On the order of 100,000 galaxies make up the Local Supercluster, and about 51 galaxies are in the Local Group (see list of nearest galaxies for a complete list).

Dec 8, 2025 · Scientists sometimes categorize galaxies based on their shapes and physical features. Other classifications organize galaxies by the activity in their central regions – powered by a …

An A-to-Z list of 100 notable galaxies of the night sky. Dim, diffuse objects like galaxies require lots of telescope aperture and are ideal for viewing with a dobsonian telescope.

What do other galaxies look like? To the eye they are fuzzy patches in the sky. With long exposures on film, various features such as spiral structure and star clusters are visible. Though it is possible to …

Galaxy clusters are gravitationally bound groupings of galaxies, numbering from the hundreds to the tens of thousands. This is an alphabetically ordered list of selected galaxies and galaxy clusters.

This is a list of galaxies that are visible to the naked eye, for at the very least, keen-eyed observers in a very dark-sky environment that is high in altitude, during clear and stable weather.

Beyond the Milky Way, our galaxy, lie countless other galaxies— vast systems of stars, gas, dust, and dark matter that span the cosmos. Each galaxy is a universe unto itself, with unique structures, …

The distances between galaxies are large and are often measured in megaparsecs. A megaparsec is one million parsecs (or about 3.3 million light years). For instance, the distance between the Milky …

In addition, many galaxies clump together in groups or galaxy clusters. By studying both individual and populations of galaxies, extragalactic astronomers seek to understand their formation, history, and …

Nov 7, 2025 · Explore the main types of galaxies: spiral, elliptical, barred and irregular with stunning astrophotography and insights into how galaxies form, collide & evolve.