Jump to content


Photo

C/2012 K5 in Bootes

  • Please log in to reply
24 replies to this topic

#1 Special Ed

Special Ed

    Fly Me to the Moon

  • *****
  • Posts: 7064
  • Joined: 18 May 2003
  • Loc: Greenbrier County, WV 38N, 80W

Posted 22 November 2012 - 01:06 PM

Hi,

There is a comet that promises to be a good one now visible in the early morning in the constellation Bootes. It is predicted to steadily brighten through December and travel from one end of Ursa Major to the other. See the C/2012 K5 thread in the SS Observing forum for more details. And remember--comet predictions can be unreliable.

The comet was easy to spot in my low power wide field eyepiece at 75x. I pumped up the magnification for the sketch just so I could see if there was anything to see, but it's still pretty small. We'll keep our fingers crossed. :cool:

I did the sketch at the ep with a 2B pencil on Strathmore paper, adjusted the gamma and levels a little bit, added a little blur, and flipped it digitally to get the correct view.

Good luck if you decide to go for this comet. Since it's a morning comet, you'll be racing the sunrise, so you can't linger.

Attached Files



#2 Asbytec

Asbytec

    Guy in a furry hat

  • *****
  • Posts: 8246
  • Joined: 08 Aug 2007
  • Loc: La Union, PI

Posted 22 November 2012 - 01:15 PM

Michael, excellent find. I haven't seen a comet in a while, maybe this one. Thanks for bringing it up. Okay, I'll check that forum, thanks again.

#3 Heidescoper

Heidescoper

    Ranger 4

  • -----
  • Posts: 323
  • Joined: 21 Nov 2010
  • Loc: Niedersachsen, Germany

Posted 23 November 2012 - 02:19 AM

hi Ed,

wow, very interesting tail :D!
good work. I observed K5 last week ( 14.Nov)with my 10"Dobson.
But he stood very deep( 13° high) in the evening.
The sky was not perfectly clear.
I measured ~ 10.5mag without seeing a tail.

Bye Christian

#4 Jef De Wit

Jef De Wit

    Mercury-Atlas

  • *****
  • Posts: 2754
  • Joined: 06 Mar 2009
  • Loc: Hove, Belgium

Posted 23 November 2012 - 02:53 AM

Fine sketch! A mag 10.5 comet ain't possible for me in my light polluted sky. I hope he will brighten a lot!

#5 Chopin

Chopin

    Canis Insanus

  • *****
  • Posts: 4585
  • Joined: 03 Feb 2005
  • Loc: In the doghouse.

Posted 23 November 2012 - 09:58 AM

Michael, great sketch. And thanks you so much for the comet warning!

#6 Tommy5

Tommy5

    Mercury-Atlas

  • -----
  • Posts: 2814
  • Joined: 28 Mar 2004
  • Loc: Chicagoland

Posted 23 November 2012 - 10:43 AM

Very nice comet sketch, i'll have to keep an eye on this one, hopes it brightens dramatically ,thanks for sharing.

#7 frank5817

frank5817

    Cosmos

  • *****
  • Posts: 8438
  • Joined: 13 Jun 2006
  • Loc: Illinois

Posted 23 November 2012 - 01:39 PM

Michael,

This comes as a surpise to me. I have not been paying attention. Impressive sketch of what looks to be a fine comet. Will be checking this one out.
Love your sketch, it has a Hubble's Variable neb. look to it.

Frank :)

#8 niteskystargazer

niteskystargazer

    Gemini

  • *****
  • Posts: 3102
  • Joined: 05 Oct 2009
  • Loc: 41-43'-28" N 87-42'-39" W

Posted 23 November 2012 - 03:08 PM

Michael,

Good sketch of Comet c/2012 K5 :).

CS,KLU,

:thanx:,

Tom

#9 Special Ed

Special Ed

    Fly Me to the Moon

  • *****
  • Posts: 7064
  • Joined: 18 May 2003
  • Loc: Greenbrier County, WV 38N, 80W

Posted 25 November 2012 - 09:39 PM

Thanks to all of you for your comments. This comet will be better placed for all northern hemisphere observers as we get into December and January so keep it in mind as a target. I'd love to see other observers take on C/2012 K5, especially if it fulfills its promise. :)

#10 Andrev

Andrev

    Skylab

  • *****
  • Posts: 4113
  • Joined: 08 Feb 2011
  • Loc: Montreal, Quebec, Canada

Posted 25 November 2012 - 10:28 PM

Michael.

Beautiful sketch and thanks for the info about this comet. Looking forward for more sketches of this one.

Andre.

#11 Special Ed

Special Ed

    Fly Me to the Moon

  • *****
  • Posts: 7064
  • Joined: 18 May 2003
  • Loc: Greenbrier County, WV 38N, 80W

Posted 26 November 2012 - 08:46 PM

Thanks, Andre. :cool: Comets are like DSO's that move--very much fun to track once they've been discovered (that's the hard part).

#12 JimPie

JimPie

    Viking 1

  • -----
  • Posts: 522
  • Joined: 10 Nov 2007
  • Loc: S.E.Michigan

Posted 27 November 2012 - 11:41 AM

Very nice sketch Michael,
Since this is an early morning comet, I'll have to follow your posts to keep up.

#13 Chopin

Chopin

    Canis Insanus

  • *****
  • Posts: 4585
  • Joined: 03 Feb 2005
  • Loc: In the doghouse.

