Infographic of the Day: How Galaxies are Classified by Typeastronomer edwin hubble
Hubble studied galaxies and classified them into various types of elliptical and spiral galaxies. The spiral galaxies were characterized by disk shapes with spiral arms. It stood to reason that because the Milky Way was disk-shaped and spiral galaxies were disk-shaped, the Milky Way was probably...
Astronomers haveestimatedthe number of stars in the Milky Way galaxy as one hundred billion (this is a low estimate by the way). The Milky Way is an average galaxy. Astronomers estimate that there are one hundred billion galaxies in the known universe (another low estimate). The math to fi...
2, 1988 on a classified mission for the U.S. Department of Defense. Image courtesy NASA Because of zero gravity (or microgravity, to be more precise), working in space is quite different from working on Earth. Astronauts must get used to being weightless, which causes bone and muscle ...
Disordered structures such as liquids and glasses, grains and foams, galaxies, etc. are often represented as polyhedral tilings. Characterizing the associated polyhedral tiling is a promising strategy to understand the disordered structure. However, since a variety of polyhedra are arranged in complex ...
Pinpoint stars and constellations wherever you are in the world. This book is fun and informative for kids older children. 2. Look Up with Me by Jennifer Berne Look Up with Me: Neil deGrasse Tyson: A Life Among the Stars, Jennifer Blume. Follow young Neil’s journey as he discovers ...
Statistics are drawn from populations, but a “population” doesn’t necessarily mean a physical count of bodies. It can be a collection of just about anything you can count, from galaxies in the sky to a count of trials in an experiment. Thus a statistic can be any quantity calculated fr...
For smaller telescopes (100mm and under), most deep-sky objects such as galaxies and nebulae will be dim and difficult to find. However, there are a few practical choices that I suggest you try in this range. The Andromeda Galaxy
You stand a small but non-zero chance of discovering a supernova. Image lots and lots of galaxies, measure them as soon as possible, and hope to beat the professional searchers to the punch. A few per annum are (independently) discovered by amateurs. ...
When you are ready to take your passion further, I’ll explain how to use a camera and telescope to take deep-sky images of galaxies and nebulae. This includes sharing my knowledge of camera control software,autoguiding, image processing, and much more. As you learn about new hardware optio...