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26631

C/2015 ER61 and its fragment "b": animation 3-21 June 2017

Dear All, digging in our archives, we have found first evidence of fragment B on 2 June 2017, this providing some baseline to see the splitting event in
Gianluca Masi
9:33 AM
#26631
 
26630

Interview with visual comet discoverer Shigeki Murakami

Hi to all,  I finished my new astro-interview, this time with visual comet discoverer from Japan - Shigeki Murakami. He believes that visual comet hunters
Stefan Kürti
Jun 24
#26630
 
26629

Re: A comet-like object on my frame of Scorpius taken on May 1, 2017

Here is another frame of the comet. https://www.flickr.com/photos/hiroc/34676045033 https://www.flickr.com/photos/hiroc/34676045033 Thanks for members in
hiroc070717
Jun 23
#26629
 
26628

Re: New Tool for comet observers

Thanks for quick replay ;)  I never used variable stars method, it's similar like interpolate in conclusion.  regardsM.J. On Friday, June 23, 2017 2:55 PM,
Maciek Jarmoc
Jun 23
#26628
 
26627

Re: A comet-like object on my frame of Scorpius taken on May 1, 2017

Thanks Stephen ! I could enjoy pulsation with excitement like a boy for a while. Best wishes, Hisayoshi Kato Tokyo, Japan
hiroc070717
Jun 23
#26627
 
26626

Re: A comet-like object on my frame of Scorpius taken on May 1, 2017

Hisayoshi, it may be comet 65P/Gunn. Perhaps you could check it's orbital parameters. It's a wonderful picture ! Kind regards Stephen McCann Southampton, UK On
Stephen McCann
Jun 23
#26626
 
26625

Re: New Tool for comet observers

Hello Maciek, "Argelander degree" more common for visual observers of variable stars. Basically it is a scale of magnitude difference impression. The
Jakub Černý
Jun 23
#26625
 
26624

A comet-like object on my frame of Scorpius taken on May 1, 2017

There looks to be a comet-like object on my frame taken on May 1, 2017. https://www.flickr.com/photos/hiroc/35436975856
hiroc070717
Jun 23
#26624
 
26623

Re: New Tool for comet observers

Great tool! Can you explain how work with Argelander degree - when i'm selecting star? What is scale of 1-10?  regardsM.J. On Thursday, June 22, 2017 10:48
Maciek Jarmoc
Jun 23
#26623
 
26622

New Tool for comet observers

Hello all, after 3 month I finally releasing beta version of new software for comet observers. You can download KOPR v0.51 here: Windows:
Jakub Cerny
Jun 22
#26622
 
26621

C/2015 ER61 and its fragment "b": a new image (21 June 2017)

Dear All, here it is a new image showing this fragment, recently announced via MPC:
Gianluca Masi
Jun 22
#26621
 
26620

continuing . . .

Hello everyone, Many of you may remember the ³Countdown to 500 Comets² I started a decade ago, and finished some five years later, and then a brief
Alan Hale
Jun 20
#26620
 
26619

Re: fragment of comet C/2015 ER61

Good morning Erik and the list. With an obstruction of 20% of the tube of the telescope with the shelter and a strong Air Mass, I nevertheless the componet-b.
Soulier Jean-François
Jun 19
#26619
 
26618

Comet C/2015 ER61, fragment "b": 17 June 2017

Dear All, here it is an animation showing this fragment, recently announced via MPC:
Gianluca Masi
Jun 18
#26618
 
26617

fragment of comet C/2015 ER61

Hello, During our daily follow-up of comet C/2015 ER61, we could see - since a couple of days - the presence of a fragment near the nucleus of comet C/2015
Erik Bryssinck
Jun 18
#26617
 
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