|
This Java Script calculator computes the right ascension and declination of the sun and the planets. It transforms these coordinates into the horizon coordinates of altitude and azimuth at your location. To operate the calculator, enter the latitude and longitude of the observing site and the local date and time.
|
home.att.net/~srschmitt/script_planet_orbits.html
home.att.net/~srschmitt/script_planet_orbits.html
|
|
|
|
Right Ascension and Declination are a system of coordinates used in astronomy to determine the location of stars, planets and other objects in the night sky. They are similar to the system of longitude and latitude used to locate places on Earth.
|
www.go-astronomy.com/articles/coordinate-system.htm
|
|
|
The field of view gives the scale of the image—it will span the given number of degrees in declination and right ascension. The default of 45° gives a large-scale view on the scale of ... If this box is checked, the Moon and planets will be included in the map at their correct positions for the given time and date.
|
www.fourmilab.ch/yoursky/help/telcontrols.html
|
|
Instead, compact tables and simple computations of the Sun and planets on a small computer are described in this book. ... Mean Right Ascension and Declination adjusted to the equator and equinox of any specified epoch (e.g., Epoch 2000.0). Topocentric Apparent Right Ascension, Declination, Azimuth, Altitude,
|
www.willbell.com/math/MC11.htm
|
|
Just as latitude on Earth increases from 0 to 90 degrees as you move from equator to Pole, declination in the sky increases from 0 to 90 degrees as you look progressively north from the celestial equator, ... The corresponding coordinate in the sky is called right ascension. ... For objects within the solar system (comets, planets,
|
cse.ssl.berkeley.edu/segwayed/lessons/findplanets/coord...
cse.ssl.berkeley.edu/segwayed/lessons/findplanets/coordinates.html
|
|
The equatorial coordinates are the right ascension α (alpha) and the declination δ (delta). The declination determines from which parts of the planet the object can be visible, and the right ascension determines (together with other things) when ... Table 4: Planets: Approximations for Right Ascension and Declination;
|
www.astro.uu.nl/~strous/AA/en/reken/zonpositie.html
|
|
An example of these coordinates might be 13h 22' 37" -48° 55' 17'. The first set of coordinates is the Right Ascension (RA) and is measured in hours and portions of an hour (minutes and seconds). The second set of numbers is declination (DEC) and is measured in degrees and portions of a degree (arcminutes and arcseconds).
|
wind.cc.whecn.edu/~marquard/astronomy/coordinates.htm
|
|
It tells us that the Earth's spin axis is tilted with respect to the plane of the Earth's solar orbit by 23.5°. Observations show that the other planets, ... Formal measurements of viewing direction from the Earth are usually expressed in terms of right ascension and declination, the analogs to longitude and latitude on...
|
hyperphysics.phy-astr.gsu.edu/hbase/eclip.html
|
|
Declination and Right Ascension ... The great circle marking the intersection of the ecliptic plane on the celestial sphere is where the sun and planets appear to travel, and it's where the Sun and Moon converge during their eclipses (hence the name).
|
www2.jpl.nasa.gov/basics/bsf2-2.php
|
|
