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Equipment Discussions >> Binoculars

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John_G
sage


Reged: 01/18/10

C2012 K5 (LINEAR)
      #5593185 - 12/28/12 07:27 PM Attachment (122 downloads)

My new year's wish is that the clouds will clear long enough before moon rise such that I can try for this comet with my binoculars. If the weather was good, I'd dress up warm and drive to a dark site. The attached SkyTools chart is for my 15x70s on the evening of Jan 1.

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Man in a Tub
Postmaster
*****

Reged: 10/28/08

Loc: Fogpatch, CA
Re: C2012 K5 (LINEAR) new [Re: John_G]
      #5593817 - 12/29/12 05:30 AM

This November thread, Comet C/2012 is ready for chasing, makes me think this comet is worth trying with binoculars. The opening post has a link with a magnitude chart.

Thanks for the heads up, John.

SkyTools Finder Chart removed. Trajectory was incorrect. Comets files was out-of-date.

Edited by Man in a Tub (01/01/13 12:33 AM)


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astrocy
super member


Reged: 11/28/09

Re: C2012 K5 (LINEAR) new [Re: Man in a Tub]
      #5593834 - 12/29/12 06:22 AM

A few nights ago I was able to observe the comet using 15x70 binoculars. I had to wake up very early in the morning after the moon had set and when the temperature was very low, but I think it was worth it. The comet was easily found and although quite faint, it was still visible with direct vision.

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John_G
sage


Reged: 01/18/10

Re: C2012 K5 (LINEAR) new [Re: astrocy]
      #5594064 - 12/29/12 10:16 AM

Good to know it's visible. I'd like to try for it next week at the first opportunity. I've also got 6 open clusters in Ori and Mon I'd like to try for. I'm working through the AL Deep Sky Binocular. Another 3 later this winter in Pup and then I'll have them all.

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ianatcn
sage


Reged: 05/26/10

Loc: Hampshire, UK
Re: C2012 K5 (LINEAR) new [Re: Man in a Tub]
      #5594092 - 12/29/12 10:27 AM

Todd, Thanks for the excellent map. I have just printed it off and will use it the next clear night we get here to look for the comet. I will let you all know how I get on.

Ian


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ronharper
Carpal Tunnel
*****

Reged: 02/14/06

Re: C2012 K5 (LINEAR) new [Re: ianatcn]
      #5594691 - 12/29/12 04:21 PM

Ooo, ooo! Going to try tonight before the moon pops up. Thanks for the heads up John and everybody.
Ron


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SMark
scholastic sledgehammer
*****

Reged: 08/29/11

Loc: Atlanta, GA USA
Re: C2012 K5 (LINEAR) new [Re: John_G]
      #5595484 - 12/30/12 02:20 AM

Quote:

Good to know it's visible. I'd like to try for it next week at the first opportunity. I've also got 6 open clusters in Ori and Mon I'd like to try for. I'm working through the AL Deep Sky Binocular. Another 3 later this winter in Pup and then I'll have them all.




M46 & M47 are among my favorites... maybe even my favorite binocular pair. They sit there like sisters but they are so different from each other. And there's a lot more happening there at the same time too... But as a binocular pair, these two clusters are at the top of my list.


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John_G
sage


Reged: 01/18/10

Re: C2012 K5 (LINEAR) new [Re: SMark]
      #5598581 - 12/31/12 07:02 PM Attachment (41 downloads)

Another chart attached for tonight. Good luck. I tried last night but it was too cold. Also, I now believe a tripod is a necessity for for wintertime astronomy. I need to get one.

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hallelujah
Post Laureate
*****

Reged: 07/14/06

Loc: North Star over Colorado
Re: C2012 K5 (LINEAR) new [Re: John_G]
      #5598848 - 12/31/12 10:30 PM

http://www.aerith.net/comet/catalog/2012K5/2012K5.html

http://astrobob.areavoices.com/2012/12/30/c2012-k5-an-evening-comet-worth-cha...


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Man in a Tub
Postmaster
*****

Reged: 10/28/08

Loc: Fogpatch, CA
Re: C2012 K5 (LINEAR) new [Re: hallelujah]
      #5598969 - 01/01/13 12:32 AM

OOPS!

I removed the SkyTools 3 chart I posted above. Although very recent, my comets file was either in error or out-of-date. The trajectory for C2012 K5 (LINEAR) was incorrect. Other charts with the comet's trajectory close to M 36 were a tip-off.

Edited by Man in a Tub (01/01/13 09:33 AM)


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ronharper
Carpal Tunnel
*****

Reged: 02/14/06

Re: C2012 K5 (LINEAR) new [Re: Man in a Tub]
      #5599005 - 01/01/13 01:11 AM

Weather has done another number on me. Woah up, K5!
Ron


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ianatcn
sage


Reged: 05/26/10

Loc: Hampshire, UK
Success! new [Re: Man in a Tub]
      #5599837 - 01/01/13 03:34 PM

Happy New Year group! After several days of continuous rain here in the South of the UK we have had a clear day. The atmosphere has been washed clean of pollutants and seeing was good.

