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(IAAC) Re Fwd: McNeil's Nebula with a 16-inch [New amateur discovery]
David Weaver points out the (partially) labeled discovery image
of the new nebula on McNeil's own Website below. While browsing
that Website, I also happened on the following very interesting
comment in the weblog there!
From: msussman23@yahoo.com (Thu Feb 12 14:15:09 2004)
Hey - congratulations on the new nebula! As a fellow
amateur, I can only guess how enthralling this must be.
I was thinking - if the object is really some kind of
protostar, then it should have showed up previously on
deep infrared images. So, I checked out the 2MASS
website, and you can see McNeil's nebula on one of
their older images! Look:
http://www.ipac.caltech.edu/2mass/gallery/m78atlas.jpg
Very intriguing to compare the distinctive views of this area
of the sky at different wavelengths.
Clear skies!
Lew Gramer
-----Original Message-----
From: David S. Weaver [mailto:astro@theweave.cc]
Sent: Tuesday, February 17, 2004 9:47 PM
To: Lew Gramer
Cc: netastrocatalog-announce@visualdeepsky.org
Subject: Re: [NHAS] Fwd: McNeil's Nebula with a 16-inch [New amateur
discovery]
Here is the link to the discover's site and image:
http://wkaa.net/gallery/mcneil/mcneilnebulalum90labeled
I managed to get some short 2 minute exposures of it with my C11, but I
couldn't find a guide star with that focal length to do a long exposure.
I
might be able to get one with a focal reducer. Of course I could just
image it with the FS-102, and I may still do that if we ever get some
more
clear skies. I should have gone after it last night when I had the
FS-102 out.
Clear skies please,
-Dave
At 03:29 PM 2/17/2004 -0500, Lew Gramer wrote:
>Roger Greenwood asks:
> > Which part is the new nebula, Lew?
> > Is it where the 2 lines intersect at the bottom?
>
>Yep, Roger, it's the place marked by the two "tick marks", to
>the lower right (southwest) of the image, about 10' below the
>mass of dark nebulosity that abuts NGC 2064 in Fera's image.
>
>Here's a nice photo of that region from the DSS, that closely
>matches the finder charts below - and clearly shows that this
>newly discovered object was NOT apparent during the Survey:
>
>http://archive.stsci.edu/cgi-bin/dss_search?v=poss2ukstu&r=05+46+46.70&
d
>=%2B00+00+50.0&e=J2000&h=30.0&w=30&f=gif&c=none&fov=NONE&v3=
>
>And by the way, a quick Web search today revealed that this
>object has now been reported visually in scopes as small as
>10" - though that was in dark, Southwestern skies.
>
>Clear skies, and happy hunting!
>Lew
>
>
> > -----Original Message-----
> > From: owner-nhas@lists.mv.net
> > [mailto:owner-nhas@lists.mv.net] On Behalf Of Roger Greenwood
> > Sent: Tuesday, February 17, 2004 2:55 PM
> > To: NHAS CHAT
> > Cc: Lew Gramer
> > Subject: Re: [NHAS] Fwd: McNeil's Nebula with a 16-inch [New
> > amateur discovery]
> >
> >
> > Lew:
> >
> > Which part is the new nebula?
> > Is it where the 2 lines intersect at the bottom?
> > I'd love to get this one! This is very exciting!!
> >
> > -Roger Greenwood
> >
> > On Feb 17, 2004, at 2:36 PM, Lew Gramer wrote:
> >
> > > Just a quick note: I've been somewhat remiss in forwarding any
> > > of the recent BLIZZARD of postings on "McNeil's Nebula"... This
> > > is a bit of variable nebulosity, recently discovered by amateur
> > > Jay McNeil with a small amateur scope and CCD, in the same field
> > > of view with bright reflection nebula M78, in Orion!
