, 1995. Analytical Techniques of Celestial Mechanics , Victor A.Brumberg , Springer-Verlag, 1995.

Astronomical Tables of the Sun, Moon and Planets , Jean Meeus , Willmann-Bell,Inc, 1995. Astronomical Tables of the Sun, Moon and Planets , Jean Meeus , Willmann-Bell,Inc, 1995.

Calendrical Calculations , Nachum Dershowitz and Edward M.Reingold , Cambridge University Press, 1997. Calendrical Calculations , Nachum Dershowitz and Edward M.Reingold , Cambridge University Press, 1997.

Mathematical Astronomy Morsels , Jean Meeus , Willmann-Bell,Inc, 1997. Mathematical Astronomy Morsels , Jean Meeus , Willmann-Bell,Inc, 1997.

Textbook on Spherical Astronomy , WMSmart , Cambridge University Press, 1997. Textbook on Spherical Astronomy , WMSmart , Cambridge University Press, 1997.

The Hipparcos and Tycho Catalogues : Volume 1 : Introduction and Guide to the Data ,European Space Agency, 1997. The Hipparcos and Tycho Catalogues : Volume 1 : Introduction and Guide to the Data ,European Space Agency, 1997.

Spaceflight Dynamics , William E.Wiesel , McGraw-Hill, 1997. Spaceflight Dynamics , William E.Wiesel , McGraw-Hill, 1997.

Astronomy on the Personal Computer , Oliver Montenbruck and Thomas Pfleger , Springer-Verlag, 1998. Astronomy on the Personal Computer , Oliver Montenbruck and Thomas Pfleger , Springer-Verlag, 1998.

Standard C Date/Time Library: Programming the World's Calendars and Clocks , Lance Latham , R&D Books, 1998. Standard C Date/Time Library: Programming the World's Calendars and Clocks , Lance Latham , R&D Books, 1998.

Solar System Dynamics , CDMurray and SFDermott , Cambridge University Press, 1999. Solar System Dynamics , CDMurray and SFDermott , Cambridge University Press, 1999.

Fundamental Ephemeris Computations : For use with JPL Data , Paul J.Heafner , Willmann-Bell,Inc, 1999. Fundamental Ephemeris Computations : For use with JPL Data , Paul J.Heafner , Willmann-Bell,Inc, 1999.

The Orrery : Computer Models of Astronomical Systems , Caxton C.Foster , Willmann-Bell,Inc, 1999. The Orrery : Computer Models of Astronomical Systems , Caxton C.Foster , Willmann-Bell,Inc, 1999.

Astrometry of Fundamental Catalogues : The Evolution from Optical to Radio Reference Frames , Hans G.Walter and Ojars J.Sovers , Springer-Verlag, 2000. Astrometry of Fundamental Catalogues : The Evolution from Optical to Radio Reference Frames , Hans G.Walter and Ojars J.Sovers , Springer-Verlag, 2000.

Einfuhrung in die Himmelsmechanik und Ephemeridenrechung. Theorie, Algorithmen, Numerik , Andreas Guthmann , Spektrum Akademischer Verlag, 2000. (Deutsch) Einfuhrung in die Himmelsmechanik und Ephemeridenrechung. Theorie, Algorithmen, Numerik , Andreas Guthmann , Spektrum Akademischer Verlag, 2000. (Deutsch)

Practical Astronomy with your calculator , Peter Duffett-Smith , Cambridge University Press, 2001. Practical Astronomy with your calculator , Peter Duffett-Smith , Cambridge University Press, 2001.

More Mathematical Astronomy Morsels , Jean Meeus , Willmann-Bell,Inc, 2002. More Mathematical Astronomy Morsels , Jean Meeus , Willmann-Bell,Inc, 2002.

Space Dynamics , GAGurzadyan , Taylor & Francis, 2002. Space Dynamics , GAGurzadyan , Taylor & Francis, 2002.

Astronomy on the Personal Computer , Oliver Montenbruck and Thomas Pfleger , 4th Edition, Springer-Verlag, 2002. Astronomy on the Personal Computer , Oliver Montenbruck and Thomas Pfleger , 4th Edition, Springer-Verlag, 2002.

The Gravitational Million-Body Problem , Douglas Heggie , Piet Hut , Cambridge University Press, 2003. The Gravitational Million-Body Problem , Douglas Heggie , Piet Hut , Cambridge University Press, 2003.

Mathematical Astronomy Morsels III , Jean Meeus , Willmann-Bell,Inc, 2004. Mathematical Astronomy Morsels III , Jean Meeus , Willmann-Bell,Inc, 2004.
 

Fundamentals of Astrometry , Jean Kovalevsky, P.Kenneth Seidelmann , Cambridge University Press, 2004. Fundamentals of Astrometry , Jean Kovalevsky, P.Kenneth Seidelmann , Cambridge University Press, 2004.

Statistical Orbit Determination , Byron D.Tapley, Bob E.Schutz, George H.Born , Elsevier Academic Press, 2004. Statistical Orbit Determination , Byron D.Tapley, Bob E.Schutz, George H.Born , Elsevier Academic Press, 2004.

Methods of Celestial Mechanics Volume 1 : Physical, Mathematical, and Numerical Principles , JGerhard Beutler , Springer-Verlag, 2005. Methods of Celestial Mechanics Volume 1 : Physical, Mathematical, and Numerical Principles , JGerhard Beutler , Springer-Verlag, 2005.

Methods of Celestial Mechanics Volume 2 : Application to Planetary System, Geodynamics and Satellite Geodesy , JGerhard Beutler , Springer-Verlag, 2005. Methods of Celestial Mechanics Volume 2 : Application to Planetary System, Geodynamics and Satellite Geodesy , JGerhard Beutler , Springer-Verlag, 2005. 
   本人评论：在当今中国，这方面的好书真是太难找了，尤其星历表计算方面的书（历书天文学），这是书目是在一个网站上转来的，但是上面所列的书都非常的难找啊。

    我至今还只有一本“Astronomical Algorithms”，即《天文算法》，从网上下载到的。

   其实我认为计算星历表方法的书比较好是：

    1）  Astronomical Algorithms ：, Jean Meeus , Willmann-Bell,Inc, 1991. Astronomical Algorithms , Jean Meeus , Willmann-Bell,Inc, 1991.    （本人已有）

    2）Fundamental Ephemeris Computations : For use with JPL Data , Paul J.Heafner , Willmann-Bell,Inc, 1999.（这本书可以说是星历表程序编制的“圣经”级的专著，可惜我还没有找到）

   3）Calendrical Calculations: The Millennium Edition ：  Pages: 460 ，Year of Publication: 2001 ，ISBN:0-521-77752-6 , Cambridge University Press  New York, NY, USA （本人没找到）