I went out soon after dark to look for comet LINEAR, optimistically with my 10x50 Fujinon and no luck. Decided that I would try again with my trusty 20x60s and there it was. At that time I could see a nebulous glow with no real detail and best in averted vision.

Later on when the sky was fully dark I swept it up easily in the 10x50. Best held with averted vision but looking lovely in amongst a rich starfield. Next tried the 15x60 Zeiss and could see a well defined coma with some condensation. In the 20x60s with dark adapted eyes I could now see an elongation in the coma. Time for the big guns and out came the Docter 40x80. In these there was a lot to see. The comet was now more like an elongated fan and with a small condensed nucleus held best with averted vision. A lovely object at high power but I switched back to the 10x50 and enjoyed sweeping between the comet and the auriga clusters.

My sky conditions here were good for transparency and in my rural location I have no direct lighting problems, just distant towns to the east and southwest giving cones of skyglow.

Good luck to the rest of you. I am hoping for a few more nights like tonight. A good start to my observing year!

Ian


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norton67
member


Reged: 12/11/12

Loc: Michigan
Re: Success! new [Re: ianatcn]
      #5599893 - 01/01/13 04:06 PM

I am hoping to try tonight myself.

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Mark9473
Postmaster
*****

Reged: 07/21/05

Loc: 51N 4E
Re: Success! new [Re: norton67]
      #5599945 - 01/01/13 04:49 PM

I spotted the comet this evening in my 15x60 binoculars an hour after Moonrise. It was just a faint indeterminate glow, and the overly bright (6th magnitude) star right next to it was really keeping me from getting a good look at it.

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Rich V.
Post Laureate
*****

Reged: 01/02/05

Loc: Lake Tahoe area, Nevada, USA
Re: Success! new [Re: Mark9473]
      #5600517 - 01/01/13 11:10 PM

The clouds/snow we've had for a week cleared out; got a chance to look at the comet tonight before moon rise. It was midway between Beta and Theta Aur. In 16x70s it was a diffuse glow seen directly no more than 6' in diameter. No brightening of nucleus or tail that I could see.

It's well away from the 6th mag. star Mark referred to now; since then the comet has moved approx. 23'!

In the 16F temp, my neck wished I had taken the trouble to set up the Unimount instead of the tall tripod/video head.

Rich


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Patricko
Carpal Tunnel
*****

Reged: 01/30/07

Loc: USA
Re: Success! new [Re: Mark9473]
      #5600520 - 01/01/13 11:13 PM

Got it several minutes ago with 11.75X48mm and 14.9X69mm binoculars fron my intown location. An easy catch indeed and well worth the short hunt to find it. Thank goodness for good binoculars!

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ronharper
Carpal Tunnel
*****

Reged: 02/14/06

Re: Success! new [Re: Patricko]
      #5600582 - 01/02/13 12:22 AM

I first tried with 10x56, which on this night revealed the bright star in M37 steadily. The comet was seen immediately. Comparing with M78, surface brightness is similar, but the comet is about twice as big. I estimated very roughly 10 arcmin size. It looked rather shapeless, but with a concentration of light to to the SW of center, hardly to say a tail to the NE. My 15x60, which revealed M37 as a fine spray of stars, showed scarcely more of the comet, only making the observation easier.
Ron

Edited to say M37 not 36.

Edited by ronharper (01/02/13 12:30 PM)


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Man in a Tub
Postmaster
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Reged: 10/28/08

Loc: Fogpatch, CA
Re: Success! new [Re: ronharper]
      #5600822 - 01/02/13 08:00 AM

I got a decent, neck-cracking view of C/2012 K5 (Linear) around 02:45 PST with my trusty Pentax 20x60 PCF WP II on the Garrett monopod. Seen almost immediately, it was bigger and brighter than expected. Roundish. However, no center brightness was seen. Why? Probably because I was seeing what I can of the center.

I also saw it with my Brunton Eterna 15x51 hand-held and finally with my Fujinon 10x50 FMT-SX on the monopod.

Hope it's clear tomorrow so I can see it next to M 36. Time for the GO Signature 15x70.



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Rich V.
Post Laureate
*****

Reged: 01/02/05

Loc: Lake Tahoe area, Nevada, USA
Re: Success! new [Re: Man in a Tub]
      #5601163 - 01/02/13 12:26 PM

Quote:

Hope it's clear tomorrow so I can see it next to M 36. Time for the GO Signature 15x70.






Yes, seeing the comet in the same 4 FOV with M36 should be a nice sight! The CSC forecast looks good for Thurs. night in my location.

We'll be getting into the action a bit late; viewers in Europe like Mark will see the two much closer together than we will in the US PST zone.

Rich


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Mark9473
Postmaster
*****

Reged: 07/21/05

Loc: 51N 4E
Re: Success! new [Re: Rich V.]
      #5601265 - 01/02/13 01:30 PM

Rich, given the weather forecast over here I'm certain you'll see it much better than me...

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