solar system
- C# Class for Calculating Sunrise and Sunset Times
- Sunrise/Sunset Calculations
- Sidreal Time Calculator
- World Time
- The Equation of Time
- A More Approximate Position of the Planets using JPL Ephemerides (Spirographs!!)
- How to calculate sidereal time
- 0:12 / 13:03 Celestial Coordinates
- Astronomical Coordinates
- Right Ascension and Declination, explained. (RA and DEC celestial Coordinates in Astronomy)
- Right Ascension and Declination Explained!
- Astro Tutorial #1.4 (old version): Coordinate Systems of the night sky - ALT/AZ vs RA/DEC
- Terrestrial/Celestial Spheres Coordinate Systems Tutorial
- Equation of Time
- Introductory Astronomy: Path of the Sun in the Daytime Sky
- Introductory Astronomy: Positions on the Celestial Sphere
- 0:04 / 5:49 Solar Geometry- How to read a sun-path diagram
- 0:35 / 18:40 Sun Path Charts
- The Earth's Sun Angle
- ASTR 503 - Class 1 - Video 1 - Celestial sphere: Definitions and Equatorial Coordinates
- ASTR 503 - Class 1 - Video 2 - Celestial sphere: Horizontal Coordinates
- ASTR 503 - Class 1 - Video 3 - Celestial Sphere: Ecliptic Coordinates
- ASTR 503 - Class 1 - Video 4 - Celestial Sphere: Hour Coordinates and Galactic coordinates
- ASTR 305 - Class 2 - Video 3 : Motions in the sky
- SPHERICAL TRIGONOMETRY:INTRODUCTION
- Celestial Sphere - altitude/azimuth
- Azimuths
A class for calculating sunrise and sunset times, implemented as a thread-safe Singleton
Code to help calculate sunrise and sunset times
A sidereal time calculator for Windows Phone
Displays current time in various timezones. Also demonstrates some Win32 API programming tricks.
Or why isn’t the earliest sunset on the year’s shortest day?
Video
Here I use some software I created on Github to plot the orbits of the planets and make some nice videos to watch and enjoy. I hope you enjoy this as well.
32,867 views Mar 1, 2012 This animation explains how sidereal time is calculated. You can find out more about how sidereal time is used in astronomy and WJ Macdonnell’s telescope at the National Museum of Australia
Celestial Coordinates
Describes the various coordinate systems used by astronomers, with a focus on the celestial coordinate system used in astronomical catalogues (also called equatorial coordinates) and how these are transformed to an azimuth and altitude (also know as an elevation).
How to use setting circles on a budget telescope?
What is RA and DEC on a telescope?
How to use Right Ascension and Declination?
Understanding how to use right ascension (RA) and declination (DEC) setting circles on the equatorial mount telescope. This video tries to simplify this confusing part for most amateur astronomers.
Universal Equatorial Coordinates take the origin of Vernal Equinox which gives us a constant coordinate system that doesn't change as the earth rotates, but since the Vernal equinox itself is a position on the celestial sphere. So it rotates with the sky. The two coordinates of the Universal system are
Today we discuss following items: a) the nomenclature of important points and plains b) coordinate systems of the night sky c) finding stars with their coordinates in both systems
Working on it... This video explains the coordinate systems used in celestial navigation, with an overview of the terrestrial and celestial spheres. This video is part of a series that teaches celestial navigation using techniques that have been used for centuries. In this course, you will learn some basics needed to find your location using a sextant and elementary math. This course is free and available to everyone, and should take less than two hours to complete.
The equation of time describes how the difference between the "natural time" kept by a sundial changes over the year, due to the changing length of the solar day.
Video lecture on how the Sun's path is different throughout the year. This video refers to the lecture tutorial "Path of the Sun" from "Lecture Tutorials for Introductory Astronomy" by Prather, et al.
Introductory Astronomy lecture on the celestial sphere and how to start thinking of horizon diagrams. Refers to tutorial 1 ("Position") from "Lecture Tutorials for Introductory Astronomy".
An introduction into Solar Geometry and basics of sun-path diagram
This lecture introduces sun path charts and how to use them to determine the general position of the sun at a given date and time. Along the way we'll discuss the difference between solar time and standard time. Finally, we'll briefly mention the use of sun path charts in shading analysis for a PV array.
@keegancan 2 years ago Great video, and great heat lamp comparison. I actually recreated an image in my mind of the heat lamps by having the heat lamps tilting at an angle and noticing that the foods would have varying amounts of heat.
SPHERICAL TRIGONOMETRY : = INTRODUCTION = PLANE TRIGONOMETRY = GREAT CIRCLE = SMALL CIRCLE = SPHERICAL TRIANGLE = SYMMETRICAL SPHERICAL TRIANGLES .
