Tour

LBN 576 (CTB1, SNR G116.3+00.1) Supernova Remnants

LBN 576 (CTB1, SNR G116.3+00.1)

LBN 576
LBN 576

A supernova remnant in Cassiopeia. It was first classified as planetary nebula. But recent measurement suggest it to be the shockwave of a supernova blast about 10000 years ago at a distance of 10000 light years. The bubble has now a diameter of approximately 100 light years.
This object is pretty faint and difficult. The image has been acquired over three nights, partly through high clouds.

Read more “LBN 576 (CTB1, SNR G116.3+00.1)”
Cygnus Loop (Veil Nebula) Supernova Remnants

Cygnus Loop (Veil Nebula)

Cygnus Loop, Veil Nebula
Cygnus Loop, Veil Nebula

This is a three panel mosaic of this wonderful supernova remnant in Cygnus, maybe the largest in the sky. The progenitor star, 20 times more massive than our sun, exploded some 10000 to 20000 years ago in a distance of about 2400 light years from earth. The shockwave of that explosion still travels with high speed into interstellar gas and makes it glowing brightly in red Halpha and blue OIII light.

Read more “Cygnus Loop (Veil Nebula)”
Sh 2-157 (Lobster Claw Nebula), NGC 7635 (Bubble Nebula), NGC 7538 (Northern Lagoon Nebula), NGC 7510 Emission Nebulae

Sh 2-157 (Lobster Claw Nebula), NGC 7635 (Bubble Nebula),…

Lobster Claw Nebula, Bubble Nebula, Northern Lagoon Nebula
Lobster Claw Nebula, Bubble Nebula, Northern Lagoon Nebula

Huge HII region in Cepheus and Cassiopeia. Massive stars illuminate surrounding gas clouds. Wolf-Rayet stars power the blueish central part of the Lobster Claw and a massive star blows up the bubble, which is nothing else but a shockwave generated by fast stellar winds. The open star cluster just on the top in the center has a funny form … like the tip of an arrow.

Read more “Sh 2-157 (Lobster Claw Nebula), NGC 7635 (Bubble Nebula), NGC 7538 (Northern Lagoon Nebula), NGC 7510”