Astronomical Almanac

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47 reviews
Content rating
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About this app

The Astronomical Almanac application calculates the exact position of objects in the solar system, their sunrise and sunset for a given time and place. The time of the onset of the lunar phases and lunar days is also calculated.
To improve the accuracy of determining the location of the observer, geographical maps are used.
Calculations are made in the date range from 3000 BC. until 3000 A.D.
The program uses the Steve Moshier algorithms.
Designed for astronomical observations.
The following parameters are calculated for celestial objects:
 - UT, TDT, Julian Day
 - Sideral time, Delta T
 - Longitude
 - Latitude
 - Radius vector
 - Geocentric distance
 - Elongation from the Sun
 Visible geocentric:
 - Longitude
 - Zodiac
 - Right ascension
 - declination
 - constellation
 - J2000, Right Climb
 - J2000 Declination
 - B1950, right ascension
 - B1950 Declination
 - height
 - Azimuth
 - Right ascension
 - declination
 - Equatorial diameter
 - Visible value
 - phase
 - time of light
 - nutation
 - Aberration
 - Parallax
 - sunrise
 - Meridian
 - sunset
 - Visible time
Updated on
Sep 26, 2022

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47 reviews
Ian smith
January 17, 2022
Great app. Perhaps could show the local time, zone and geo coordinates on the 'shared' HTML page output?
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Brian Kelly
October 22, 2020
Incredibly accurate and useful app. Now supports Daylight Saving Time.
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Serge Gerard
April 17, 2022
Fulfills all my needs except for having an arrow to move forward or backward one day at a time .
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