29P S-W1 

2017


       

               

       

       

 New Outburst (with W96) +1.6mag

       

       

       

New Small Outburst  : +/-0.6mag
       


       

             


COD A77
OBS J.-F. Soulier
MEA J.-F. Soulier
TEL 0.20-m f/4 Newtonian reflector + CCD
NET UCAC-4
0029P        KC2017 11 23.79671 21 13 33.14 -13 47 31.9          17.02N      A77
0029P        KC2017 11 23.79671 21 13 33.14 -13 47 31.9          17.1 N      A77
0029P        KC2017 11 23.81767 21 13 33.73 -13 47 28.3          16.82N      A77
0029P        KC2017 11 23.81767 21 13 33.73 -13 47 28.3          16.8 N      A77
----- end -----


               

       

       

       
       

COD A77
OBS J.-F. Soulier
MEA J.-F. Soulier
TEL 0.20-m f/4 Newtonian reflector + CCD
NET UCAC-4
0029P        KC2017 11 02.89166 21 06 31.50 -14 26 09.5          16.06N      A77
0029P        KC2017 11 02.89166 21 06 31.50 -14 26 09.5          16.1 N      A77
0029P        KC2017 11 02.90296 21 06 31.72 -14 26 09.2          16.7 N      A77
0029P        KC2017 11 02.90296 21 06 31.72 -14 26 09.2          16.70N      A77
0029P        KC2017 11 02.90973 21 06 31.88 -14 26 08.5          16.2 N      A77
0029P        KC2017 11 02.90973 21 06 31.88 -14 26 08.5          16.20N      A77
----- end -----

COD A77
OBS J.-F. Soulier
MEA J.-F. Soulier
TEL 0.20-m f/4 Newtonian reflector + CCD
NET UCAC-4
0029P        KC2017 11 01.73086 21 06 15.86 -14 27 42.0          16.47N      A77
0029P        KC2017 11 01.73086 21 06 15.86 -14 27 42.0          16.5 N      A77
----- end -----


      

     


     

     

       
       
       

       

       

       
       

       

       

         

New Small Outburst  : +0.6mag



   

    

   

     

     

New Small Outburst

     


New Outburst

   

New Outburst


 

  

  

COD A77
OBS J.-F. Soulier
MEA J.-F. Soulier
TEL 0.20-m f/4 Newtonian reflector + CCD
NET UCAC-4
0029P        KC2017 08 08.92445 21 24 09.88 -13 57 54.2          16.36N      A77
0029P        KC2017 08 08.96854 21 24 08.60 -13 57 59.0          15.83N      A77
0029P        KC2017 08 09.01256 21 24 07.28 -13 58 01.3          16.01N      A77
0029P        KC2017 08 09.05658 21 24 06.02 -13 58 04.9          15.94N      A77
0029P        KC2017 08 09.10056 21 24 04.68 -13 58 08.4          16.06N      A77
----- end -----


 

 

 

Outburst

 

Small outburst

 

    

    

 

New Small Outburst +0.4m2 

   

New Outburst :
the 29PREMOTE telescope records the brightness rise

For the very first time the onset and development of an outburst of
enigmatic comet 29P/Schwassmann-Wachmann has been captured thanks to
independent observations by Jean-François Soulier and Juan Jose Gonzalez
Diaz on 2017 July 02. Details can be found on the BAA webpage:

https://www.britastro.org/node/10684

That BOTH observers were carrying out a time-series of CCD images at the
SAME time is an amazing coincidence especially when it is realised that this
is only the SECOND such strong outburst so far during 2017 and that such an
event is more or less over and done within a time-window of about one hour!

29P was discovered 90 years ago and at last we have some hard data showing
the onset of an outburst event. The beginning of the outburst is very sudden
and, as such, it is clearly a singular event reminiscent of a cryovolcanic
eruption at the nucleus. Analysis of the form of the rising lightcurve
should provide some valuable insight into this possibility.

The actual event was also the third very significant outburst within less
than 10 days and it is likely that the all three are inter-related in some
way, e.g. the first event triggered the second, which triggered the third.
Since the July 2nd event, a fourth outburst has also taken place just 3.5
days later! See Figure 3 at the above URL to see an example of the
photometric lightcurve these past 45 days.

Extremely well done Jean-François and Juanjo.

Congratulations,
Richard Miles
BAA

 

 



       
 


