Celestial hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)  ·  Contains:  The star 9 Cas
LBN 576 / CTB-1 The Eyeball Nebula, Marten Amschler
LBN 576 / CTB-1 The Eyeball Nebula, Marten Amschler

LBN 576 / CTB-1 The Eyeball Nebula

LBN 576 / CTB-1 The Eyeball Nebula, Marten Amschler
LBN 576 / CTB-1 The Eyeball Nebula, Marten Amschler

LBN 576 / CTB-1 The Eyeball Nebula

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Description

For my first SNR image, this proved to be a challenging subject in terms of processing. It was the first time that i sorely used Photoshop to combine the colors. The resulting image style appeared more "intense" compared to my typical work, but it felt appropriate for portraying this particular object. The 12 hours OIII wasn't quite enough to get all the details and background nebulosity.... but the weather wouldn't listen to my reasoning. In the end F3.75 at 750mm gave a satisfying framing and a good amount of Ha-Details

Abell85_PS_starless_inverted.jpg

First discovered 1966 by Abell and mistakenly cataloged as planetary nebula Abell 85. Later listed in a survey of galactic radiation as CTB-1 and also published in Lynds catalogue as LBN 576. Officially it is known as 'Medulla Nebula' due to it's resemblance of a cross section through the human brain and spinal cord (medulla oblangata). But with all the possible names - popped balloon nebula - medulla nebula - testicle nebula - .... I just call it Eyeball Nebula, because why not

Description:A supernova remnant (SNR) is a fascinating astronomical phenomenon resulting from the explosive death of a massive star. It represents the remnants of a cataclysmic event, a supernova explosion, where a star undergoes a rapid and violent collapse followed by a powerful outward burst of energy. This explosion is one of the most energetic events in the universe, temporarily outshining entire galaxies and dispersing heavy elements into space.A supernova remnant typically has a complex and intricate structure, often resembling an expanding shell or bubble of glowing gas and dust. This shell is composed of the materials ejected during the supernova explosion, which can include elements like hydrogen, helium, oxygen, carbon, and heavier elements that were synthesized in the core of the star before its demise. As these materials are hurled out into space at incredibly high velocities, they create shockwaves that heat and ionize the surrounding interstellar medium, causing it to emit radiation across the electromagnetic spectrum.The appearance of a supernova remnant changes over time as it expands into space. In its early stages, it may appear compact and relatively small. As it ages, the remnant expands and becomes fainter, eventually merging with the surrounding interstellar medium. The age of a supernova remnant can be estimated by studying its size and the speed at which it is expanding.Supernova remnants are of immense importance to astrophysics. They provide insights into the life cycles of stars, the creation of elements, and the dynamics of interstellar space. The heavy elements forged in supernova explosions are crucial for the formation of planets, and even life itself, as they are dispersed into space and eventually incorporated into new stars and planetary systems.

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  • Final
    LBN 576 / CTB-1 The Eyeball Nebula, Marten Amschler
    Original
  • LBN 576 / CTB-1 The Eyeball Nebula, Marten Amschler
    B
  • LBN 576 / CTB-1 The Eyeball Nebula, Marten Amschler
    C

B

Title: starless

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C

Title: inverted

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LBN 576 / CTB-1 The Eyeball Nebula, Marten Amschler

In these public groups

Skywatcher PDS200