Home / Trends / Hubble image shows nearby star and beautiful distant galaxy

Hubble image shows nearby star and beautiful distant galaxy



The Hubble Space Telescope took a new image of a distant galaxy and a nearby bright star in the same image, showing the contrast between the two. The galaxy in question is NGC 4907, 270 million light years away in the Coma Berenices constellation. The star that appears below the galaxy in the middle of this image is in our galaxy.

“A star shines under the galaxy that is actually in our own Milky Way,” the Hubble scientists explain. “This star appears much brighter than the millions of stars in NGC 4907 because it is 100,000 times closer and is only 2,500 light years away.”

The Barred Spiral Galaxy known as NGC 4907
Known as NGC 4907, the Barred Spiral Galaxy shows its best side from 270 million light years away for anyone who can see it from the Northern Hemisphere. This is a new image of the NASA / ESA Hubble Space Telescope from the front of the galaxy. It showed its beautiful spiral arms and loosely wrapped around its central bright star bar. ESA / Hubble & NASA, M. Gregg

NGC 4907 is a type of galaxy called a Barred Spiral Galaxy, which means that it has a rod-like structure of densely packed stars at its center. Barred spiral galaxies are the most common, with about two-thirds of the known galaxies of this type, including our own galaxy, the Milky Way.

Another feature of NGC 4907 is that it is classified as a low ionization nuclear emission line region or as a LINER galaxy. This type of galaxy has ionized gas at its center, although astronomers are still debating whether the source of the ionization is a supermassive black hole in the center or whether the energy comes from star-forming regions within the galaxy.

This galaxy is part of a large group of galaxies known collectively as a coma cluster. This cluster has a neighbor, the Leo cluster, and together the two are the primary clusters within the Coma Supercluster. The coma cluster is primarily intended to be filled with older galaxies, with only a few younger spiral galaxies scattered around the edge of the cluster. Some of the earliest observations made in the area indicate the presence of dark matter in the 1

930s.

Editor’s recommendations







Source link