Machholz again (2005 Jan 05)

A roughly processed image grabbed before the clouds came in tonight.
I've got a few more to add to the stack later so the tail should come
out with a bit of massaging.

http://www.digitalsky.org.uk/comets/...-05_18h44m.jpg

As a matter of interest, the ion tail is quite large - over 10 degrees
in size by my reckoning. It's not possible to bring a pretty image of
the full tail up using my images from last night - they fall too close
to the noise level in the images. However, if you will excuse the
vulgar presentation, here's the 10+ degree tail...

http://www.digitalsky.org.uk/comets/...z/longtail.jpg

--
Pete
http://www.digitalsky.org.uk
Global Projects - http://www.globalobservers.net

A roughly processed image grabbed before the clouds came in tonight.

Pete

You really do live in The Twiglett Zone ;-)

I've not seen a star from here in the last couple of days nothing but cloud
:-(

Great pictures as usual!!

Damian

--
Damian Burrin
UKRA 1159 Level 2 RSO
EARS 1115
http://www.ukrocketry.com
http://www.larf-rocketry.co.uk

email
email
email
"Pete Lawrence" wrote in message
...
A roughly processed image grabbed before the clouds came in tonight.
I've got a few more to add to the stack later so the tail should come
out with a bit of massaging.

http://www.digitalsky.org.uk/comets/...-05_18h44m.jpg

As a matter of interest, the ion tail is quite large - over 10 degrees
in size by my reckoning. It's not possible to bring a pretty image of
the full tail up using my images from last night - they fall too close
to the noise level in the images. However, if you will excuse the
vulgar presentation, here's the 10+ degree tail...

http://www.digitalsky.org.uk/comets/...z/longtail.jpg

--
Pete
http://www.digitalsky.org.uk
Global Projects - http://www.globalobservers.net

Pete Lawrence nous a écrit :

A roughly processed image grabbed before the clouds came in tonight.
I've got a few more to add to the stack later so the tail should come
out with a bit of massaging.

http://www.digitalsky.org.uk/comets/...-05_18h44m.jpg

Pete, where do you live ?
You always seem to have a nice sky in your Great Britain to take fine
pictures, and here it's clouds and rain
Anyway I could do an image two days ago, but unfortunately my polar
alignment was less than perfect.
The result is here :
http://images.ciel.free.fr/Images_ds...olz_200m_s.jpg
and here http://images.ciel.free.fr/Images_ds...olz_18mm_s.jpg
I must say that your pictures are much better than mine.

As a matter of interest, the ion tail is quite large - over 10 degrees
in size by my reckoning. It's not possible to bring a pretty image of
the full tail up using my images from last night - they fall too close
to the noise level in the images. However, if you will excuse the
vulgar presentation, here's the 10+ degree tail...

I excuse the presentation... Very interesting picture. Indeed the ion
tail is very long, and what's surprising is that it is more visible than
the gas tail.

--
Norbert. (no X for the answer)
======================================
knowing the universe - stellar and galaxies evolution
http://nrumiano.free.fr
images of the sky http://images.ciel.free.fr
======================================

On Wed, 05 Jan 2005 20:12:09 GMT, "Damian Burrin"
wrote:

You really do live in The Twiglett Zone ;-)

I wish - I like Twigletts (not so much the curry flavour ones though
;-) )

I've not seen a star from here in the last couple of days nothing but cloud
:-(

Selsey is constantly ablaze with the danmed things :-)

Actually, it's cloudy now and pouring down outside.

Great pictures as usual!!

Thanks Damian.

--
Pete
http://www.digitalsky.org.uk
Global Projects - http://www.globalobservers.net

On Wed, 5 Jan 2005 21:19:21 +0100, "Norbert"
wrote:

Pete, where do you live ?
You always seem to have a nice sky in your Great Britain to take fine
pictures, and here it's clouds and rain

Right on the south coast. I have sea to the south, south-east and
south-west of me. I believe it and the surrounding geography helps
give me a few clear spots from time to time. There are loads of
lettuce growers to the north of Selsey. I guess they know that they
will get good bouts of sunshine during the day down here too.

Anyway I could do an image two days ago, but unfortunately my polar
alignment was less than perfect.
The result is here :
http://images.ciel.free.fr/Images_ds...olz_200m_s.jpg

That's nice - shows the tail well.

and here http://images.ciel.free.fr/Images_ds...olz_18mm_s.jpg

This one looks a tad out of focus. I know that result well but, of
course, you never get to see mine ;-)

As a matter of interest, the ion tail is quite large - over 10 degrees
in size by my reckoning. It's not possible to bring a pretty image of
the full tail up using my images from last night - they fall too close
to the noise level in the images. However, if you will excuse the
vulgar presentation, here's the 10+ degree tail...

