Astronomy Calculator is a series of calculators and web services that perform specific astronomical calculations to determine many values.
We have created a list of the calculators that are currently available on Astronomy Calculator.
For questions or comments, please sent an email to [email protected]
We have created a list of the calculators that are currently available on Astronomy Calculator.
For questions or comments, please sent an email to [email protected]
Calendar
- Date of Easter
- Leap Year
- Date to Day
- Calendar Date to Julian Date
- Julian Date to Calendar Date
- Day of Week from Julian Date
- Day of Week
Time
- Time to Decimal
- Decimal to Time
- Local Time to Universal Time
- Universal Time to Local Time
- Universal Time to Greenwich Sidereal Time
- Greenwich Sidereal Time to Universal Time
- Greenwich Sidereal Time to Local Sidereal Time
- Local Sidereal Time to Greenwich Sidereal Time
Coordinate Systems
- Angle Degrees to Decimal Degrees
- Decimal Degrees to Angle Degrees
- Right Ascension to Hour Angle
- Hour Angle to Right Ascension
- Equatorial to Horizon
- Horizon to Equatorial
- Mean Obliquity of the Ecliptic
- Ecliptic to Equatorial
- Equatorial to Ecliptic
- Equatorial to Galactic
- Galactic to Equatorial
Modification
- Angle between two celestial objects
- Rising and Setting
- Precession
- Nutation
- Aberration
- Refraction
- Parallax
- Heliographic
- Carrington Rotation Number
- Selenographic Moon
- Selenographic Sun
Sun
- Sun Longitude
- Sun Position
- Sun Distance
- Sun Angular Size
- Sunrise and Sunset
- Twilight Civil
- Twilight Nautical
- Twilight Astronomical
- Equation of Time
- Solar Elongation
- Solar Eclipse
Solar System
- Mercury Position
- Venus Position
- Mars Position
- Jupiter Position
- Saturn Position
- Uranus Position
- Neptune Position
- Mercury Visual
- Venus Visual
- Mars Visual
- Jupiter Visual
- Saturn Visual
- Uranus Visual
- Neptune Visual
- Comets
Moon
- Moon Position
- Moon Phase
- New Moon
- Full Moon
- Moon Bright Limb
- Moon Distance
- Moon Angular Diameter
- Moon Horizontal Parallax
- Moonrise and Moonset
- Lunar Eclipse