
New Naked Eye Comet - 17/P Holmes
- JohnMurphy
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Replied by JohnMurphy on topic Re: New Naked Eye Comet - 17/P Holmes
Looks like its still good under good conditions.
John Murphy
Irish Astronomical Society
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- phoenix
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Replied by phoenix on topic Re: New Naked Eye Comet - 17/P Holmes
Looks like its still good under good conditions.
With a near full moon I could not even get it with the finder scope. I had to plug in the ra dec in autostar and even then I was running 2 minute subframes binned at 2x2 compared to 30 seconds 10 days ago. This is rapidly becoming an imaging only object.
16" ODK (incoming), Mesu Mount 200, APM TMB 80mm, SXV H16, SXV H9
J16 An Carraig Observatory
ancarraigobservatory.co.uk/
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- Cygnus
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Replied by Cygnus on topic Re: New Naked Eye Comet - 17/P Holmes
And in visual, with binoculars i can see it faintly but have to move my scoop on bright background stars for an estimate position and can't see Holmes at all in the finder of my photo camera anymore so i have to take a shot and then look if i got it, then adjust my scoop again in an estimated direction etc., so it becomes a trial and error situation.
The photos i did take were almost over exposed by this blue haze of indirect moonlight, and although i can see the comet if i try to enhance the picture only a very grainy and dark comet is left.
not usable for a nice follow up. Who pulls the plug?
On the other hand I cannot complain as a first scoop owner for 2.5 months i had a very exiting time with the moon, orion and Holmes.
LXD75 6"Newton Nikon D70
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- JohnMurphy
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- Super Giant
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Replied by JohnMurphy on topic Re: New Naked Eye Comet - 17/P Holmes
If youre worried about the rules check this link if you haven't already.
www.irishastronomy.org/boards/viewtopic.php?t=3735
John Murphy
Irish Astronomical Society
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- daveg
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Replied by daveg on topic Re: New Naked Eye Comet - 17/P Holmes
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- paulevans
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Replied by paulevans on topic Re: New Naked Eye Comet - 17/P Holmes
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- eansbro
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Replied by eansbro on topic Re: New Naked Eye Comet - 17/P Holmes
www.astroshack.net/images/solarsys/CometHolmes.jpg
Taken with 0.4m SC Telescope at f/5 using an Apogee AP7p CCD camera.
Cropped image of Comet Holmes taken on November 7, 2007. The seeing and transparency were good which resulted in imaging dust in the tail and in the coma. The images are 30 minute LRGB total exposures were the Luminance data comes from an I or IR filter. Exposure times were:
I = 30 x 30 seconds. B, V, R = 10 x 30 seconds each filter.
Most detail are shown using IR for the Luminance than a straight full spectrum Luminance. Looking carefully, one can make out subtle detail in the image. The image combines the colour composite while using an FFT high band pass filter which brings out detail using that technique. The telescope was tracked on the comet and images were stacked on the nucleus therefore you can see some separation in the field stars. It seems that the comet is slowly turning from coming almost straight on (or away) from the observer.
Image processing with Mira Pro 7.5
Eamonn A
Kingsland Observatory MPC J62
www.kingslandobservatory.com
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- mjs
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Replied by mjs on topic Re: New Naked Eye Comet - 17/P Holmes
Saw it quite easily last night with the naked eye before the moon rose. Was surprised to see the large hazy patch and had just about convinced myself that it could not be that bright but the binoculars confirmed it.
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- Frank Ryan
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Replied by Frank Ryan on topic Re: New Naked Eye Comet - 17/P Holmes
the skies cleared tonight for around a half an hour and I have to say
it was quite steady and transparent seeing.
I was very surprised and pleased to be able to still clearly see Homes naked eye!
I took a quick snap with the Canon 350D and the 18-55mm lens.
I was on the points of getting the dob out when the clouds rolled in
super fast.
Shannonside Astronomy Club __________________________________________
Meade ETX-125PE, Bresser 10 x 50 Binos & Me Peepers
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- paulevans
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Replied by paulevans on topic Re: New Naked Eye Comet - 17/P Holmes
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- wellbuttie
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Replied by wellbuttie on topic Re: New Naked Eye Comet - 17/P Holmes
Canon 350D, Tamron 90mm F2.8 lens at F2.8, ISO1600, a stack of 22 x 2 minute exposures...... using an Astronomik CLS (light pollution) EOS insert Filter.
A larger resolution version is available on the Flickr site.
.........
"Technology is a way of organising the universe so that man doesn't have to experience it."
steviestargazer.ivisionireland.com
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photo.ivisionireland.com
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- Seanie_Morris
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Replied by Seanie_Morris on topic Re: New Naked Eye Comet - 17/P Holmes

