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Comet C/2015 V2 (Johnson)

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#1 Artom

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Posted 20 January 2017 - 05:29 AM

C/2015 V2 (Johnson), DSLR
m1=11.7, Dia.=1.2', DC=6
Quite long tail (>5.3')

 

SQM-L 20.1, Konchezero, oval aperture, 3.73'x1.82' (coma and bright part of tail included), Quite long tail, moon (Ph=0.48, 56 deg distance).

Attached Thumbnails

  • 20160120_c2015v2_16x30s_300.jpg

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#2 LivingNDixie

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Posted 20 January 2017 - 12:33 PM

Great shot!

#3 Rich (RLTYS)

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Posted 06 February 2017 - 10:06 AM

Using the T1hm scope at the Slooh Observatory I was able to get this image of V2 Johnson.

 

Rich (RLTYS)

 

 

Attached Thumbnails

  • C2015 V2 Johnson T1hm 1-30-17bwr.png

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#4 Edward E

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Posted 06 February 2017 - 01:27 PM

Great images!  I will have to get up extra early to have a look at this one.



#5 vakulenko_sergiy

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Posted 28 February 2017 - 09:41 PM

My attempt to observe C/2015 V2:

 

ED80, OSC QHY8, 15x600s

2017 feb 27 2015V2 ed80 qhy8 X15
 
Comets proper motion for 2hr:

Edited by vakulenko_sergiy, 28 February 2017 - 09:42 PM.

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#6 Aquarellia

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Posted 01 March 2017 - 04:55 AM

Great serie of pictures here !

Probably because this comet is not periodic, today this is the only active comet with a real nice tail since end november 2016.

 

flame.gif Do someone know if the site http://www.cometbase.net/ is completely dead ?

Artyom Novichonok was asking me to post comet observations on this site, I did a long work (40 years of comets observations) it seems that today the site is completely dead without any notice.  I send a lot of messages and email : I got no single answer.  This is not very fair... Now I'm angry...flame.gif

 

Michel



#7 vakulenko_sergiy

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Posted 02 March 2017 - 03:42 AM

At same time I've captured 2015V2 with second scope. Results:

8" F/4 Newton, DIY OSC Cam8 (icx453), 32x300sec

2017 02 27 2015V2 newt8 cam8 X32

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#8 vakulenko_sergiy

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Posted 02 March 2017 - 04:20 AM

Hello Michel,
Does Artyom N. have information why www.cometbase.net is down?
www.cometbase.net has worked last time when I visited it, but it was long time ago.



#9 Aquarellia

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Posted 02 March 2017 - 08:23 AM

Hello Michel,
Does Artyom N. have information why www.cometbase.net is down?
www.cometbase.net has worked last time when I visited it, but it was long time ago.

No, no answer fom him or the team

Michel



#10 Rich (RLTYS)

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Posted 09 March 2017 - 06:39 PM

One of my latest images of V2 Johnson passing the star Tau Her. Notice the color contrast between the comet and the star.

 

Rich (RLTYS)

Attached Thumbnails

  • C2015 V2 Johnson plus Tau Her T2hm 3-6-17r.png

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#11 LivingNDixie

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Posted 10 March 2017 - 06:13 PM

Wonderful image, once the Moon gets out of the sky next week, this should be a nice comet to chase down!

#12 Chopin

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Posted 14 March 2017 - 07:00 PM

Fantastic images! I'm sorry if I missed it, but does anyone have an estimated visual magnitude on this one?



#13 Aquarellia

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Posted 14 March 2017 - 11:59 PM

Fantastic images! I'm sorry if I missed it, but does anyone have an estimated visual magnitude on this one?

Hi 

From aerith.net the magnitude +9.8 is lower than the +8.8 predicted.  Anyway since nov 2016 this little comet is nice to observe with a conspicuous tail.

Michel



#14 Chopin

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Posted 15 March 2017 - 09:38 AM

 

Fantastic images! I'm sorry if I missed it, but does anyone have an estimated visual magnitude on this one?

Hi 

From aerith.net the magnitude +9.8 is lower than the +8.8 predicted.  Anyway since nov 2016 this little comet is nice to observe with a conspicuous tail.

