(IAAC) Re: [Planetary_Nebulae] Outer halo of [NGC] 3242?

Lew Gramer mameteors at yahoo.com
Sat Apr 9 14:03:20 EDT 2005


Hey, Mike! I have seen part of the halo of the "CBS eye" in 20" and 36" scopes,
but others on IAAC (visualdeepsky.org) have also made logs or "probable" logs
of it in smaller apertures as well:
  http://www.visualdeepsky.org/logs/msg03145.html
  http://www.visualdeepsky.org/logs/msg03538.html
etc.

And of course, I and other folks have seen the Eskimo's halo quite well, too!
Did you get a glimpse of that outer halo (the Eskimo's "parka") this time,
Mike? (It's generally noted out as far as about 1.5 arcmin diameter.)
  http://www.visualdeepsky.org/logs/msg00696.html
  http://www.visualdeepsky.org/logs/msg01646.html
  http://www.visualdeepsky.org/logs/msg01708.html
etc.


BTW, as Mike has done in the past - we hope folks will share their observing
logs of these, or any other deep-sky objects with us on the IAAC:

  http://www.visualdeepsky.org/enter-log.html

All observations are welcome, at whatever experience level or aperture. :)

Clear skies!
Lew Gramer


--- Planetary_Nebulae at yahoogroups.com wrote:
>    Date: Sat, 9 Apr 2005 10:06:06 -0400
>    From: "Mike Wirths" <mwirths at superaje.com>
> Subject: outer halo of 3242?
> 
> Hi all,
> 
> Its been ages since I've posted last, I've caught the disease known as
> imaging (high res lunar planetary stuff with my dob), but last night I
> satiated a case of photon deprivation! It was above average transparency and
> poor to average seeing, LM was about 6.3.
>  I had some freinds over to my observatory and we all remarked on the extreme
> colours seen in the Eskimo so I thought why not try the ghost of Jupiter even
> though it was pretty low in the sky at my latitude (45 N).  Since I was using
> a 30" Starmaster with medium power (280-300) the colours were very striking,
> the inner hood was a brilliant powder blue, and the outer hood had a distinct
> reddish cast to it, this was noted a couple other observers. I remembered a
> view I had through the McDonald observatory 82" some years back at TSP the
> same colours were seen then but with much more intensity!
>  When we popped in an OIII filter a haze was noted 2/3rds of the way around
> the nebula and extended out about 1 1/2 to 2 ring diameters. At first we
> thought it might be haze due to moisture on the ep but that was'nt the case
> and the 2ndary was ok too, were we seeing an outer halo? I remember reading
> about a unattached filament quite a distance away from the nebula kinda like
> the case with the cats eye but fainter....
> 
> glad spring is here!
> 
> cheers
> 
> Mike W
> 
> [Non-text portions of this message have been removed]
> 
> 
> ------------------------------------------------------------------------
> Yahoo! Groups Links
> 
> <*> To visit this group on the web, go to:
>     http://groups.yahoo.com/group/Planetary_Nebulae/
> 
> ------------------------------------------------------------------------

Lew Gramer <dedalus at alum.mit.edu>


		
__________________________________ 
Do you Yahoo!? 
Yahoo! Small Business - Try our new resources site!
http://smallbusiness.yahoo.com/resources/


More information about the Netastrocatalog-announce mailing list