Observation by Nick James: 29P coma expansion

Uploaded by

Nick James

Observer

Nick James

Observed

2021 Oct 04 - 00:00

Uploaded

2021 Oct 04 - 18:56

Objects

29P Schwassmann-Wachmann

Equipment

ASI6200MM + Celestron HD11

Exposure

20x60s

Location

Chelmsford, UK

Target name

29P

Title

29P coma expansion

About this image

Four images of 29P measured using comphot showing the expansion of the coma at around 2.5 arcsec radius per day which corresponds to 10,000 km/day or 115 m/s. The total magnitude has risen slowly from 11.4 to 11.0. As the coma expands the surface brightness falls. It will be interesting to see how long we can follow this for.

Files associated with this observation

29pcoma_baa.jpg (1.5 MB)

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Eric Watkins, David Strange, Ron Arbour, Grant Privett, Peter Carson

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