PHP Science Labs
Some Basic Astronomy
and
Science-Related Tools
by Jay Tanner
- TOP / REFRESH -
Some Basic Astronomy Tools
Obliquity of the Ecliptic
The J. Laskar Obliquity Paper
Nutation Computations
Sidereal Time Calculator
Solstices and Equinoxes Calculator
Earth Perihelion/Aphelion Calculator
Solar System Events Calculator
DE405 Ephemerides of the Sun, Moon, Planets, Pluto and 15 Major Asteroids From the
USNO AE98 Asteroid Ephemerides
LUNAR BASE - Moon-Related Tools
YouTube - Mars vs Earth Simulation
The VSOP87 Theory
About the VSOP87 Theory
VSOP87 Equations Summary Part 1
VSOP87 Equations Summary Part 2
VSOP87 Series Terms Summaries
VSOP87 Coordinates Test Values
VSOP87 Planetary Distance Tables
VSOP87C Heliocentric PHP Modules
VSOP87 SOURCE CODE GENERATOR
VSOP87 Theory Source Paper
VSOP87 Theory Source Paper - PDF Version
LUNEX For POV-Ray
A Photo-Realistic Lunar Ray-Tracing
Tool With Texture Maps
LUNEX For POV-RAY - Lunar Ray-Tracing Tool
Planetary Perigee/Apogee Calculators
Based On the JPL Horizons API
Mercury Perigee/Apogee Calculator
Venus Perigee/Apogee Calculator
Earth Perihelion/Aphelion Calculator
Moon Perigee/Apogee Calculator
Mars Perigee/Apogee Calculator
Jupiter Perigee/Apogee Calculator
Saturn Perigee/Apogee Calculator
Uranus Perigee/Apogee Calculator
Neptune Perigee/Apogee Calculator
Pluto Perigee/Apogee Calculator
Stars
IAU Constellation Maps
Distance Between Two Stars or Planets
Stellar Magnitude of the Sun
Stellar Magnitude System
Stellar Magnitude vs Distance Calculator
Combined Stellar Magnitude Calculator
Calendrical Date/Time Tools
Julian Dates and JD Numbers For Any Month
Julian Dates and JD Numbers For Any Year
Inverse JD / Julian Date Calculator
Difference Between Dates and Times
USA Holidays and Special Dates Calendar
USA Dalight Saving Time Schedule
EU Summer Time Schedule
1582 - Julian/Gregorian Transition Calendar
1752 - USA Gregorian Transition Calendars
Some Basic Math and Science Tools
Standard and Hour Angle Equivalents
Sphere - Basic Properties Calculator
Sphere - Angular Diameter Calculator
Spere - Distance to Horizon Calculator
Sphere - Visible Surface Fraction Calculator
Spheroid Computations
Historical Oblate Spheroid
Parameters Calculator
PHP Ellipse Circumference Function
Variance and Standard Deviation Calculator
Combinations Calculator
Permutations Calculator
Temperature Scale Equivalents Calculator
Metric - Length Equivalents Calculator
Metric - Weight/Mass Equivalents Calculator
Earth - Geodetic Distance Calculator
Earth - GPS Ellipsoid XYZ Calculator
Randomizing Tools
Random Alphanumeric String Generator
Random Disits String Generator
Random Letters String Generator
Randomize List Items or Text Lines
Random Cards Dealer
Random Coins Flipper
Random Dice Roller
Random Names Generator
Random Latinoid Text Generator
Miscellaneous
HTML/CSS Color Names and RGB Codes
or
NO SPAM
I have a relative who can
turn you into a frog.
You have been warned!