[BAA Comets] 21p

[Nick James]

Peter,

Thanks. Your astrometry fits in nicely with recent measures by others. 
Elements obtained from observations made during this return are attached.

Nick.

On 19/04/2018 16:01, Peter Carson wrote:
> Hi Nick and Denis,
> Not wanting to miss out I also imaged 21P earlier this morning, see 
> attached image. Unfortunately it was a little murky and the comet was 
> amongst a crowded star field so its tail is not visible.
> I measured the comet as being +1.6'RA and +0.2'Dec different to the 
> position calculated by using the MPC orbital elements.
> 
> Peter
> 
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