Stellar Ephemeris Calculator

Stellar Ephemeris Calculator
Constellation
Star


Date and Time

YYYY   MM   DD  
Hr   Min   Sec  


Time Zone

TT Time    Universal Time



OUTPUT

Delta-T  


Sun Ephemeris

Sun RA  
Sun Dec  
Sun GHA  
Sun SD  


Star Ephemeris

LS Star Almanac No.  
Bayer Designation  
Right Ascension  
Declination  
Greenwich Hour Angle  

Notes :-

Choose either TT Time (UT-4) or Universal Time (UT)
Click on the Links to get the Official U.S. Time.

TT Time =  Universal Time - 4 Hours.
Reload the page to re-insert the current Date & TT Time.

+ve δ : The Sun is North of the Equator (Mar. 21st to Sep. 23rd).
-ve δ : The Sun is South of the Equator (Sep. 23rd to Mar. 21st).

Adapted from Code by Dr. Henning Umland
http://www.celnav.de/staralm.htm

J2000 Ephemeris Data from the Fifth Fundamental Catalogue FK5 (1988)
http://wwwadd.zah.uni-heidelberg.de/publikationen/vhd/vhd032/fulltext/gif.c001.htm

Additional Data from the SIMBAD Astronomical Database
http://simbad.u-strasbg.fr/simbad

JavaScript Code © 2016 H.A. Nandalal, BSc.,T.T.L.S.