[BAA Comets] C/2015 V2 - increase in magnitude

[Nick James]

Hi Tony,

I get a total magnitude of 9.74 from a green filter ITel T24 image taken 
this morning:

http://www.nickdjames.com/Comets/2017/2015v2_20170404_0848_ndj.jpg

Reference is UCAC-4 V.

I got 9.88 with T21 on March 23 so I don't see a significant increase.

COMPHOT: 1.2.4 2017 03 23.374   9.88   9.78  21.03  26.59  15.72   614.0 
   1.91 Astrometrica 4.10.0.431 Nick James CK15V020 2015v2_ofs_0000.fit

COMPHOT: 1.2.5 2017 04 04.363   9.74   6.58  20.06  25.96  15.47   373.6 
   1.26 Astrometrica 4.10.0.431 Nick James CK15V020 2015v2_noofs_0000.fit

Nick.




On 04/04/2017 11:06, denis buczynski wrote:
> Hi Tony,The comet has developed and ion tail during the past few days, so there is something going on in terms of increased activity within the comet. Do your latest images show an enhancement of the ion tail?Best wishesDenis
>
>
>        From: Tony Angel <tony_angel_uk at hotmail.com>
>   To: BAA Comets discussion list <comets-disc at lists.britastro.org>
>   Sent: Tuesday, 4 April 2017, 8:02
>   Subject: [BAA Comets] C/2015 V2 - increase in magnitude
>
> Greetings,
>
>
> In the past 24 hours this comet has increased in magnitude
>
> 1.5 mag increase in 24 hours
> NET Gaia DR1
> Average
> CK15E61R KC2017 04 03.18593 20 40 36.83 -15 37 40.0 11.46N Z85
> CK15E61R KC2017 04 04.19440 20 45 41.70 -15 12 11.6  9.97N Z85
>
> Best Wishes,
>
> Tony.
>
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