zhanggaoxing / astroalgo

AstroAlgo is an astronomical algorithms library, written in .NET Core.

AstroAlgo

AstroAlgo is an astronomical algorithms library, written in .NET Core. It is based on the planetary theory VSOP87. It can be used to calculate astronomical data, like:

• Julian day and calendar day converter.
• Sidereal time and Zone time converter.
• Coordinate system basic tools, include nutation; coordinate converter; and some angle calculator.
• Angle to HoursMinutesSeconds or to DegreeMinutesSeconds.
• Eight planets' rising, culmination and setting time; equator and ecliptic coordinate; elevation angle and azimuth; and distances.
• Solar terms; equinox; and solstice time.
• ...

How to Install

• NuGet Package Manager

  PM> Install-Package AstroAlgo
  

Getting Started

• For more information, please see documentations.
• Run the samples with Docker.

  cd AstroAlgo
  docker build -t SAMPLE_NAME -f samples/SAMPLE_NAME/Dockerfile .
  docker run --rm -it -p 8000:80 SAMPLE_NAME
  

References

• Astronomical Algorithms, First Edition by Jean Meeus
• Full-precision VSOP87 theory data - http://www.neoprogrammics.com/vsop87/

astroalgo's Issues

TimeZoneInfo.ConvertTime() errors

I'm doing as in "Planets Data" of you Readme:
But I need results for a specific date and time.
So I Created this.

DateTime UTC = new DateTime(MyDateTime.Value.Year, MyDateTime.Value.Month, MyDateTime.Value.Day, MyDateTime.Value.Hour, MyDateTime.Value.Minute, MyDateTime.Value.Second, DateTimeKind.Utc);
TimeZoneInfo zoneUTC = TimeZoneInfo.FindSystemTimeZoneById("Greenwich Standard Time");

and when I insert to your:
Moon object = new Moon(Lat, Long, TimeZoneInfo.ConvertTime(UTC, zoneUTC);
I get error: "Cannot convert from "System.DateTime" to "System.TimeZoneInfo"

I used many different setups (e.g. using basic "DateTime.Now") and this happens every time, when something calls to "TimeZoneInfo".

I use vs2019, and I'm working on NET Core 3.1.

Maybe something needs to be updated. Or something is wrong in the callback three for ConvertTime.