Supernova explosion observed in galaxy NGC 3285B

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Published on July 26, 2025 11:00:34 PM ● Video Link: https://www.youtube.com/watch?v=VYTR_rFYisQ

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The galaxy NGC 3285B is a barred spiral galaxy located about 137 million light-years from Earth in the constellation Hydra, also known as the Water Serpent.

Here are some fascinating highlights about it:
🌀 Main characteristics
Type: Barred spiral galaxy (classification SB(rs)b)
Estimated size: about 100,000 light-years in diameter
Apparent brightness: magnitude 13.86
Location: part of the Hydra I galaxy cluster, one of the largest in the nearby universe

💥 Supernova SN 2023xqm
In 2023, NGC 3285B experienced a Type Ia supernova, named SN 2023xqm. This type of explosion occurs when a white dwarf collapses, releasing an immense amount of energy—up to 5 billion times brighter than the Sun. This supernova was recorded by the Hubble Space Telescope and appears as a bluish dot on the left edge of the galaxy.

🔭 Scientific Importance
Type Ia supernovae are used as cosmic "standard candles," helping astronomers precisely measure distances in the universe. The observation of SN 2023xqm is part of a program that seeks to study 100 supernovae to refine these measurements.

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