[BAA Comets] Two outbursts of Comet 29P/S-W1 in quick succession

[denis buczynski]

Hi Richard,Very interesting and well done to the observers who have picked up this latest outburst. Now that there is more continous monitoring, do you think that outbursts are more numerous and happen more often that was previously thought? Could it be that this comet is in a more or less permanent state of outburst or enhanced activity.Comets, fascinating objects eh?Denis Buczynski


      From: Richard Miles <rmiles.btee at btinternet.com>
 To: BAA Comets discussion list <comets-disc at lists.britastro.org> 
Cc: Observadores_cometas at yahoogroups.com; comets-ml at yahoogroups.com
 Sent: Wednesday, 28 June 2017, 18:11
 Subject: [BAA Comets] Two outbursts of Comet 29P/S-W1 in quick succession
   
Comet 29P has outburst again, just 5.5 days or so since its last outburst. 
First detected by Jean-Francois Soulier (A. Maury, J.-B. de Vanssay) from 
SpaceObs (W96), Chile:

0029P C2017 06 27.45029 21 40 09.67 -13 19 24.1 16.27N F65
0029P C2017 06 28.19032 21 40 00.14 -13 19 30.1 15.21N W96

Date of outburst: 2017 06 27.82 +/-0.30

European observers may have caught the outburst a little earlier than 
Jean-Francois on the night of June 27/28.

There have now been 5 outbursts during the present apparition. 
Interestingly, this one has taken place 116 days since the first outburst of 
this observing season. That equates to exactly 2.00 solar days on the 
nucleus according to my calculations. It also appears that the present event 
may have been triggered by that of June 22.32 +/-0.18.

We shall now have to see if the outburst coma develops in a similar way to 
that of the first event (March 04).

Richard Miles
BAA

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