    
COD A77
OBS J.-F. Soulier
MEA J.-F. Soulier
TEL 0.20-m f/4 Newtonian reflector + CCD
NET UCAC-4
0029P         C2017 07 02.06449 21 39 04.82 -13 20 32.6          15.07N      A77
0029P         C2017 07 02.06521 21 39 04.81 -13 20 33.2          15.11N      A77
0029P         C2017 07 02.06593 21 39 04.80 -13 20 33.3          14.98N      A77
0029P         C2017 07 02.06665 21 39 04.77 -13 20 32.8          14.95N      A77
0029P         C2017 07 02.06738 21 39 04.76 -13 20 32.9          14.93N      A77
0029P         C2017 07 02.06810 21 39 04.72 -13 20 33.1          14.88N      A77
0029P         C2017 07 02.06882 21 39 04.75 -13 20 32.9          14.84N      A77
0029P         C2017 07 02.06955 21 39 04.73 -13 20 33.3          14.80N      A77
0029P         C2017 07 02.07027 21 39 04.71 -13 20 33.0          14.85N      A77
0029P         C2017 07 02.07099 21 39 04.70 -13 20 32.7          14.82N      A77
0029P         C2017 07 02.07171 21 39 04.68 -13 20 33.0          14.71N      A77
0029P         C2017 07 02.07243 21 39 04.68 -13 20 33.0          14.70N      A77
0029P         C2017 07 02.07316 21 39 04.69 -13 20 32.9          14.71N      A77
0029P         C2017 07 02.07388 21 39 04.66 -13 20 32.8          14.69N      A77
0029P         C2017 07 02.07460 21 39 04.65 -13 20 33.2          14.63N      A77
0029P         C2017 07 02.07532 21 39 04.64 -13 20 33.2          14.67N      A77
0029P         C2017 07 02.07605 21 39 04.63 -13 20 32.8          14.69N      A77
0029P         C2017 07 02.07677 21 39 04.64 -13 20 32.6          14.64N      A77
0029P         C2017 07 02.07749 21 39 04.62 -13 20 33.1          14.61N      A77
0029P         C2017 07 02.07821 21 39 04.59 -13 20 32.7          14.55N      A77
0029P         C2017 07 02.07894 21 39 04.59 -13 20 33.4          14.59N      A77
0029P         C2017 07 02.07966 21 39 04.58 -13 20 33.1          14.51N      A77
0029P         C2017 07 02.08038 21 39 04.54 -13 20 32.9          14.53N      A77
0029P         C2017 07 02.08110 21 39 04.55 -13 20 32.8          14.57N      A77
0029P         C2017 07 02.08182 21 39 04.51 -13 20 33.3          14.57N      A77
0029P         C2017 07 02.08254 21 39 04.53 -13 20 33.4          14.50N      A77
0029P         C2017 07 02.08327 21 39 04.54 -13 20 33.2          14.53N      A77
0029P         C2017 07 02.08399 21 39 04.50 -13 20 32.9          14.55N      A77
0029P         C2017 07 02.08471 21 39 04.50 -13 20 33.3          14.44N      A77
0029P         C2017 07 02.08543 21 39 04.49 -13 20 33.3          14.49N      A77
0029P         C2017 07 02.08615 21 39 04.47 -13 20 32.9          14.46N      A77
0029P         C2017 07 02.08688 21 39 04.44 -13 20 33.0          14.45N      A77
0029P         C2017 07 02.08760 21 39 04.46 -13 20 33.4          14.43N      A77
0029P         C2017 07 02.08832 21 39 04.46 -13 20 33.0          14.47N      A77
0029P         C2017 07 02.08904 21 39 04.42 -13 20 32.8          14.44N      A77
0029P         C2017 07 02.08977 21 39 04.42 -13 20 33.1          14.35N      A77
0029P         C2017 07 02.09049 21 39 04.42 -13 20 33.3          14.42N      A77
0029P         C2017 07 02.09121 21 39 04.35 -13 20 33.6          14.45N      A77
0029P         C2017 07 02.09193 21 39 04.40 -13 20 33.3          14.36N      A77
0029P         C2017 07 02.09265 21 39 04.37 -13 20 33.2          14.36N      A77
0029P         C2017 07 02.09338 21 39 04.35 -13 20 33.5          14.36N      A77
0029P         C2017 07 02.09410 21 39 04.36 -13 20 33.4          14.40N      A77
0029P         C2017 07 02.09482 21 39 04.33 -13 20 33.5          14.37N      A77
0029P         C2017 07 02.09554 21 39 04.31 -13 20 33.2          14.33N      A77
0029P         C2017 07 02.09627 21 39 04.28 -13 20 33.1          14.33N      A77
0029P         C2017 07 02.09699 21 39 04.31 -13 20 33.3          14.36N      A77
0029P         C2017 07 02.09771 21 39 04.31 -13 20 33.7          14.31N      A77
0029P         C2017 07 02.09843 21 39 04.29 -13 20 33.6          14.30N      A77
0029P         C2017 07 02.09916 21 39 04.25 -13 20 33.5          14.32N      A77
0029P         C2017 07 02.09988 21 39 04.25 -13 20 33.1          14.35N      A77
0029P         C2017 07 02.10060 21 39 04.24 -13 20 33.2          14.28N      A77
0029P         C2017 07 02.10132 21 39 04.23 -13 20 33.5          14.27N      A77
0029P         C2017 07 02.10204 21 39 04.21 -13 20 33.2          14.26N      A77
0029P         C2017 07 02.10277 21 39 04.21 -13 20 33.5          14.23N      A77
0029P         C2017 07 02.10349 21 39 04.19 -13 20 33.6          14.23N      A77
0029P         C2017 07 02.10421 21 39 04.19 -13 20 33.5          14.21N      A77
0029P         C2017 07 02.10494 21 39 04.18 -13 20 33.6          14.25N      A77
0029P         C2017 07 02.10566 21 39 04.17 -13 20 33.7          14.26N      A77
0029P         C2017 07 02.10638 21 39 04.13 -13 20 33.8          14.24N      A77
0029P         C2017 07 02.10710 21 39 04.15 -13 20 33.9          14.25N      A77
0029P         C2017 07 02.10849 21 39 04.11 -13 20 33.8          14.18N      A77
0029P         C2017 07 02.10922 21 39 04.12 -13 20 33.6          14.24N      A77
0029P         C2017 07 02.10994 21 39 04.11 -13 20 33.3          14.22N      A77
0029P         C2017 07 02.11066 21 39 04.07 -13 20 33.5          14.24N      A77
0029P         C2017 07 02.11138 21 39 04.06 -13 20 33.4          14.22N      A77
----- end -----



New small outburst



 






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