You can also use the contents list to find things. Each page in this site has a link back to this root page.
This site contains formulas, algorithms and some code for calculating the coordinates and the rise, transit and set times of the Sun, Moon and the planets. You will also find some information on plotting star charts, horizon charts and planispheres; all based on the polar and equatorial stereographic projection.
Warning: The methods in this Web site are not suitable for celestial navigation, occultation prediction, eclipse prediction or similar circumstances where high accuracy is needed. Thanks to people who have pointed out errors - some are bound to remain so check results against known sources before trusting the methods here.
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Latest Addition | Spreadsheet to calculate the time of Winter solstice - added 15th Dec 2001
Coordinates | Alt Az from Ra and
DEC | Precession | Sidereal time
|
Charts | Plotting a
planisphere | Plotting an
horizon sky chart | Plotting a star
chart
Planets | Finder tables |
charts | Circular
orbits | Elliptical
orbits | QBASIC
elliptical | Kepler's
equation
Sun | Position to 0.01
deg | Rise
and set |
Moon | 0.3 deg | 4 arcmin | 10 arcsec | Rise and set
| Libration |
Javascript
| C
Other satellites | Galilean |
Saturn rings
Tools | VBA | Euler |
About these pages | Who for | How made | Author
Feedback | e-mail: kburnett@btinternet.com |
Other Web sites (I found these useful - you might too) | Astronomical maths link list | Celestial navigation manual | Notes on spherical astronomy | Sky View Cafe | Sky Calc C code (John Thorstensen) | UNSO Data Services | Sun and Moon rise | ephemeris generator | Galilean moon events | ICE | Meridian | Mooncalc | Clementine Skimmer | The Electric Astrolabe | IntelliCAD | WinTopo | SoftCaD.3D Lite | Bill Arnett's Planetarium Software page | Dan's Astronomy Software | Software and code | General | Astronomy notes | Paul Schlyter's calculation site | Simple planisphere | Online 'astrolabe' templates | Monthly Sky Maps | Constellation guides | Tmoon Delphi component with moon position code | Celestial navigation javascripts by Henning Umland | Monthly DT measurements and predictions |
Spreadsheet to calculate the time of Winter solstice - added 15th Dec 2001
Coordinates | Alt Az from Ra and
DEC | Precession | Sidereal time
|
Charts | Plotting a
planisphere | Plotting an
horizon sky chart | Plotting a star
chart
Planets | Finder tables |
charts | Circular
orbits | **(EXCEL) Elliptical
orbits | QBASIC
elliptical | Kepler's
equation
Sun | Position to 0.01
deg | Rise
and set |
Moon | 0.3 deg | 4 arcmin | 10 arcsec | Rise and set
| Libration |
Javascript
| C
Other satellites | Galilean |
Saturn rings
Tools | VBA | Euler |
About these pages | Who for | How made | Author
Feedback | e-mail: kburnett@btinternet.com |
Other Web sites (I found these useful - you might too) | Astronomical maths link list | Celestial navigation manual | Notes on spherical astronomy | Sky View Cafe | Sky Calc C code (John Thorstensen) | UNSO Data Services | Sun and Moon rise | ephemeris generator | Galilean moon events | ICE | Meridian | Mooncalc | Clementine Skimmer | The Electric Astrolabe | IntelliCAD | WinTopo | SoftCaD.3D Lite | Bill Arnett's Planetarium Software page | Dan's Astronomy Software | Software and code | General | Astronomy notes | Paul Schlyter's calculation site | Simple planisphere | Online 'astrolabe' templates | Monthly Sky Maps | Constellation guides | Tmoon Delphi component with moon position code | *Celestial navigation javascripts by Henning Umland | Monthly DT measurements and predictions |