Re: (IAAC) Obj: NGC 604 - Inst: 200mm Newtonian
Aren't there actually mapped features of the Milky Way which are
essentially this large, Paul - but are too diffuse to be readily
observed visually? I'd always understood the huge nebulous area
around the Gum Nebula to represent a single identifiable entity.
And long-exposure, wide-angle images of Orion make most of that
constellation's area of the sky appear to be one vast nebula...
This is a really interesting topic - related (kinda) to visual
observing, but also stimulating a real sense of wonder for me!
> -----Original Message-----
> From: firstname.lastname@example.org
> [mailto:email@example.com]On Behalf Of Alsing,
> Sent: Thursday, January 23, 2003 7:33 PM
> To: 'firstname.lastname@example.org'
> Subject: RE: (IAAC) Obj: NGC 604 - Inst: 200mm Newtonian
> Kim wrote
> ...I was looking at M33 ...it is in fact an HII region...being 1500
> LY across...
> If you want to really have something to think about, understand that
> the 1500 LY
> diameter of this massive object is very nearly the same as the
> DISTANCE to M 42.
> It would completely fill the empty space between us & M 42.
> If placed at M 42's distance, NGC 604 would cover 60 degrees of the sky. It
> completely boggles my mind.
> \Paul Alsing
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