Posted 27 November 2012 - 12:19 PM

Hey Michael, happy birthday.

#14 Special Ed

Special Ed

    Fly Me to the Moon

  • *****
  • Posts: 7064
  • Joined: 18 May 2003
  • Loc: Greenbrier County, WV 38N, 80W

Posted 27 November 2012 - 03:24 PM

Jim,

It will be an whole night comet by the end of December, I believe. I won't have to carry you for too long. ;)

Thanks, Jason. :)

Btw, I forgot to mention in my original post that I saw the Zodiacal Light while I was waiting for the comet to rise. That was a real bonus but I think would be hard (for me ) to sketch. Anyone have any sketches of the Zodiacal Light?

#15 Uwe Pilz

Uwe Pilz

    Apollo

  • *****
  • Posts: 1028
  • Joined: 16 May 2008
  • Loc: Leipzig, Germany

Posted 28 November 2012 - 12:30 AM

Until now I did not observe the comet in the morning sky. Thank you for that reminder and for the indication that there is much detail to observe.

#16 Acheron

Acheron

    Viking 1

  • *****
  • Posts: 823
  • Joined: 07 Aug 2005
  • Loc: Croatia, Velika Gorica

Posted 28 November 2012 - 04:49 AM

Nice sketch and reason to place this comet on top of my to-do list.

#17 Special Ed

Special Ed

    Fly Me to the Moon

  • *****
  • Posts: 7064
  • Joined: 18 May 2003
  • Loc: Greenbrier County, WV 38N, 80W

Posted 28 November 2012 - 12:00 PM

Uwe, Vedran--thanks! We'll be looking for some sketches of this comet from you--hope the weather will cooperate. The waning Moon will help, too.

#18 phily

phily

    Mariner 2

  • -----
  • Posts: 259
  • Joined: 18 Dec 2004
  • Loc: Kent, UK

Posted 29 November 2012 - 11:27 AM

Great sighting Michael
Phil

#19 Special Ed

Special Ed

    Fly Me to the Moon

  • *****
  • Posts: 7064
  • Joined: 18 May 2003
  • Loc: Greenbrier County, WV 38N, 80W

Posted 03 December 2012 - 09:40 PM

Sorry to take so long to say thanks, Phil. Maybe now that Luna is going dark we can see if this bad boy has changed any. You should be able to get a good look at your high latitude location.

#20 Special Ed

Special Ed

    Fly Me to the Moon

  • *****
  • Posts: 7064
  • Joined: 18 May 2003
  • Loc: Greenbrier County, WV 38N, 80W

Posted 13 January 2013 - 12:45 AM

Hi Everyone,

I've been off the boards for a month due to work and weather. My last observation of C/2012 K5 was November 22nd when it was in Bootes with almost daily solid cloud cover since then so when it cleared off the evening of the 7th (8th UT), I was anxious to get another look at the comet. By now it was in Taurus very near Aldebaran.

I was surprised how bright it was. My GoTo is a little off and put the comet core just outside the field of view but I could see the glow of the coma on the edge of the FOV.

This is a fast mover--probably the fastest I have ever observed. I placed the comet just below the center of the FOV so I could include the tail in my sketch and in a half hour it had moved completely out of view.

Speaking of the tail--it did not appear uniformly diffuse but rather appeared to have streamers.

I did the sketch at the eyepiece with a 2B pencil and a blending stump. It was cold that night--25°F--so I used my chemical hand warmers and fingerless gloves. After scanning I tweaked the gamma and contrast a little, inverted a copy to get the negative, and flipped the drawing for the correct view.

I'll tell you what people--it's getting crowded up there in space. A meteor went through my FOV during this observation followed shortly thereafter by a satellite.

Best,

Attached Files



#21 Aquarellia

Aquarellia

    Viking 1

  • -----
  • Posts: 776
  • Joined: 27 Oct 2012
  • Loc: Provence, France

Posted 13 January 2013 - 03:52 AM

Hi Michael,
Very nice sketch, it´s a good idea to share with us the two visions, black and white and,... white and black.
Michel

#22 frank5817

frank5817

    Cosmos

  • *****
  • Posts: 8438
  • Joined: 13 Jun 2006
  • Loc: Illinois

Posted 13 January 2013 - 12:12 PM

Michael,

It's great you got another chance to capture this tailed interloper. Very fine sketch.

Frank :)

#23 JimPie

JimPie

    Viking 1

  • -----
  • Posts: 522
  • Joined: 10 Nov 2007
  • Loc: S.E.Michigan

Posted 13 January 2013 - 02:16 PM

Michael,
Nice sketch and report.
If only I could have even a moderately transparent sky.

#24 niteskystargazer

niteskystargazer

    Gemini

  • *****
  • Posts: 3102
  • Joined: 05 Oct 2009
  • Loc: 41-43'-28" N 87-42'-39" W

Posted 14 January 2013 - 10:14 AM

Michael,

Good sketches of Comet C/2013 K5 (Jan. 8) :).

CS,KLU,

:thanx:,

Tom

#25 Special Ed

Special Ed

    Fly Me to the Moon

  • *****
  • Posts: 7064
  • Joined: 18 May 2003
  • Loc: Greenbrier County, WV 38N, 80W

Posted 14 January 2013 - 09:31 PM

Thank you very much folks. :)

@Aquarellia--I like to show the original and inverted view because, although the inverted view gives a sense of the eyepiece view, some detail is always more visible in the original (black on white) view. Glad you liked it, too.






Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics