A supernova has been caught by NASA/ESA Hubble Space Telescope in Nakshatra Gemini. The stellar explosion, seen as a bright blue dot, was found in the blurred outer disk of a galaxy that is about 600 million light-year away. The image, including many distant galaxies and foreground stars, was taken by Supernova after about two months, named SN 20222AAJN, discovered. This incident has not been a matter of detailed research since it was detected in November 2022.
Astronomers use supernova to measure distances
As ReportsSN 20222AAJN is classified as a type of IA Supernova, which occurs when the core of a dead star bursts. Type IA Supernova is considered important for measuring the distance in the universe because they share a consistent internal glow. From their known brightness to their known brightness from Earth, astronomers can determine how far they are. However, the intergactic dust presents a challenge, as it can change the color of these explosions, complicating the distance calculation.
Hubble’s role in Supernova Studies
The observation distance of SN 20222AAJN was part of a comprehensive effort to refine the measurement. According to reports, the Hubble is conducting a survey of 100 type IA Supernova using seven different wavelength bands, including ultraviolet to near-end. The image of SN 20222AAJN was created using four infrared wavelengths, allowing scientists to analyze how unclear the light of supernova is by cosmic dust. By comparing brightness variations in these wavelengths, researchers aim to improve ways to determine the distance of billions of light-year away.
