Re: [APML] Orion Mosaic preview

["Bert Katzung" <katzung1@comcast.net>]

Hi Wei-Hao:
Any specific suggestions as to which island and where on that island is best
for someone who has to fly in with all his equipment?
Thanks,
Bert

Bert Katzung
katzung1@comcast.net
www.astronomy-images.com

----- Original Message ----- 
From: "Wei-Hao Wang" <whwang@asiaa.sinica.edu.tw>
To: "Discussion of Film Astrophotography" <astro-photo@seds.org>
Sent: Tuesday, January 27, 2004 4:22 PM
Subject: RE: [APML] Orion Mosaic preview


> Hi Chris,
>
> It's a shame that I had not realized how good the sky condition
> here is for three years of stay in Hawaii.  I'm so used to
> stay in the observatories and take deep, subarcsec resolution
> images without appreciating it.
>
> Since 2003, I started to take amateur astrophotos here.  Only
> after I compare the Mauna Kea results with those I got in Taiwan
> several years ago (with exactly the same telescope and E100S), I
> realize the sky here is really dark.  This Orion mosaic (as an
> example), is so deep that the faintest nebula I can get is limited
> by the correction of the vignetting pattern, not by the background
> noise, nor by the film grain.  And this is with an ASA100 film and
> an exp time of only 90min.  Very hard to believe!
>
> I guess I'm not the first person to realize this.  Now many
> Japanese amateur astrophotographers come to Hawaii to take pictures,
> in a monthly basis.  There is even a Japanese telescope shop
> renting telescopes (10" RC, 5" flat-field APO, etc) to Japanese
> astrophotographers on the Maui Island.  I also heard that a CCD
> amateur astrophotographer from mainland US came to Hawaii frequently.
> I don't know the light polution situation in other states.  But if
> it is a problem and if you don't mind flying around, come to Hawaii.
> Many people are doing so already.  I will be very happy to give
> you some directions.
>
> Cheers,
>
> Wei-Hao
>
>
> On Tue, 27 Jan 2004, Chris Schur wrote:
>
> > Wei-Hao,
> >
> > Id say your sky is pretty darn dark up there.  The delicate loop
connecting
> > the ends of IC434 shows up very well, as well as the blue traceries
around
> > IC426.  Outstanding.
> >
> > Chris Schur
> >
>
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