[BAA Comets] C/2017 T2 PANSTARRS

[Charles S Morris]

 Hi all,
I did a preliminary analysis of last night's image of C/2018 T2.  The derived m1 magnitude was fainter than what I expected when I watched the images being taken - I should have learned by now!  Any way,
August 6.48 UT:  m1= 14.0, Dia = 0.55', Tail 1.4' in PA 229  40.6 cm f/6.8 SCT + 8300M CCD (unfiltered,peaks in visual)
Tonight managed to image 68P and C/2017 K2 before the outer band of Southwest US monsoon moisture (high clouds) moved in from the west.  I am hoping it will move out so I can do morning observations.  This is probably the last chance for morning observations until the weekend as low clouds and fog is supposed to return,
Charles Morris
Dreamweaver Observatory, Fillmore, CA
    On Tuesday, August 6, 2019, 08:35:01 PM PDT, David Swan <djswanastro at outlook.com> wrote:  
 
 Captured a few frames of C/2017 T2 this morning. Drifting cloud so not ideal. Great to see the Pleiades and Hyades though with the naked eye again!

https://britastro.org/node/18951

Nuclear mag ~ 14

Background sky not great for estimating total mag

David Swan



________________________________________
From: Comets-disc <comets-disc-bounces at lists.britastro.org> on behalf of Charles S Morris <cometguy3783 at yahoo.com>
Sent: 06 August 2019 05:12
To: BAA Comets discussion list
Subject: Re: [BAA Comets] C/2017 T2 PANSTARRS

Hi all,

My first post to this group.

I just imaged 17 T2 with my 41cm f/6.8 SCT + unfiltered CCD - the CCD peaks in the visual..  If you had seen my skies at 3:30 you wouldn't have thought it possible to get anything, but the skies got better and I got 29P and 17 T2.  The reason for the note is that the comet is brighter than 14.0.  From the images (and I will analyze it later today), I would say that it was between 12.0 and 13.0 based on the magnitudes of surrounding stars.  Of course, the analysis will tell the tale.

Also, got 65P, 16 R2, and 17 K2 in the evening when the sky was in better shape.

For those of you that don't know Southern California, we sometimes get monsoon moisture from the Gulf of Mexico.  That is what I was fighting tonight.  My good friend Alan Hale loses much of the summer because he gets the monsoon moisture much more than I do.  On the other hand, I get low clouds and fog from the Pacific Ocean which is 25 miles to the west.  I am at about 500' elevation.  [Yes, we also have mountains

It is after 5am here and I need some sleep.  Hopefully, I will post an image later today.

Best regards,

Charles

Charles Morris
Dreamweaver Observatory, Fillmore, CA



On Monday, August 5, 2019, 12:48:00 PM PDT, Nick James <ndj at nickdjames.com> wrote:


Very nice image. This is certainly not a 9th mag comet.

Nick.

On 05/08/2019 20:43, David Swan wrote:
> Link to Alan's pic [marginally better than Nick's - sorry ;) ]
>
> https://twitter.com/AlanHale20
>
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