Unraveling the Secrets of SNR G116.9+00.1 in Cassiopeia

SNR G116.9+00.1 also known as CTB 1 and AJG 110 is a celestial object located in the Cassiopeia constellation that has caught the attention of the scientific community. Its precise distance from Earth remains uncertain with estimates ranging between 8,800 and 11,000 light years. This intriguing astronomical phenomenon was first discovered during a radio survey carried out in 1960.

The Unique Characteristics of SNR G116.9+00.1

Upon examination SNR G116.9+00.1 stands out as a supernova remnant rich in oxygen. In terms of morphology it falls into the category of a remnant displaying a shell like appearance when observed using radio frequencies while appearing compact in X ray observations. The data derived from these observations suggest that the progenitor star had a mass ranging from 13 to 15 times that of our sun. Astronomers believe that this star experienced a supernova explosion around 10,000 years ago; however additional information could potentially place its age at around 16,500 years.

The Connection between PSR J0002+6216 and SNR G116.9+00.1

Further investigations have led scientists to theorize that the pulsar PSR J0002+6216 is closely associated with SNR G116.9+00.1 due, to pieces of evidence aligning their velocities and motion directions with each other.

At a velocity of 1,000 km/s it seems likely that the pulsar originated from a non uniform explosion.

The image accompanying this text showcases SNR G116.9+00.1 in an appealing way captured using a small amateur telescope. The composite optical representation combines broadband filters (RGB) with narrow band filters specifically designed to highlight the emission of ionized oxygen ([O III]) ionized hydrogen (Hα) and ionized sulfur ([S II]).

Image Credit; Daniel Nimmervoll @astrobim

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