SOFA (astronomy)
The SOFA (Standards of Fundamental Astronomy) software libraries are a collection of subroutines that implement official International Astronomical Union algorithms for astronomical computations.
| Stable release | 2018-01-30
/ 2018-01-30 |
|---|---|
| Written in | C and Fortran |
| Operating system | Cross-platform |
| Type | Numerical library |
| License | SOFA Software License |
| Website | http://www.iausofa.org/ |
As of February 2009 they are available in both Fortran and C source code format.
Capabilities
The subroutines in the libraries cover the following areas:
- Calendars
- Time scales
- Earth's rotation and sidereal time
- Ephemerides (limited precision)
- Precession, nutation, polar motion
- Proper motion
- Star catalog conversions
- Astrometric transformations
- Galactic Coordinates
Licensing
As of the February 2009 release, SOFA licensing changed to allow use for any purpose, provided certain requirements are met.[1] Previously, commercial usage was specifically excluded and required written agreement of the SOFA board.[2]
gollark: The kernel versions don't line up with Android OS versions.
gollark: Allegedly, performance.
gollark: Each SoC has some unique fun set of peripherals. The manufacturers do not write drivers for these and PR them back into the upstream Linux kernel, because of course. They take some random old kernel version, make their changes in there, and then shove the ancient tweaked version onto phones.
gollark: The real picture is more complex, horrible and terrible.
gollark: They did not.
References
- SOFA Software License for Issue 2009-02-01, International Astronomical Union, 2008-09-30, retrieved 2009-09-09.
- SOFA Software License for Issue 2008-03-01, International Astronomical Union, 2007-05-21, retrieved 2009-09-09.
External links
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