Apparent: 3° Actual: c. 240 light years (highly approximate)
Optimum Visibility
May / June
The Lupus Loop is not visible in optical wavelengths of light, and indeed no survey source is available here that shows the structure of the supernova remnant. This image instead shows the Loop's location within Lupus, and its approximate dimensions in the sky, extending out over a region some three degrees in angular diameter. Imagery provided by Aladin sky atlas
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