... That sounds great. I guess he did get around to fixing those problems (our version of his panorama is at least 4 years old). ... Yes I did end up usingMessage 1 of 17 , Jan 16, 2006View SourceRyan Wyatt wrote:
> In reference to Axel Mellinger's all-sky, Ka-Chun wrote:That sounds great. I guess he did get around to fixing those problems
>> Just be warned that because Axel mosaicked together many multiple
>> shots of the sky, there are blend issues.
> Actually, in our experience dealing with his version of about six
> months ago, we found very accurate alignment between Mellinger's image
> and our digital database. We could drop the Digital Universe starfield
> on top of his image with near-perfect registration.
(our version of his panorama is at least 4 years old).
>> To nix the problem of doubles when overlaying artificial stars on theYes I did end up using tools for FITS images, specifically IRAF's
>> photographic panorama, we've removed all the stars from the Mellinger
>> images using a cosmic ray detection and deletion tool.
> What tool did you use...? I only know of stuff that works on FITS
> images. And some of the stars are rather large (i.e., non-cosmic-ray-
> like), aren't they?
cosmicrays package. It has options for changing the expected size of
the cosmic ray, so with multiple passes, one can clean all the stars
from the faintest to the largest (tens of pixels across) in diameter.
One does have to decompose the 3-color image into individual color
channels, save them out as FITS files, and then run them one at a time
through the cosmic ray removal package.
> Ryan, a.k.a.--kachun +** Dr. Ka Chun Yu **+
> Ryan Wyatt, Science Visualizer
+** Curator of Space Science **+
+** Denver Museum of Nature & Science **+
+** 2001 Colorado, Denver, CO 80205-5798 **+
+** kcyu@... 303-370-6394 **+
To all Fulldomers or Dome-l members who sell projectors, The pace of development in this field is such that it is difficult to keep abreast of all that isMessage 2 of 17 , Jun 21, 2006View SourceTo all Fulldomers
or Dome-l members who sell projectors,
The pace of development in this field is such that it is difficult to
keep abreast of all that is happening, so I am taking this method of
contacting you in one fell swoop.
In the City of Newcastle in the north east of England, there is a well
established museum called the Hancock Museum. The Hancock is being
gutted and reshaped and will arise in a new existence and is to be
called " The Great North Museum ".
A London firm , Casson Mann (http://www.cassonmann.co.uk) has been
engaged to see the project through The plans will include a seven metre
planetarium and I have been asked to see if I can fit one of my fabric
The scheme is to be finished some time in 2008, so there is a little
time to think about things. If you have a digital projector which you
think will be suitable for a seven metre dome, or if you are developing
one which is scheduled to come on line next year, would you be so kind
as to send the appropriate details to the following person, as well as
to include me in the loop so I know what is going on.
Adriana Ferlauto, adriana@...