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This is for the Assignment: Click topic for this week of a composition in one color.
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A view of Harry Bertoia's "Sculpture Group Symbolizing World's Communication in the Atomic Age" at Smithsonian American Art Museum.
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The spiral galaxy UGC 11860 seems to float serenely against a field of background galaxies in this image from the NASA/ESA Hubble Space Telescope. UGC 11860 lies around 184 million light-years away in the constellation Pegasus, and its untroubled appearance can be deceiving; this galaxy recently played host to an almost unimaginably energetic stellar explosion.
A supernova explosion — the catastrophically violent end of a massive star’s life — was detected in UGC 11860 in 2014 by a robotic telescope dedicated to scouring the skies for transient astronomical phenomena; astronomical objects which are only visible for a short period of time. Two different teams of astronomers used Hubble’s Wide Field Camera 3 to search through the aftermath and unpick the lingering remnants of this vast cosmic explosion.
One team explored UGC 11860 to understand more about the progenitor star systems that eventually meet their demise in supernovae. The unimaginably energetic environment during supernova explosions is predominantly responsible for forging the elements between silicon and nickel on the periodic table. This means that understanding the influence of progenitor star systems’ masses and compositions is vital to explaining how many of the chemical elements here on Earth originated.
The other group of astronomers used Hubble to follow up supernovae that were detected by robotic telescopes. These automated eyes on the sky function without the intervention of humans, and capture transient events in the night sky. Robotic telescopes allow astronomers to detect everything from unexpected asteroids to rare, unpredictable supernovae, and can identify intriguing objects that can then be investigated in more detail by powerful telescopes such as Hubble.
[Image Description: A spiral galaxy, a fuzzy oval tilted diagonally and partially towards the viewer. The centre glows in warm colours, and has two prominent spiral arms around it, with bright points of star formation. The galaxy is central in a field of small stars and galaxies on a dark background.]
Credits: ESA/Hubble & NASA, A. Filippenko, J. D. Lyman; CC BY 4.0
A super-widefield view of the nebulosity associated with the huge supernova remnant in the southern constellation of Vela, North is at the top in this frame which is a 2x2 mosaic where each pane of the mosaic was captured with a William Optics Redcat51 scope and a ZWO ASI2600MC camera. I built 2 versions of the mosaic, the first taken with just the built-in UV/IR filter and the second shot with an Optolong L-eXtreme filter. The final result is a blend of these two. All post-processing was carried out in PixInsight.
CTB 1 is a supernova remnant (SNR) in the constellation Cassiopeia and a source of optical, radio, and X-ray emissions. A recent study reports that a pulsar was born from the supernova that produced CTB 1 and ejected into the galaxy.
CTB 1 is approximately 9784 light years away and physically spans another 98 light years in diameter while it is dated to be approximately 10,000 years old.
Image captured over 5 nights; 2021-11-06, 07, 08, 10, & 11
20.5 hours total integration
Ha subs 18 * 1,800 sec = 9 hours
OIII subs 12 * 1,800 sec = 6 hours
SII subs 11 * 1,800 sec = 5 hours 30 min
Imaging Equipment:
SharpStar 140PH Triplet 910mm focal length
Mesu 200 MKII mount,
ZWOASI2600MM Pro camera
SHO 3.0nm filters
A galaxy 40 million light-years away just had a supernova this week (July 14, 2025). SN 2025rbs is a white dwarf that stole too much mass from a companion, went thermonuclear, and blew itself to bits, releasing enough energy to temporarily rival the brightness of an entire galaxy, 40 million years ago.
Esprit 120, QHY268M, Optolong HLRGB, 9hr 10m integration from Starfront Observatory, TX
www.christoph-schmich.de/farbenrausch-photography/
This photograph is copyrighted and may not be used anywhere, including blogs, without my express permission.
Vela SNR is a supernova remnant on the southern hemisphere, which was formed by a star explosion about 11,000. It is one of the largest and brightest supernova remnants in the sky, and covers an area that is four times larger than the full Moon. Vela SNR is about 800 light-years away from Earth and has a diameter of about 120 light-years.
Sigma SD15
overall view:
www.flickriver.com/photos/97875468@N07/popular-interesting/
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My mini version of the Supernova Quilt from the book Quilting Modern for Craft Buds Craft Book Month!
Es difícil explicar con palabras como fue la puesta de sol de hoy, mejor os dejo la foto.
Sin editar, tal cual salió de la cámara
“All the speed he took, all the turns he'd taken and the corners he'd cut in Night City, and still he'd see the matrix in his sleep, bright lattices of logic unfolding across that colorless void...”
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