Re: [APML] Lagoon Mosaic Revisited

["Robert Gendler" <robgendler@worldnet.att.net>]

Hi Ray,
You have a good eye! <g>. I filled in area around the periphery of the image
with older data. Without the composition would have been awkward.
You were one of the few people who noticed <g>.
Rob Gendler
email: robgendler@att.net
Web Site: http://www.robgendlerastropics.com
----- Original Message ----- 
From: "Ray Butler" <ray.butler@nuigalway.ie>
To: "Discussion of Film Astrophotography" <astro-photo@seds.org>
Sent: Monday, June 27, 2005 7:20 AM
Subject: Re: [APML] Lagoon Mosaic Revisited


>
> Robert,
>
> While not wanting to nitpick something that is near perfection, I wonder
> why the stars in the last 5% or so at the right hand side suddenly go
> all blurry? Was this due to some aggressive de-noising of an area which
> received less exposure than the rest?
>
> Also, you do realise that the image is upside-down (unless one's
> viewpoint is from the Southern Hemisphere)?  You need to rotate it 180
> degrees to get the usual "North up and East to the left" presentation.
>
> I got a large book when I was 15 years old which I always found really
> inspirational - "Amateur Astronomy" edited by Colin Ronan, published by
> Newnes. It was a major factor in steering me into astronomy as a
> profession; I still have it here on my shelf. Actually the title was
> something of a misnomer, as it was really a seriously good book on
> astronomy in general, not shying away at all from astrophysical
> concepts, and with as much treatment given to the most recent (circa
> 1985) professional techniques, results and theories as to the amateur
> side of things. Anyway, on page 167 is a beautiful full-page colour
> photo of the Lagoon and Triffid nebulae taken by the 1.2m UK Schmidt
> telescope in Australia. Comparing it now to yours, it obviously has a
> much wider FOV and it just edges yours on stellar crispness, but yours
> beats it on depth and on detail within the nebula. That is quite
remarkable.
>
> Ray "who recalls his excitement at first seeing the Lagoon in 1986,
> hovering in the June perma-twilight over his 52N horizon" Butler
>
> -- 
> Dr. Ray Butler
> Lecturer, Physics Department & Computational Astrophysics Laboratory,
> National University of Ireland - Galway,
> University Road, Galway, Ireland.
> Web: www.nuigalway.ie/physics/ Email: ray.butler-AT-nuigalway.ie
> Tel: +353-91-493788 FAX: +353-91-494584
>
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