APOD: 2025 June 9 B Between Scylla and Charybdis: A Double Cosmic Discovery
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Credit & Copyright: M. Drechsler, Y. Sainty, A. Soto, N. Martino,
L. Leroux-Gere,
S. Khallouqui, & A. Kaeouach;
Text:
Ogetay Kayali
(Michigan Tech U.)
Explanation:
Can you identify this celestial object?
Likely not B because this is a
discovery image.
Massive stars forge heavy elements in their cores and,
after a few million years, end their lives in powerful
supernova explosions.
These
remnants cool relatively quickly and fade,
making them difficult to detect.
To uncover such faint, previously unknown supernova remnants,
a dedicated group of amateur astrophotographers searched through
sky surveys
for possible supernova remnant candidates.
The result: the first-ever image of supernova remnant G115.5+9.1 B
named Scylla by its discoverersBglowing faintly
in the constellation of the mythological King of Aethiopia:
Cepheus.
Emission from
hydrogen atoms in the remnant is shown in red,
and faint
emission from oxygen is shown in hues of blue.
Surprisingly, another discovery lurked to
the upper right: a faint, previously unknown
planetary nebula candidate.
In keeping with mythological tradition,
it was named Charybdis (Sai 2) B a nod to the ancient Greek expression
"caught between Scylla and Charybdis" from
HomerBs Odyssey.
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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.
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Publikacii s klyuchevymi slovami:
supernova remnant - planetary nebula - ostatok Sverhnovoi - Planetarnaya tumannost'
Publikacii so slovami: supernova remnant - planetary nebula - ostatok Sverhnovoi - Planetarnaya tumannost' | |
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