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Observation by Nick James: 29P/Schwassmann-Wachmann outburst

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Nick James

Observer

Nick James

Observed

2020 Nov 22 - 17:26

Uploaded

2020 Nov 22 - 18:16

Objects

29P Schwassmann-Wachmann

Equipment
  • Celestron HD11 + FLI6303
Exposure

10x60s

Location

Chelmsford, UK

Target name

29P/Schwassmann-Wachmann

Title

29P/Schwassmann-Wachmann outburst

About this image

Here is an image of 29P almost exactly 3 days after its big outburst. The expanding coma has reached a diameter of around 24 arcsec. The comet is currently 4.90 au away so 1 arcsec is around 3,500km at the comet. This implies an expansion velocity of 160 m/s which seems rather a lot.

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Comments
Nick James
Nick James, 2020 Nov 22 - 21:43 UTC

A deeper image taken a little later shows more coma so the expansion velocity now looks to be more like 210 m/s.