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Comet 68P/Klemola

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#1 Aquarellia

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Posted 16 September 2019 - 03:33 PM

It looks that this comet 68P/Klemola is now much more brillant than expected.

I observe the field in the moon glow and detect a magnitude 10.5 or 11 object but the shape is nearly like a star.  That was sept 16 - 20hUTC

If someone can confirm ?

Michel


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#2 Rich (RLTYS)

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Posted 17 September 2019 - 06:49 AM

Michel, from images I've seen it does appear somewhat starlike with a short, faint fan shaped tail. I will try to image it if the weather cooperates. 


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#3 Aquarellia

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Posted 17 September 2019 - 08:26 AM

Michel, from images I've seen it does appear somewhat starlike with a short, faint fan shaped tail. I will try to image it if the weather cooperates. 

Ok, I will try to confirm tonight,... if the weather cooperates too

Here my "maybe the comet" sketch

68p-20190916_ll.jpg

 

Michel



#4 Special Ed

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Posted 17 September 2019 - 08:33 AM

Good sketch, Michel.  I hadn't heard much about this one--where is it?



#5 Aquarellia

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Posted 17 September 2019 - 09:37 AM

Good sketch, Michel.  I hadn't heard much about this one--where is it?

Hi Michael

In the constellation Serpens here a quick map foem SkySafari Pro

SkySafari.jpg

But be aware that due to the Moon glow, I'm not sure of this observation

Michel


Edited by Aquarellia, 17 September 2019 - 09:52 AM.


#6 Aquarellia

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Posted 17 September 2019 - 09:45 AM

  • This comet was discovered in 1965 from the south hemisphere by the American astronomer: Arnold Richard Klemola. with a period of +/- 11 years
  • At the next apparition the comet was observed by Gérard Sause at the Observatoire de Haute Provence in France, (close to here) on 6 August 1976 with a brightness of magnitude 12.
  • Then in 1987 J. Gibson of the Palomar Observatory, obtained images with the 1.5-meter reflector.  It appeared essentially stellar (as for me yesterday), with a faint magnitude of 19.
  • It was observed again on 29 March 1997 by our friend Carl Hergenrother

Here the last magnitude curve from aerith

 

aerith.jpg

 

 

II just find this from the BAA Comet section :

Comet 68P/Klemola The comet was observed at 12th magnitude at the end of July 2019 by JJ Gonzalez, rather brighter than expected. It could brighten to 10th magnitude.

 

Michel


Edited by Aquarellia, 17 September 2019 - 10:10 AM.

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#7 Special Ed

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Posted 17 September 2019 - 02:05 PM

Thanks, Michel.  smile.gif 



#8 Dan Crowson

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Posted 18 September 2019 - 12:06 AM

I pointed at this one tonight before the moon and astrometrica says mag 15.3.

Dan



#9 goodricke1

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Posted 19 September 2019 - 05:33 AM

I took an image of this area Michel and no comet visible down to mag 13.

 

Frank.



#10 Aquarellia

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Posted 19 September 2019 - 11:56 AM

I pointed at this one tonight before the moon and astrometrica says mag 15.3.

Dan

 

 

I took an image of this area Michel and no comet visible down to mag 13.

 

Frank.

I agree, for me too this comet was fainter than 13, based on the aerith curve, is that possible that the magnitude change by example via the rotation of the nucleus ?

Otherwise I don't see this comet september the 16th undecided.gif

Michel



#11 goodricke1

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Posted 19 September 2019 - 06:43 PM

I agree, for me too this comet was fainter than 13, based on the aerith curve, is that possible that the magnitude change by example via the rotation of the nucleus ?

Otherwise I don't see this comet september the 16th undecided.gif

Michel

 

Yesterday's observation from ATLAS has it almost 3 magnitudes fainter than Africano, so if there was an outburst it seems to have subsided for the moment.


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#12 Dan Crowson

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Posted 21 September 2019 - 01:58 PM

68P/Klemola
2019-09-18 - Animas, NM
03:10:07 - 03:39:24 UTC
Astro-Tech AT12RCT - SBIG STF-8300M
Luminance:  15x120s binned 2x2
 
https://www.flickr.c...son/48770992267
 
See observatory partner Gregg Ruppel’s image taken at the same time here - http://www.greggsast...8P Klemola.html.

Dan


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#13 Aquarellia

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Posted 21 September 2019 - 03:26 PM

A very good animation Dan!  I like it a lot

I recognizes easily the field.

Michel




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