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timokarhula
sage


Reged: 01/30/06

Loc: Sweden
Comet 168P/Hergenrother bright with binoculars
      #5456866 - 10/05/12 05:03 PM

Comet Hergenrother has undergone an outburst and is visible now in binoculars. This is my observation from tonight.

2012 Oct 05.78 UT; m1=9.5; Dia=3í; DC=7; 18x50B [Timo Karhula, Virsbo, Sweden]

I first found comet 168P surprisingly bright with 25x100B. Small, condensed and with a 11.5 mag stellar pseudonucleus. Estimated afterwards with Canon 18x50 IS binoculars. No tail visible. My magnitude estimate (9.5) might even be on the conservative side.

/Timo Karhula


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Special Ed
Postmaster
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Reged: 05/18/03

Loc: Greenbrier Co., WV 38N, 80W
Re: Comet 168P/Hergenrother bright with binoculars new [Re: timokarhula]
      #5457554 - 10/06/12 07:53 AM

Timo,

Thanks for the report. I was just reading about Comet Hergenrother in this online S&T article. This should be a good one and well placed for northern observers in Pegasus.


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Tonk
Postmaster
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Reged: 08/19/04

Loc: Leeds, UK, 54N
Re: Comet 168P/Hergenrother bright with binoculars new [Re: Special Ed]
      #5457629 - 10/06/12 09:20 AM

Yes the outburst was reported last week on Yahoo Comets-ml group. I'm preparing to go to my dark site for a few days to image this one now that the moon is backing away from that region. First "bright" comet for 6 months after Comet Garrad faded away in March this year

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Astrodj
professor emeritus
*****

Reged: 08/24/11

Loc: Missouri
Re: Comet 168P/Hergenrother bright with binoculars new [Re: Tonk]
      #5457874 - 10/06/12 12:17 PM

Suh-weeet! Just give me a clear sky...

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Centaur
Vendor
*****

Reged: 07/12/04

Loc: Chicago
Re: Comet 168P/Hergenrother bright with binoculars new [Re: timokarhula]
      #5458047 - 10/06/12 02:41 PM

Iíve created an overhead view of the comet's orbit from north of the ecliptic plane and an ephemeris based on osculating elements from Aldo Vitaglianoís Solex numerical integration program. They can be seen toward the bottom of the page at www.CurtRenz.com/comets

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canukLX90
professor emeritus


Reged: 12/25/08

Loc: B.C. Canada
Re: Comet 168P/Hergenrother bright with binoculars new [Re: timokarhula]
      #5458054 - 10/06/12 02:47 PM

Thanks for the report. I have been imaging the comet for
the last two nights before the moon rises. I'll post the
results once I get some processing time. The subs do show
a short tail and the comet is bright enough to guide on
using my TMB92L.

Cheers

PJ


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timokarhula
sage


Reged: 01/30/06

Loc: Sweden
Re: Comet 168P/Hergenrother bright with binoculars new [Re: canukLX90]
      #5458273 - 10/06/12 06:12 PM

I had a quick glance at comet 168P/Hergenrother before moonrise tonight. With Canon 18x50 binoculars I estimated it as magnitude 9.3, coma diameter 2'.5 and DC=7 (Oct. 6.77 UT). I could also glimpse comet 168P/Hergenrother with hand-held 10x50 binoculars where it was in the same FOV as Alpha Andromedae.

/Timo Karhula


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Special Ed
Postmaster
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Reged: 05/18/03

Loc: Greenbrier Co., WV 38N, 80W
Re: Comet 168P/Hergenrother bright with binoculars new [Re: timokarhula]
      #5458445 - 10/06/12 09:04 PM

Here is a sketch by Jef de Wit showing the current appearance of the comet with a telescope.

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Rich (RLTYS)Moderator
Postmaster
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Reged: 12/18/04

Loc: New York (Long Island)
Re: Comet 168P/Hergenrother bright with binoculars new [Re: Special Ed]
      #5459710 - 10/07/12 06:42 PM Attachment (52 downloads)

Here's an image of Hergenrother I made on the 6th. Based on this image Hergenrother should be close to 9th mag.

