Sequence of Images of WR 112 Since 2001 (IMAGE)

W. M. Keck Observatory

Sequence of Images of WR 112 Since 2001

Caption

Sequence of 7 mid-infrared (~10 micrometers) images of WR 112 taken between 2001 - 2019 by Gemini North, Gemini South, Keck Observatory, the Very Large Telescope (VLT), and Subaru Telescope. The length of the white line on each image corresponds to about 6800 astronomical units. "Spurs" are the structures formed in the past 20 years showing variations between observations. "Nested shells" are expanding structures formed previously. The X-like signature in the Subaru Telescope image is an artifact due to property of the instrument.

Credit

R. Lau et al./ISAS/JAXA

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