Precession Calculation Online
Калькулятор пересчета экваториальных координат в десятичные градусыЕще астрономические калькуляторы For given geographical longitude and time zone show the current data and time, Universal data and time, current local star time. Possible to insert the summer time correction.
Show the current month calendar, any month and any year calendar is avaliable too. Script by: Rob Patrick (rpatrick@mit.edu).
Accept 10 different data formats (data&time, data with decimal day of month, data with decimal day of year, decimal year, some Julian dates), calculate from any formate to others, show day of week. Current data and time direct insertion function is exists. Correction for time zone is avaliable.
Calculate angular distance between two points at the sky by its equatorial coordinates. Accept coordinates in h/m/s/deg/arcmin/arcsec, degrees and radians, recalculates coordinates from any of this forms to others.
Simple program to transform equatorial coordinates from any start epoch to any final epoch. Accept coordinates in h/m/s/deg/arcmin/arcsec, degrees and radians, recalculates coordinates from any of this forms to others.
Similar to previous program, but also show the constellation, in which point (with calculated coordinates) is placed.
Similar to previous program, but also accept and calculate the galactic coordinates in deg/arcmin/arcsec, degrees and radians. Also recalculates coordinates from any of this forms to others.
Similar to previous program, but also accept and calculate for two epochs the ecliptic coordinates in degrees and radians. Also calculates the ecliptic/equator inclination angle for the both epochs.