I excuse the presentation... Very interesting picture. Indeed the ion
tail is very long, and what's surprising is that it is more visible than
the gas tail.

I think that the ion tail and gas tail are the same thing Norbert (the
ion tail is sometimes called the gas tail). You mean the dust tail I
think. I believe the reason for this is simply line of sight. We're
looking down the dust tail but perpendicular to the ion tail. Hence
the ion tail appears long and thin, while the dust tail appears short
and stubby.

--
Pete
http://www.digitalsky.org.uk
Global Projects - http://www.globalobservers.net

On Wed, 05 Jan 2005 19:43:53 +0000, Pete Lawrence
wrote:

Here's the update image from tonight's session (grabbed just before
the clouds rolled in and the rain started to fall).

http://www.digitalsky.org.uk/comets/...5_18h44m-2.jpg

Just like last night's really, but with less distance between the
Pleiades and the comet.

--
Pete
http://www.digitalsky.org.uk
Global Projects - http://www.globalobservers.net

Great images Pete - quite amazing one of the length of the tail!! And
Norbert, I would be quite happy to achieve a picture like yours
too...!

Had the best view yet of the comet from home just now, sky having
cleared after torrential rain in the late afternoon here. Transparency
was good, and for the first time I thought I could glimpse the
beginning of the tail in 10x50 bins. More a fuzziness of the
hyades-facing edge of the comet rather than a long and graceful tail
like your pictures fellers!

Should be a fine sight in a coupla nights when it's in the same
binocular field as the Pleiades. How close will the approach be?

Paul
Leigh
Lancs

Yup!

Got it in my cheap crap 13x70 binoculars just now. Actually maybe they're
not that crap; I just can't hold them still enough and there's too many
bright outdoor lights on the landings of my flats that keep dazzling me.

It was bigger and blobbier than I expected it to be! But I couldn't see
any tail though, but probably because of _extreme_ light pollution. As I
say, bright balcony lights blazing 3 metres from one is not conducive!

I managed to see the nebula in Orion's sword for the first time ever
in binoculars too, which felt good.

Maybe if they were on a tripod and at not quite such a horribly neck-breaking
angle, I'd be able to see a lot more!


Martin
--
M.A.Poyser Tel.: 07967 110890
Manchester, U.K. http://www.fleetie.demon.co.uk

Saw it tonight from a dark north-east Scottish viewpoint (SE of Aboyne)
Thanks for the great pics ! and for alerting me to it

Fred

"Norbert" wrote in message
...
Pete Lawrence nous a écrit :

A roughly processed image grabbed before the clouds came in tonight.
I've got a few more to add to the stack later so the tail should come
out with a bit of massaging.

http://www.digitalsky.org.uk/comets/...-05_18h44m.jpg

Pete, where do you live ?
You always seem to have a nice sky in your Great Britain to take fine
pictures, and here it's clouds and rain
Anyway I could do an image two days ago, but unfortunately my polar
alignment was less than perfect.
The result is here :
http://images.ciel.free.fr/Images_ds...olz_200m_s.jpg
and here http://images.ciel.free.fr/Images_ds...olz_18mm_s.jpg
I must say that your pictures are much better than mine.

As a matter of interest, the ion tail is quite large - over 10 degrees
in size by my reckoning. It's not possible to bring a pretty image of
the full tail up using my images from last night - they fall too close
to the noise level in the images. However, if you will excuse the
vulgar presentation, here's the 10+ degree tail...

I excuse the presentation... Very interesting picture. Indeed the ion
tail is very long, and what's surprising is that it is more visible than
the gas tail.

--
Norbert. (no X for the answer)
======================================
knowing the universe - stellar and galaxies evolution
http://nrumiano.free.fr
images of the sky http://images.ciel.free.fr
======================================

Pete Lawrence nous a écrit :

On Wed, 5 Jan 2005 21:19:21 +0100, "Norbert"
wrote:

Pete, where do you live ?
You always seem to have a nice sky in your Great Britain to take fine
pictures, and here it's clouds and rain

Right on the south coast.

OK, I move asap )

I excuse the presentation... Very interesting picture. Indeed the ion
tail is very long, and what's surprising is that it is more visible
than the gas tail.

I think that the ion tail and gas tail are the same thing Norbert (the
ion tail is sometimes called the gas tail). You mean the dust tail I
think.

Yes, I was talking about the dust tail. Thank you for the correction.

I believe the reason for this is simply line of sight. We're
looking down the dust tail but perpendicular to the ion tail. Hence
the ion tail appears long and thin, while the dust tail appears short
and stubby.

This seems as a good and simple explanation. Thanks Pete.

--
Norbert. (no X for the answer)
======================================
knowing the universe - stellar and galaxies evolution
http://nrumiano.free.fr
images of the sky http://images.ciel.free.fr
======================================