Rich (RLTYS)


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Rich (RLTYS)Moderator
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Reged: 12/18/04

Loc: New York (Long Island)
Re: Comet 168P/Hergenrother bright with binoculars new [Re: timokarhula]
      #5459715 - 10/07/12 06:51 PM Attachment (52 downloads)

Here is a widefield image of Hergenrother made on the same night.

Rich (RLTYS)


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Astrodj
professor emeritus
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Reged: 08/24/11

Loc: Missouri
Re: Comet 168P/Hergenrother bright with binoculars new [Re: Rich (RLTYS)]
      #5459756 - 10/07/12 07:35 PM

Nice little debris tail, and nice images. Thanks.

Tonight and tomorrow night it should be close to 5th magnitude Psi Peg.


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Starhunter249
sage


Reged: 06/07/10

Re: Comet 168P/Hergenrother bright with binoculars new [Re: Astrodj]
      #5459888 - 10/07/12 09:25 PM

Finally had somewhat clear skies tonight early evening. Clouds and haze roll through my skies currently in central Illinois and there are pockets of good viewing. I located comet 168 but appears that it has dimmed a bit. I am viewing in a 8 inch reflector but I can still detect it only because I was looking for it. If I had just been star hopping, it would easily have been missed.

Can anyone confirm it's current magnitude? I estimate around mag 12. There are mag 9 stars nearby and appears much dimmer. Mag 6 Hip 136 is just south of it.

I was a little disappointed that it was not as distinguishable as comet Garrard was. The weather just has been so bad this week when it was first reported to be unexpectedly brighter.

Thirty minutes until draconid meteor peak. Haven't seen a meteor since sundown. Maybe get lucky with a sudden sky show.


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canukLX90
professor emeritus


Reged: 12/25/08

Loc: B.C. Canada
Re: Comet 168P/Hergenrother bright with binoculars new [Re: Starhunter249]
      #5460005 - 10/08/12 01:39 AM Attachment (46 downloads)

Just as the moon was rising last night I took this series
of images. The bright star up in the top left hand corner
is HD224907 Pegasus a magnitude 6.6 star. 168/P is 0.4AU
from the earth and 1.4 AU from the sun. The image shows
a bright condensed nucleus, definite coma and a faint tail.

Thanks to all those posting your observations of this fuzz
ball.

Cheers

PJ


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Bill Weir
Carpal Tunnel
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Reged: 06/01/04

Loc: Metchosin (Victoria), Canada
Re: Comet 168P/Hergenrother bright with binoculars new [Re: canukLX90]
      #5460112 - 10/08/12 05:35 AM

OK I'll have to admit I've been asleep at the wheel on this one. I had no idea it was up there. It's fabulous. I was out at the school observatory with my Starmaster planning on busting up some galaxy clusters but to start things off I wanted to look at the "Taffy Galaxies" UGC 12914 and UGC 12915. They are a nice interacting pair. I started the star hop on psi Pegasi and almost immediately it was Whoa, what's that?

At 193X with a 10mm Ethos there was alot of structure to be seen in this comet. Wide fanning tail, very bright condensed core and a dazzling stellar pseudo nucleus. At 320X with a 6mm Ethos I was gobsmacked. It was quite some time before I eventually carried on with my galaxy quest.

Later in the evening some instructors from the school and a couple of visiting university profs wandered up the hill so I showed it to them.

Bill


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Rich (RLTYS)Moderator
Postmaster
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Reged: 12/18/04

Loc: New York (Long Island)
Re: Comet 168P/Hergenrother bright with binoculars new [Re: Starhunter249]
      #5460180 - 10/08/12 07:49 AM

Quote:

Finally had somewhat clear skies tonight early evening. Clouds and haze roll through my skies currently in central Illinois and there are pockets of good viewing. I located comet 168 but appears that it has dimmed a bit. I am viewing in a 8 inch reflector but I can still detect it only because I was looking for it. If I had just been star hopping, it would easily have been missed.

Can anyone confirm it's current magnitude? I estimate around mag 12. There are mag 9 stars nearby and appears much dimmer. Mag 6 Hip 136 is just south of it.

I was a little disappointed that it was not as distinguishable as comet Garrard was. The weather just has been so bad this week when it was first reported to be unexpectedly brighter.

Thirty minutes until draconid meteor peak. Haven't seen a meteor since sundown. Maybe get lucky with a sudden sky show.




