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C/2004 F4 Bradfield

  • BrianOHalloran
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C/2004 F4 Bradfield was created by BrianOHalloran

Hi all.

Those of you following Comet Bradfield with SOHO may like to note that the comet is much brighter than expected - somewhere around mag -2 (indeed, it may have been a LOT brighter earlier today)!! The C3 coronograph starts to suffer from blooming (photon overflow onto nearby pixels) when objects get above mag -1 or so - and that's what's currently happening. The comet's magnitude is no doubt boosted from backscattering as we pass through its orbital plane, but hopefully may be still a very bright object come Thursday/Friday when it emerges from conjunction.

Clear skies.

Brian
18 years 11 months ago #2590

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Replied by BrianOHalloran on topic Re: C/2004 F4 Bradfield

Jon Shanklin picked up C/2004 F4 this morning at mag 2.6.

Brian
18 years 11 months ago #2635

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Replied by albertw on topic Re: C/2004 F4 Bradfield

Another image from yesterday morning



David
Worth Hill Observatory
Dorset U.K.
www.dstrange.freeserve.co.uk


Cheers,
~Al
Albert White MSc FRAS
Chairperson, International Dark Sky Association - Irish Section
www.darksky.ie/
18 years 11 months ago #2654

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Replied by ayiomamitis on topic Re: C/2004 F4 Bradfield

Dear List,

It seems the comet has survived its passage around the sun which is great news for us in the northern hemisphere.

It should a very exciting early May!

Anthony.
Anthony Ayiomamitis
Athens, Greece
www.perseus.gr
18 years 11 months ago #2664

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Replied by Seanie_Morris on topic Re: C/2004 F4 Bradfield

I tried to look for it after 3:30am this morning when I got home from work. The sky was beautifully clear - I saw an Iridium Flare, 2 bright Lyrids, a couple of satelites, and the entire Milky Way arm as clear as you would see it in a short exposure photograph - no exaggeration - but I couldn't confirm I saw THE comet... I THOUGHT I could, but clarity was not great through my tired eyes as it seemed to be quite near the horizon.

Was I looking in the right direction (towards sunrise), or just making my eyes almost see what I wanted to see? :roll:

Seanie.
Midlands Astronomy Club.
Radio Presenter (Midlands 103), Space Enthusiast, Astronomy Outreach Co-ordinator.
Former IFAS Chairperson and Secretary.
18 years 11 months ago #2669

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Replied by albertw on topic Re: C/2004 F4 Bradfield

I've uploaded a finder chart for Bradfield for the enxt couple of weeks to
www.irishastronomy.org/user_resources/fi...-bradfield-tabur.pdf

Also in there is comet Tabur (C/2003 T3). I've heard nothing about it on newsgroups, probably because its at mag 8.5, but it is listed in the bright comet list[1].

Cheers,
~Al

[1] cfa-www.harvard.edu/iau/Ephemerides/Comets/Soft03Cmt.txt where xephem gets it data from, probably the same for skymap et. al.
Albert White MSc FRAS
Chairperson, International Dark Sky Association - Irish Section
www.darksky.ie/
18 years 11 months ago #2672

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Replied by Seanie_Morris on topic Re: C/2004 F4 Bradfield

I've also found this link to space.com about the path and expectations of the comet Bradfield:

www.space.com/spacewatch/comet_bradfield_guide_040422.html

Basically, it will not be as bright or as easy to spot, but you should be able to find it none-the-less in binoculars.

Seanie.
Midlands Astronomy Club.
Radio Presenter (Midlands 103), Space Enthusiast, Astronomy Outreach Co-ordinator.
Former IFAS Chairperson and Secretary.
18 years 11 months ago #2674

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Replied by PMU on topic Re: C/2004 F4 Bradfield

thanks for the chart al
i found the comet at 4.00am this morning,below M31.Starlike nucleus and
6 or 7 degree tail.visible in 8x40 binos but not with the naked eye because of the twilight.disapeared by 4.20am.
pat
18 years 10 months ago #2681

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