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Credit & Copyright: Ben
Godson
(University of Warwick)
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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NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.
Based on Astronomy Picture
Of the Day
Publications with keywords: supernova
Publications with words: supernova
See also:
- APOD: 2025 August 8 B Dawn of the Crab
- APOD: 2023 October 11 B NGC 1097: Spiral Galaxy with Supernova
- APOD: 2023 July 9 B Doomed Star Eta Carinae
- APOD: 2023 May 22 B Supernova Discovered in Nearby Spiral Galaxy M101
- Supernova Cannon Expels Pulsar J0002
- SN Requiem: A Supernova Seen Three Times So Far
- NGC 7814: Little Sombrero with Supernova