Seanie.
Radio Presenter (Midlands 103), Space Enthusiast, Astronomy Outreach Co-ordinator.
Former IFAS Chairperson and Secretary.
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- wellbuttie
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Replied by wellbuttie on topic Re: New Naked Eye Comet - 17/P Holmes
The Raw frames looked Blue, due to the CLS filter, however, once the images were stacked, the background was very black, and high in contrast.
Very little processing was done in photoshop on the stacked image, I just increased the saturation a bit and then cropped etc.
This is a link to the 1024 x 768 version as requested...
farm3.static.flickr.com/2075/2082896743_d2a9be399d_o.jpg
Best O luck
.........
"Technology is a way of organising the universe so that man doesn't have to experience it."
steviestargazer.ivisionireland.com
www.deiseastronomy.com
photo.ivisionireland.com
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- Seanie_Morris
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Replied by Seanie_Morris on topic Re: New Naked Eye Comet - 17/P Holmes
This is a link to the 1024 x 768 version as requested...
farm3.static.flickr.com/2075/2082896743_d2a9be399d_o.jpg
Loving it Steve. Almost flawless. The 'almost' bit refers to the largest stars showing some 'nebulosity' around them, probably just an artifact from some of the frames not 100% in allignment when they were stacked. But they don't take away from a beautiful image.
Spot on.
Seanie
P.S. does it look like there's a tiny cluster left-of-centre under Homes tail?

Radio Presenter (Midlands 103), Space Enthusiast, Astronomy Outreach Co-ordinator.
Former IFAS Chairperson and Secretary.
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- dave_lillis
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Replied by dave_lillis on topic Re: New Naked Eye Comet - 17/P Holmes
Chairman. Shannonside Astronomy Club (Limerick)
Carrying around my 20" obsession is going to kill me,
but what a way to go.

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- mjs
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Replied by mjs on topic Re: New Naked Eye Comet - 17/P Holmes
See todays APOD with NGC 1245Seanie
P.S. does it look like there's a tiny cluster left-of-centre under Homes tail?
antwrp.gsfc.nasa.gov/apod/ap071205.html
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- Seanie_Morris
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Replied by Seanie_Morris on topic Re: New Naked Eye Comet - 17/P Holmes
See todays APOD with NGC 1245Seanie
P.S. does it look like there's a tiny cluster left-of-centre under Homes tail?
antwrp.gsfc.nasa.gov/apod/ap071205.html
Wow, answers my question, and makes the answer very dramatic as well.

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Former IFAS Chairperson and Secretary.
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- paulevans
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Replied by paulevans on topic Re: New Naked Eye Comet - 17/P Holmes
Holmes was clearly visible to the naked eye so I got a good stack of wide shots with the 50mm lens shown here cropped to various degrees.....
Wide
Medium
And closeup - pushing it a bit this one!
Got the little blue cluster NGC 1245 too!
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- paulevans
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Replied by paulevans on topic Re: New Naked Eye Comet - 17/P Holmes
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- dave_lillis
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Replied by dave_lillis on topic Re: New Naked Eye Comet - 17/P Holmes
Chairman. Shannonside Astronomy Club (Limerick)
Carrying around my 20" obsession is going to kill me,
but what a way to go.

+ 12"LX200, MK67, Meade2045, 4"refractor
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- voyager
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Replied by voyager on topic Re: New Naked Eye Comet - 17/P Holmes
Bart.
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- pj30something
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Replied by pj30something on topic Re: New Naked Eye Comet - 17/P Holmes
My next scope is going to be a Vixen VMC200L Catadioptric OTA
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- dave_lillis
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Replied by dave_lillis on topic Re: New Naked Eye Comet - 17/P Holmes
Chairman. Shannonside Astronomy Club (Limerick)
Carrying around my 20" obsession is going to kill me,
but what a way to go.

+ 12"LX200, MK67, Meade2045, 4"refractor
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- Seanie_Morris
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Replied by Seanie_Morris on topic Re: New Naked Eye Comet - 17/P Holmes
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- Moydrum
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Replied by Moydrum on topic Holmes
Frank and I had a good look from my back garden and we could clearly see Holmes with the naked eye on Tuesday, 11th December, it was a big faint glow in the sky, its outline was hard to make out but it was definitely there.
Early evening 1800 Friday 14th December 2007. Partly cloudy. Clear view of Holmes comet in binoculars. A very faint hazy blob above and to the right of Mirfak. About the size of a full moon.
Paddy Doyle
Athlone
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