This lesson shows how to identify a target star in a specific image using the WCS coordinates provided by either Astrometry.net or SAOImageDS9.
The main sequence is defined by the HR diagram movement of a star fusing hydrogen into helium within its core, and understanding the relationship between the luminosity, temperature, radius and mass of stars on the main sequence allows us to derive useful information from a star's location on it.
AstroImageJ (AIJ) is the industry standard for measuring exoplanet transits as well as accurately measuring double stars, and has quickly become a core component of the astronomical sciences. This video is a guide and reference for anyone using AIJ for double stars measurements.
This tutorial covers how to identify your target stars and the cardinal points, so you can place North and East in your images using MiraPro.
Kepler's laws of planetary motion are: the orbits of the planets are ellipses with the sun at one focus, a line from a planet to the sun sweeps over equal areas in equal intervals of time, and a planet’s orbital period (P) squared is proportional to its average distance from the sun (a) cubed