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Posted on 07/31/2025 11:40:46 AM PDT by MtnClimber
Explanation: A long time ago in a galaxy 50 million light-years away, a star exploded. Light from that supernova was first detected by telescopes on planet Earth on July 14th though, and the extragalactic transient is now known to astronomers as supernova 2025rbs. Presently the brightest supernova in planet Earth's sky, 2025rbs is a Type Ia supernova, likely caused by the thermonuclear detonation of a white dwarf star that accreted material from a companion in a binary star system. Type Ia supernovae are used as standard candles to establish the distance scale of the universe. The host galaxy of 2025rbs is NGC 7331. Itself a bright spiral galaxy in the northern constellation Pegasus, NGC 7331 is often touted as an analog to our own Milky Way.
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Wow.
Nice capture!
Not sure which is the Supernova - is it the star right above the 2 in 2025, or is it the star at 2 O’clock from the galaxy center?
I think it is below and right of the s in rbs. Below and just left of the galaxy center.
The photo shows 2 lines pointing to the supernova.
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