[BAA Comets] Comet 29P/S-W

[Roger Dymock]

Hi Richard,

Thanks. Checking the nuclear mags on the Spanish Groups website at 
http://www.astrosurf.com/cometas-obs/ I see that the mag increased from around 16.3 mid April to
13.5 on 2 May and had subsided to 15.3 by 7 May. Unfortunately I caught it just before and just
after the outburst dates that's why I really would appreciate your predictions.

Regards

Roger Dymock
Email: roger.dymock at ntlworld.com
Tel: 023 92647986
Skype: rogerdymock67 or
Skype: rjvdymock
MPC Observatory Code: 940
Project Alcock http://www.britastro.org/projectalcock/


-----Original Message-----
From: comets-disc-bounces at britastro.org [mailto:comets-disc-bounces at britastro.org] On Behalf Of
Richard Miles
Sent: 08 May 2014 18:45
To: BAA Comets discussion list
Subject: Re: [BAA Comets] Comet 29P/S-W

Roger Dymock wrote:

> This comet appears to have brightened a little from around 13.4 mid April 
> to 12.8 May 6/7
> (observations by Kevin Hills and myself).
>
> Richard (Miles) - do you have any predictions for outbursts/brightening 
> over the next few weeks?


Roger,

Be careful not to be misled by Total Magnitude (m1) estimates of 29P as they 
are not sensitive to outbursting.

Only use Nuclear Magnitudes (m2).

If you check them out you will see that 29P outburst by 3.0 mag on 2014 May 
01. Jean-Francois Soulier discovered the outburst using SpacObs in Chile. It 
was 3 days later than my last prediction.

I have written an article for the Observers' Forum section of the BAA 
Journal on predicting outbursts of this comet. It should hopefully appear in 
the June issue.

It's rather the off-season for 29P as it is around Declination -29 degrees 
at the moment. Southern hemisphere observers are encouraged to monitor it 
visually and photometrically watching out for stellar-like outbursts of the 
nucleus.

Cheers,
Richard

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