Astronomy

Calculator name  open or close of image Summary
Solar elevation angle (for a day)
Solar elevation angle (for a day)
Solar elevation angle (for a day)
Calculates a table of changes in the solar elevation and azimuth angles for a day and draws the chart.
Solar elevation angle (for a year)
Solar elevation angle (for a year)
Solar elevation angle (for a year)
Calculates a table of changes in the solar elevation and azimuth angles for a year and draws the chart.
Solar culmination and equation of time
Solar culmination and equation of time
Solar culmination and equation of time
Calculates a table of changes in the solar culmination and equation of time for a year and draws the chart.
Sunrise and sunset times (location)
Sunrise and sunset times (location)
Sunrise and sunset times (location)
Calculates the solar azimuth and elevation angles, sunrise and sunset times, and culmination time.
Sunrise and sunset times (major cities)
Sunrise and sunset times (major cities)
Sunrise and sunset times (major cities)
Calculates the solar azimuth and elevation angles, sunrise and sunset times, and culmination time.
Moonrise and moonset times (location)
Moonrise and moonset times (location)
Moonrise and moonset times (location)
Calculates the lunar azimuth and elevation angles, moonrise and moonset times, culmination time, and moon's age.
Moonrise and moonset times (major cities)
Moonrise and moonset times (major cities)
Moonrise and moonset times (major cities)
Calculates the lunar azimuth and elevation angles, moonrise and moonset times, culmination time, and moon's age.
Distance of planets from Earth
Distance of planets from Earth
Distance of planets from Earth
Calculates the azimuth, elevation angle and distance of the planets from Earth.
Planet's position on ecliptic and equatorial planes
Planet's position on ecliptic and equatorial planes
Planet's position on ecliptic and equatorial planes
Calculates the ecliptic longitude and latitude, right ascension, celestial declination, and distance of the planets from Earth.
Rising and setting of the planets (location)
Rising and setting of the planets (location)
Rising and setting of the planets (location)
Calculates the rising and setting times, azimuth and elevation angles, and culmination time of the planets from the earth.
Rising and setting of the planets (major cities)
Rising and setting of the planets (major cities)
Rising and setting of the planets (major cities)
Calculates the rising and setting times, azimuth and elevation angles, and culmination time of the planets.
Tidal force
Tidal force
Tidal force
Calculate the gravitational and tidal forces of the moon and the sun, and their respective ratios of those at apogee to those at perigee.
Escape velocity
Escape velocity
Escape velocity
Calculates the escape velocities from the planet and from the solar system.
Orbit of a satellite
Orbit of a satellite
Orbit of a satellite
Calculates the orbital radius and period, and flight velocity from the orbital altitude.
Western calendar date from Julian Day
Western calendar date from Julian Day
Western calendar date from Julian Day
Calculates Western calendar date from Julian Day or Modified Julian Day.
Julian Day from Western calendar date
Julian Day from Western calendar date
Julian Day from Western calendar date
Calculates Julian Day and Modified Julian Day from Western calendar date.