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A New Comet In Cassiopeia!

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Author Topic: A New Comet In Cassiopeia!  (Read 1098 times)
martinastro
Martin Mc Kenna
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« on: April 06, 2009, 03:42:45 pm »

I have been studying reports since early this morning on the comets mailing list and the BAA about a new object at mag +10 in Cassiopeia in the northern circumpolar sky. The new object has not been designated yet but is suspected to be a comet. I cannot find any other info yet at this early stage but it certainly looks interesting to hunt down. It was discovered by SWAN. Waiting for further info so this is just a quick heads up.  Smiley
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Tyler
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« Reply #1 on: April 06, 2009, 09:28:13 pm »

Thanks for the news Martin! Circumpolar is good to know too! Keep us updated.
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Big Dipper
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« Reply #2 on: April 07, 2009, 12:46:16 am »

Yes, that's news to me too. Thanks for the 'heads up'.

« Last Edit: April 07, 2009, 11:50:41 pm by Big Dipper » Report Spam   Logged

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Andy
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« Reply #3 on: April 07, 2009, 11:12:38 am »

Guys,

This 'object' appeared on the Minor Planet Center NEO confirmation page yesterday.  Myself and Carl imaged this last night and I have submitted data to the MPC to hopefully assist in the confirmation and designation process.  From my measurements, it clearly is a comet, I do think mag +10 is a bit optimistic, it is currently about mag +12(ish).  It is currently listed as 'SWAN09' therefore I assume this will be C/2009 F? (SWAN) when the MPC designate it hopefully today.  The problem of course will be that cassiopeia is approaching lower culmination at the prime observing hours.

Anyway there is a big bright coma surrounding this one and its fairly speeding along (approx 3"/min currently)
Hopefully it will be designated today I will let you know as soon as I do.
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Regards and Clear Skies,

Dave.
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martinastro
Martin Mc Kenna
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« Reply #4 on: April 07, 2009, 02:41:17 pm »

Thanks Dave and nice job following this guy up  Wink

Got some info, yesterday it was designated G1 but today it's known as C/2009 F6 SWAN. It has just been observed at visual m1 8.1 dia: 7' D.C:5 using 25x100mm binos.
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davegrennan
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« Reply #5 on: April 07, 2009, 03:21:11 pm »

...and here's the discovery MPEC

http://www.cfa.harvard.edu/mpec/K09/K09G21.html
« Last Edit: April 07, 2009, 03:24:12 pm by davegrennan » Report Spam   Logged

Regards and Clear Skies,

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John9929
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« Reply #6 on: April 07, 2009, 03:57:03 pm »

Well done Carl and Dave, would love to see your image!
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John9929.
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« Reply #7 on: April 07, 2009, 07:35:27 pm »

Again and again it happens to me - I haven't been onliine for a few days - and a new comet arrives  Grin

Very nice news! Unfortunately, strong moonlight & cirrus will prevent me from viewing it tonight but I hope to see it very soon (if it will stay at 8mag).  Smiley

Meanwhile, C/2009E1 is currently at 7.5mag.

Who wished to have a new bright northern comet? - here it is!!  Wink Wink Wink
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Roman White
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« Reply #8 on: April 07, 2009, 07:38:33 pm »

I still cannot understand: is it F6 or G1?
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martinastro
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« Reply #9 on: April 07, 2009, 07:58:06 pm »

I think it's F6 now Roman.

Thanks for the link Dave.
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davegrennan
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« Reply #10 on: April 07, 2009, 10:49:36 pm »

Hi Guys here's a quick process taken from a couple of Carl's frames.  Showing F6 pre-designation.  Only 3 short frames, but it does show the coma nicely.

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Regards and Clear Skies,

Dave.
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martinastro
Martin Mc Kenna
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« Reply #11 on: April 07, 2009, 11:06:28 pm »

Wonderful image Dave!!, great to see the first good image of this comet taken from Ireland. Looks like a lovely classic coma. Thanks very much for sharing it and well done again with the follow up. I heard it has now been designated C/2009 (Yi-SWAN) according to the Eph.
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davegrennan
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« Reply #12 on: April 07, 2009, 11:24:50 pm »

Here's a quick chart guys;

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Regards and Clear Skies,

Dave.
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martinastro
Martin Mc Kenna
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« Reply #13 on: April 07, 2009, 11:34:55 pm »

Good man Dave, that's extremely helpful. Thanks a million. Congrats also to Carl for the confirmation work. You guys make a great team! Keep hunting.
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Roman White
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« Reply #14 on: April 08, 2009, 01:56:41 pm »

Thanks for the chart, Dave

Oh, I smell comet hunting on this weekend when the Moon will go away and the sky must be clear...  Roll Eyes
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