The National Astronomical Research Institute (NRSA) posted on Facebook revealing images from the Hubble Space Telescope that captured “NGC 3285B,” a spiral galaxy approximately 137 million light years from Earth in the constellation Hydra, which is the largest of the 88 constellations and is 100 degrees long in the sky. This is equivalent to 200 full moons in a row.
Dr. stated that NGC 3285B is one of the members of The Hydra I cluster is a region where hundreds to thousands of galaxies are gathered together and interact under the force of gravity. This galaxy cluster is one of the largest galaxy clusters in the local universe.
The cluster consists of two large elliptical galaxies at the center that bind the other member galaxies. Both galaxies are 50% larger than the Milky Way, with a central diameter of about 150,000 light-years.
The galaxy NGC 3285B is located at the edge of the galaxy cluster, quite far from the two large elliptical galaxies. and does not appear in this picture
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Observing NGC 3285B during 2023, Hubble detected a Type Ia (pronounced ONE-A) supernova, a violent explosion of a “white dwarf” that attracted material from a companion star. A huge release of energy occurred. and shines out 5 billion times brighter than the sun in a short period of time. In this image, the location of the supernova, named SN 2023xqm, appears as a blue dot on the left edge of the galaxy.
The observations of NGC 3285B were part of Hubble’s study of 100 Type Ia supernovae. The goal is to study the distance and structure of the dust and gas that result from supernovae. During the ultraviolet wave (ultraviolet), visible light (optical) and near infrared (near-infrared)
Both of these factors cause supernovae to appear redder than they really are. This study will help improve measurements of distances in the universe that use supernovae to compare distances.
Source: NARIT National Astronomical Research Institute