According to one bright comet web site, Hergenrother, as of 10/6, was estimated at mag 9.1.

Rich (RLTYS)


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Rich (RLTYS)Moderator
Postmaster
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Reged: 12/18/04

Loc: New York (Long Island)
Re: Comet 168P/Hergenrother bright with binoculars new [Re: timokarhula]
      #5460192 - 10/08/12 08:09 AM Attachment (47 downloads)

Here is another image I made of Hergenrother on the morning of 10/8 with the Slooh T1 scope.

Rich (RLTYS)


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Starhunter249
sage


Reged: 06/07/10

Re: Comet 168P/Hergenrother bright with binoculars new [Re: Rich (RLTYS)]
      #5460332 - 10/08/12 10:13 AM

Quote:

Quote:

Finally had somewhat clear skies tonight early evening. Clouds and haze roll through my skies currently in central Illinois and there are pockets of good viewing. I located comet 168 but appears that it has dimmed a bit. I am viewing in a 8 inch reflector but I can still detect it only because I was looking for it. If I had just been star hopping, it would easily have been missed.

Can anyone confirm it's current magnitude? I estimate around mag 12. There are mag 9 stars nearby and appears much dimmer. Mag 6 Hip 136 is just south of it.

I was a little disappointed that it was not as distinguishable as comet Garrard was. The weather just has been so bad this week when it was first reported to be unexpectedly brighter.

Thirty minutes until draconid meteor peak. Haven't seen a meteor since sundown. Maybe get lucky with a sudden sky show.




According to one bright comet web site, Hergenrother, as of 10/6, was estimated at mag 9.1.

Rich (RLTYS)




After the waves of high cirrus clouds left later in the night, comet 168p in Pegasus seemed a lot brighter than my earlier observation. Pegasus was also closer to zenith. Perhaps unseen haze in between clouds had lessen it's magnitude. It's nucleus, small and dim, along with a coma, and a short tail were a white to grayish in color. Garrard I remember being more greenish.

I am most amazed by how fast this comet is moving. Just in a few hours it had traversed 4 to 5 arc minutes. I viewed it right after sundown til about 8:15. High hazy clouds had rolled in, so I went inside to post my observation on cloudy nights, unsure about its brightness. By 10 PM, the clouds were gone and had a perfect clear sky. It was much brighter than before but the comet's position had changed so much. It was side by side with a star north of the original position I had observed a few hours ago.

Hope for clear skies again tonight so I can watch it move inside this large constellation.


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Achernar
Postmaster
*****

Reged: 02/25/06

Loc: Mobile, Alabama, USA
Re: Comet 168P/Hergenrother bright with binoculars new [Re: timokarhula]
      #5461313 - 10/08/12 09:40 PM

I just picked it up with my 15-inch from the driveway in the middle of a medium sized city. It has to be between ninth and tenth magnitude for me to find it so easily with a street light about 25 or 30 meters from me. it was quite small at 227X, but there is definitley a starlike inner coma and an elongation that suggests the beginnings of a tail.

Taras


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SabiaJD
scholastic sledgehammer


Reged: 02/20/05

Loc: Clarks Summit, PA
Re: Comet 168P/Hergenrother bright with binoculars [Re: Achernar]
      #5461618 - 10/09/12 05:45 AM Attachment (32 downloads)

Skies cleared for a few hours allowing my first view of 168P on Saturday October 6, 2012 EDT.

Comet was bright with a elongated coma, and bright, larger inner condensation as seen at 103x and 206x with RC20 f/8.1 scope at TGCO.

Attached the STL-1001E camera to the scope as I had plan to do this evening. This was my first target before increasing clouds.

Stacked image of 20 exposures of 1 minute each.


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Mike Lynch
sage
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Reged: 04/07/06

Re: Comet 168P/Hergenrother bright with binoculars [Re: SabiaJD]
      #5461967 - 10/09/12 11:53 AM

Has this comet dimmed any in the last couple of days?

I see that some of you have glimpsed it with binoculars.... In my back yard (with a fair number of lights visible), I tried 15x70's, 20x80's, and my 80mm spotter and saw no evidence of it. This was last night, Oct. 8.

Perhaps light pollution was my problem..?

Mike Lynch
Frankfort KY USA


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