Alcyone Ephemeris (Astronomy)

[dszady]

<quote>
Alcyone Ephemeris is an accurate and fast astronomical ephemeris
calculator covering the period 3000 BC to AD 3500.It calculates
heliocentric, geocentric, and topocentric positions of the Sun (Earth),
Moon, and planets in ecliptical, equatorial, and horizontal coordinates,
with optional corrections for parallax and refraction; rectangular
coordinates, velocity, acceleration, apparent diameter, magnitude, phase,
lunar libration, orbital elements, differences for all of these, and more
(see L Alcyone Ephemeris is freeware and runs under Windows 98/ME/2000/XP.
</quote>
http://www.alcyone-ephemeris.info/

<dszady>
Looked at the documentation. Quite extensive.
</dszady>

 

[Tom Giarmo]

<quote>
Alcyone Ephemeris is an accurate and fast astronomical ephemeris
calculator covering the period 3000 BC to AD 3500.It calculates
heliocentric, geocentric, and topocentric positions of the Sun (Earth),
Moon, and planets in ecliptical, equatorial, and horizontal coordinates,
with optional corrections for parallax and refraction; rectangular
coordinates, velocity, acceleration, apparent diameter, magnitude, phase,
lunar libration, orbital elements, differences for all of these, and more
(see L Alcyone Ephemeris is freeware and runs under Windows 98/ME/2000/XP.
</quote>
http://www.alcyone-ephemeris.info/

<dszady>
Looked at the documentation. Quite extensive.
</dszady>

kewl what time sunset set tonite?

 

[Mel]

kewl what time sunset set tonite?

This program calculates sunrise, sunset and twilight times for locations
worldwide. Once you set your location, you can hover your mouse over the
sun icon in the taskbar to get some basic sunrise and sunset information
or you can click on the icon to get more detailed information. The
program uses formulas which are accurate year-round to within a few
minutes for all states except Alaska. Even in Alaska it is generally
accurate to within five minutes.

In addition to calculating sunrise and sunset times, the program
calculates three different twilight times: civil, nautical and
astronomical. Also calculated is how much daylight and total usable
light there will be for the current day.

http://www.sunrisesunset.com/download/sun.zip