Celestial hemisphere:  Southern  ·  Constellation: Puppis (Pup)
The Puppis A supernova remnant in H alpha light, Lawrence E. Hazel
The Puppis A supernova remnant in H alpha light
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The Puppis A supernova remnant in H alpha light

The Puppis A supernova remnant in H alpha light, Lawrence E. Hazel
The Puppis A supernova remnant in H alpha light
Powered byPixInsight

The Puppis A supernova remnant in H alpha light

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Description

Puppis A is a supernova remnant (SNR) about 100 light years in diameter and roughly 6500–7000 light years distant Its apparent angular diameter is about 1 degree. The light of the supernova explosion reached Earth approximately 3700 years ago. Although it overlaps the Vela Supernova Remnant, it is four times more distant.

A hypervelocity neutron star known as the Cosmic Cannonball has been found in this SNR. Other nearby objects (annotated) are probably sections of the SNR also. The structure is very filamentary,

typical of an SNR.

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