Michel

 

Thanks, Michel! 



#15 Vickx

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Posted 18 March 2017 - 03:15 PM

Michel, the Cometbase website is still running...

 


flame.gif Do someone know if the site http://www.cometbase.net/ is completely dead ?

Artyom Novichonok was asking me to post comet observations on this site, I did a long work (40 years of comets observations) it seems that today the site is completely dead without any notice.  I send a lot of messages and email : I got no single answer.  This is not very fair... Now I'm angry...flame.gif

 

 


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#16 johnpd

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Posted 19 March 2017 - 04:13 AM

Tried Saturday evening with a SV80 refractor. No luck.

 

JohnD



#17 Exnihilo

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Posted 19 March 2017 - 10:22 PM

Looked at this last night before moonrise with my 11-inch edge HD, from my dark sky site in AZ.  Good view, and easily made out the tail.  To me the tail looked somewhat "forked."  I just grabbed the coordinates from theskylive and went right to it.


Edited by Exnihilo, 19 March 2017 - 10:24 PM.

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#18 andrew hampton

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Posted 22 March 2017 - 07:49 PM

Had my first view of Comet Johnson tonight - It was quite a tough object !  Viewed in my 4" celestron wide view at 31x and 38x. It was much smaller and fainter than Comet 41P and a bit more streamlined, possibly around mag. 9

 

 

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#19 Aquarellia

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Posted 26 March 2017 - 01:43 PM

 

Michel, the Cometbase website is still running...

 


flame.gif Do someone know if the site http://www.cometbase.net/ is completely dead ?

Artyom Novichonok was asking me to post comet observations on this site, I did a long work (40 years of comets observations) it seems that today the site is completely dead without any notice.  I send a lot of messages and email : I got no single answer.  This is not very fair... Now I'm angry...flame.gif

 

 

Still no raction from them.

Thank you for your message and your PM comments, really thak you!

Anyway Cometbase.net is not running, your link (http://195.209.248.207/en/site/index) is maybe running but who know it ?

Look at the end of the main page the last comet discovered was Octobre 2016 ??? So I forgot this database.

And still looking for a good replacement.

Michel


Edited by Aquarellia, 26 March 2017 - 01:51 PM.


#20 Aquarellia

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Posted 26 March 2017 - 01:49 PM

After a nice period with 41P and just before the daylight I observed this so long, so nice and faithful littke comet.

How my back, that was really close to the zenith and you know with a long refractor,... ho my neck!

 

Here my sketch :

C2015V2-20170326_l.jpg

The estimated magn was +9.5, with a CD=5, a coma (1') and a tail (2').  This image is very similar that my first observation, that was 30/11/2016.

 

Michel


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#21 Jure Atanackov

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Posted 26 March 2017 - 07:45 PM

Got a good view of the comet under SQM 21.55 mag/"2 skies in my 11x70B; also saw it in 7x50B - will be posting my estimate later.


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#22 han59

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Posted 28 March 2017 - 01:19 PM

This comet is an interesting imaging object. Has a nice tail. Current apparent movement is very low only a few arcseconds/hour. So with a stacked image both stars and comet are sharp. Here my image from last night. (using old flats)

 

Han

 

C/2015V2_Johnson
Telescope 100 mm APO astrograph APO100Q, F5,8
Camera ASI1600MM-Cool, 20 x 200 sec, bin x2
Datum: 2017-3-28 around 00:00 AM UTC

 

 

C2015V2_Johnson -25c ditt 2.5,  2017-3-27, 20x200sec, APO100Q, ASI1600MM-Cool v3 resized.jpg


Edited by han59, 28 March 2017 - 01:20 PM.

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#23 Aquarellia

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Posted 28 March 2017 - 01:46 PM

Cool Han, a very nice souvenir !

Michel



#24 39.1N84.5W

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Posted 29 March 2017 - 06:40 AM

I've been waiting for a clear morning to go out and image this comet. Beautiful shot here.

#25 Rich (RLTYS)

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Posted 30 March 2017 - 07:10 AM

Han your image looks like what I took on the 29th. It's shape (tail) appears to be changing.

 

Rich (RLTYS)




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