> > >
> > > And best of all, there are now several confirmations that this
> > > exciting curiosity is accessible to VISUAL observers also, in
> > > mid- to larger-sized amateur scopes. Below are links to a pair
> > > of fine finder photos, from well-known amateur Tom Polakis:
> > >
> > >
http://www.psiaz.com/polakis/deepsky/mcneils_finder_chart_small.jpg
> > >
> > > http://www.psiaz.com/polakis/deepsky/mcneils_finder_chart.jpg
> > >
> > > I'll be giving this one a try the next time I'm out, for sure!
> > >
> > >
> > > Note: Forwarded without permission of the authors.
> > >
> > > Clear skies!
> > > Lew Gramer
> > >
> > >
> > > -----Original Message-----
> > > From: Alan Whitman <...>
> > > To: <amastro...>
> > > Cc: <rascals....>; <okanaganastronomy...>
> > > Sent: Friday, February 13, 2004 2:47 AM
> > > Subject: [RASCals] McNeil's Nebula with a 16-inch
> > >
> > >
> > >> I put my 16-inch back into service tonight after months of just
> > > plinking
> > >> with 8-inch scopes, to hunt for Jay McNeil's discovery. At 152x
(a
> > >> 12mm
> > >> Radian eyepiece with a 24' field of view) I had repeated
> > glimpses of
> > >> McNeil's Nebula. I only saw one star of the adjacent pair
> > and the star
> > > was
> > >> tougher than the nebula. Many of these images that we have been
> > > directed to
> > >> show two small nebulosities (both Herbig-Haro objects?)
immediately
> > > south
> > >> of Jay's nebula. I could see the brighter and more southerly one,
> > > located
> > >> about 6' SSW of McNeil's Nebula, and it was rather easier
> > to see than
> > >> McNeil's Nebula.
> > >>
> > >> I didn't try higher powers because when McNeil's Nebula
> > was centred in
> > > the
> > >> 24' field of view of the 12mm Radian there were barely enough
faint
> > > guide
> > >> stars visible to orientate myself and I didn't think that the 8mm
> > > Radian
> > >> with only a 16' field of view would show enough stars in that
> > > dust-obscured
> > >> area to be able to navigate. (And Orion was about to enter
> > my wife's
> > > damn
> > >> birch trees which most things do shortly after crossing
> > the meridian.)
> > >>
> > >> It was an enjoyable chase. This was also my first view of
> > NGCs 2071
> > >> and
> > >> 2064 since I usually avoid reflection nebulae. I have to gently
> > > disagree
> > >> with Tom Polakis who said: "If your scope will show NGC
> > 2064, it will
> > >> probably also show the new nebula." NGC 2064 is considerably
easier
> > > than
> > >> McNeil's Nebula.
> > >>
> > >> Best,
> > >>
> > >> Alan Whitman
> > >>
> >
----------------------------------------------------------------------
> > >> Tom Polakis wrote:
> > >>
> > >>> Date: Wed, 11 Feb 2004 22:19:22
> > >>> From: Tom Polakis <...>
> > >>> Subject: Finder Chart for McNeil's Nebula
> > >>> I have thrown together a finder chart for McNeil's Nebula
> > in M78. If
> > > your
> > >>> scope will show NGC 2064, it will probably also show the
> > new nebula.
> > > The
> > >>> Web-sized chart is at:
> > >>>
> > http://www.psiaz.com/polakis/deepsky/mcneils_finder_chart_smal
>l.jpg
> >>> And if you want it to print out okay, I have resampled the image
to
> >>> 8.5x11 at 200dpi. You can download this file, and print it from
> >>> graphics viewing software.
> >>>
> >>> http://www.psiaz.com/polakis/deepsky/mcneils_finder_chart.jpg
> >>>
> >>> I am using Bob Fera's recent image with his permission. It is
>rotated
> > so
> >>> north is up. Finding M78 is left as an exercise for the reader.
> >>>
> >>> Tom
> >
> >
> >
>
>
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