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Comet C/2017 T2 (PanStarrs) is amazing!

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18 replies to this topic

#1 Uwe Pilz

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Posted 24 November 2019 - 12:12 AM

Dear observers, a few day ago I observed PanStarrs from city. I was surprised to see the tail without any problems. Yesterday I drove ti my rural observing site. With my 12 inch Dobsonian I observed the comet again. The sky was so lá lá, SQM only 20,7 in that region. There was much to see!

At the first glance I saw the distinct coma with a parabola like shock wave. At 144x, the central condensations was distinct.

The tail was asymmetric, the eastern part was more pronounced. Observing carefully, I saw two knots in the tail.

 

m1 was 10m6.

 

The comet starts to get interesting. It is well placed in Auriga. It will get an binocular object in February and can be reached with very small instrument until Juny. It will never get a real large comet, bit I think it is worth following.

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  • PanStarrs.jpg

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#2 Uwe Pilz

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Posted 24 November 2019 - 12:19 AM

I tried to find out much gas the comet evolves. Not too much: My Swan band filter gave onyl a moderate contrast increasing. T think there is a lot of dust in the tail.

 

For the monthly comet corner of our German Sterne und Weltraum journal I calculated how the tail changes in December. It is a fast shift! The image gives the situation for the 1st, 11th, 21th and 31th of December. The black bar is celestial west, the blue bar is the anti solar direction (where the ion tail is expected). My simulation calculates the dust tail only - this are the blue particles.

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  • tail.jpg

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#3 Aquarellia

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Posted 24 November 2019 - 12:36 AM

Thank you Uwe for this nice view and information.

I'm just waiting for a "no cloudy night"...

Michel



#4 pedrovillamiel

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Posted 24 November 2019 - 03:32 AM

Uwe, thanks for reporting the interesting evolution of this comet and thanks for showing the beautiful image we can see.
Congratulations on the entrance.
A greeting.

Pedro Villamiel



#5 Chiron0224

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Posted 24 November 2019 - 09:51 AM

Uwe, nice sketch.  I also really like all the information you've provided about the comet.  Where can I subscribe to Sterne und Weltraum?  I would love to use it to practice my German.

 

Uwe, schön Bild.  Ich mag wirklich auch alle die Information über der Komet, die du gebst.  Wo kann ich Sterne und Weltraum abonnieren?  Ich werde das für Deutsch practisieren versuchen lieben.



#6 Uwe Pilz

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Posted 24 November 2019 - 10:18 AM

You may subscribe to SuW here:

https://www.spektrum...d-weltraum/abo/

 

I think you want to choose between  "Jahresabo Print" (printed magazines) and "Jahresabo digital" (pdf only).


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#7 frank5817

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Posted 24 November 2019 - 11:32 AM

Uwe,

 

Very fine sketching and a nice amount of information about this comet.

 

Frank :)


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#8 Zorbathegeek

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Posted 24 November 2019 - 09:32 PM

Thanks for posting the sketch and information. This comet will be 10 degrees above my horizon on 10th July, and then climbing higher each evening. I'm happy that I can follow your posts in the meantime as I await its appearance down here.



#9 FRANC LILL

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Posted 25 November 2019 - 02:16 AM

Nice observation and very interesting simulation!

 

Thank you for sharing,

Francis



#10 niteskystargazer

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Posted 25 November 2019 - 09:43 AM

Uwe,

 

Very nice sketch of Comet C/2017 T2 (PanStarrs) (Is amazing!) smile.gif .

 

CS,KLU.

 

thanx.gif .

 

Tom



#11 DDEV

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Posted 26 November 2019 - 06:14 AM

Dear Uwe,

Very many thanks for your sketch of CometC/2017 T2. Your image and your description of it has encouraged me to check it out for myself.

Clear skies,

Darren.

#12 Special Ed

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Posted 26 November 2019 - 05:05 PM

I got a chance to see C/2017 T2 this morning between 2 and 3 am local time.  It was located in Auriga between Capella and "the Kids".  The comet was about 1 degree NE of epsilon Aur, the northernmost star of the three Kids.

 

I was surprised how very small it is--just barely there through my widefield 55mm ep @ 71x.  I looked at various magnifications up to 326x and could never clearly see much of a tail.  The comet appeared moderately condensed with a short diffuse tail to the SW.  At higher magnifications a stellar pseudonucleus would wink in and out of view with the seeing.  Over the course of an hour its movement to the NW was apparent.

 

I did the sketch in the house this morning based on my field notes (the temp last night was 32*F/0*C) using 2B and HB pencils on Bristol board.  I flipped it digitally to give the correct image view and inverted it digitally for the eyepiece view.

 

This comet will be a good one to follow.  smile.gif

 

C_2017_T2_2019.11.26_composite.v1.jpg


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#13 DDEV

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Posted 27 November 2019 - 07:28 AM

Very nice sketch....I note from your observational notes that you've access to pretty good dark site....That must help enormously. As you said this comet will be good to follow over the coming weeks!

Clear skies, and thank you for sharing your observations with us,

Darren.

#14 Special Ed

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Posted 27 November 2019 - 02:14 PM

Thanks, Darren.  smile.gif   Yes, I have dark skies which are a big help for viewing comets and faint fuzzies when the transparency is decent.  I almost never look at comets when the Moon is up, preferring to wait for dark skies.

 

Thanks for the likes!  flowerred.gif 



#15 Heidescoper

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Posted 29 November 2019 - 02:13 PM

hi all,

 

29.11.2019, 2:20 UT,  Region SQL 21.2 mag

 

12" f/4 Dobson, V 96x

 

20191129x2017T2CN.jpg

 

 

My measure:

10.4mag, DC 4, diameter 1.2`, tail 4` in PA 200°

 

CS

Christian

 


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#16 niteskystargazer

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Posted 30 November 2019 - 11:03 AM

 Christian,

 

Fine sketch of Comet C/2017 T2 smile.gif .

 

CS,KLU,

 

thanx.gif ,

 

Tom



#17 39.1N84.5W

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Posted 03 December 2019 - 10:07 PM

Great sketches everyone. Following...

#18 DDEV

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Posted 04 December 2019 - 04:48 AM

hi all,

29.11.2019, 2:20 UT, Region SQL 21.2 mag

12" f/4 Dobson, V 96x

20191129x2017T2CN.jpg


My measure:
10.4mag, DC 4, diameter 1.2`, tail 4` in PA 200°

CS
Christian



Love this sketch Christian...at what time did you observe the comet?

Many thanks,

Darren.

Edited by DDEV, 04 December 2019 - 04:50 AM.


#19 Chiron0224

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Posted 04 December 2019 - 08:21 PM

You may subscribe to SuW here:

https://www.spektrum...d-weltraum/abo/

 

I think you want to choose between  "Jahresabo Print" (printed magazines) and "Jahresabo digital" (pdf only).

Danke schön!




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