Planet's position on ecliptic and equatorial planes Calculator
Calculates the ecliptic longitude and latitude, right ascension, celestial declination, and distance of the planets from Earth. | |||
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| The accuracy of the planet's position is ±6" in 1970- 2030. |
Planet's position on ecliptic and equatorial planes
| [1-10] /25 | Disp-Num |   |
- Purpose of use
- To ask a astrological question
- Comment/Request
- Can anyone on your site PLEASE tell me if jupiter will be cazimied by the sun, on: 12/27/2019, in both latitude and longitude? Thanks for your time!
[1] 2019/12/26 15:55 40 years old level / Others / - /
- Purpose of use
- Building a graphical guide to NASA Horizons tool
- Comment/Request
- Very useful table; a graphical representation of real time would really help, as there are many sites around which provide a graphical representation of solar system, but each one place "0°" in a different direction on the screen...
Some pages I found:
https://mgvez.github.io/jsorrery/ - Equinox on the left
https://theskylive.com/3dsolarsystem?obj=&h=09&m=07&date=2019-12-02 - Equinox on the left... or where you want
https://space.jpl.nasa.gov/cgi-bin/wspace?tbody=1000&vbody=1001&month=12&day=2&year=2019&hour=00&minute=00&fovmul=1&rfov=5&bfov=30&porbs=1&showac=1 - Equinox below
I would also specify in your image that the body at the center is the Earth.
I prepared an animation which helps understanding how equinox direction is determined: https://i.imgur.com/mo29BKT.gif
Here it is also a local calculator (but without longitudes, only R.A.): https://github.com/cosinekitty/astronomy/
By the way, it could be useful to add to the page an RA/longitude converter for generic values not in the table.
And finally a link to the dozens of formulas behind these calculations:
http://astro.if.ufrgs.br/trigesf/position.html
[2] 2019/12/02 10:38 40 years old level / An engineer / Very /
- Purpose of use
- To Find The Location Of Planets
- Comment/Request
- Please Include The Celestial Longitude of
Luminaries , The Sun and The Moon .
[3] 2019/11/29 16:01 20 years old level / High-school/ University/ Grad student / Very /
- Purpose of use
- simulation of the starry night
- Comment/Request
- I need to simulate stary night for simulation of a star sensor. For this purpose, I utilize HIPPARCOS catalog for stars, but in order to complete my simulation, I need the position of the sun, moon and the planets of the solar system in right ascension coordinate system (right acension and declination). Could you help me on this subject?
Best regards
[4] 2018/12/02 15:21 40 years old level / A teacher / A researcher / Useful /
- Purpose of use
- Astrology
- Bug report
- I think the plane in graphic labeled "equinoctial" should be named "equatorial" ?
- from Keisan
- Thank you for your advice.
We have revised it to "celestial equator".
[5] 2018/10/14 17:41 30 years old level / A teacher / A researcher / Very /
- Purpose of use
- PROJECT
[6] 2018/07/11 15:06 20 years old level / High-school/ University/ Grad student / Very /
- Purpose of use
- Corresponding year 2016 with astronomical time by pinpointing quarters and cross-quarters.
- Comment/Request
- I love the simplicity and it would really be a useful tool for me, but I needed Earth's longitude. It would also really help out if the reverse search could be done, entering the coordinate and getting the date as an output, since what I was searching for is the exact day and time Earth's longitude reached 135°.
[7] 2016/07/03 11:49 20 years old level / High-school/ University/ Grad student / A little /
- Purpose of use
- Setting-up starting positions on a Ptolemaic orrery
[8] 2016/06/24 18:47 60 years old level or over / A retired people / Very /
- Purpose of use
- Data collection of planets
[9] 2015/06/20 17:01 40 years old level / A teacher / A researcher / Useful /
- Purpose of use
- As a retired navigator of ships on the high the seas (long before GPS) I have had a genereal interest in astronomy during my whole professional life. The interest is still there!
[10] 2015/04/26 17:40 60 years old level or over / A retired people / Very /
Thank you for your questionnaire.
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