RE: [APML] 'challenge'

["Chris Schur" <cschur@cybertrails.com>]

I have to strongly disagree with those who say its OK to composite an image
and think of it as anything like a challenge.  I can do that tonight, with
an atlas for a guide as to where saturn is going to be, and thats cheating.
Wouldnt it be clever, if we could think of a way to REALLY get the image,
real time?  Not some pasted together fake, but an actual image.  I can think
of several ways to do this.  My first thoughts are to shoot with the Ha
filter and CCD, and determine the maximum exposure in seconds so saturn just
doen not saturate.  Than add bunches of those, that can fit within a narrow
10 or 15 minute time frame so saturn does not move very far between shots.
You will end of with (I hope!) a black and white REAL image, fully
appreciated by your peers as a worthy effort to the upcomming january 4th
challenge.

Sorry I feel so strongly about this, but after Astronomy Magazine published
the moon-saturn paste up a number of months back, I shudder at the thought
of what things could come to if this is taken for granted.  I would like to
hear others thoughts on this, the use of masks for example during exposure,
or whatever.

Ok, shoot me.

Chris Schur

-----Original Message-----
From: owner-astro-photo@seds.org [mailto:owner-astro-photo@seds.org]On
Behalf Of Matt BenDaniel
Sent: Thursday, December 19, 2002 2:00 PM
To: astro-photo@seds.org
Cc: direland@drdale.com
Subject: Re: [APML] 'challenge'


Dale,

It depends on the "rules".  You could take a long exposure of the Crab
before Saturn crosses it.  Then you could take a short exposure of Saturn
as it crosses.  Assuming you register the images on the stars, would that
be "fair"?  It can even be accomplished without using any digital
technologies (although I would).

Matt


Dale Ireland said:
> Saturn passes across the Crab Nebula Jan 3. That should be a real photo
> "challenge"
--
Matt BenDaniel
http://starmatt.com



--  APML Archives at <http://astro.umsystem.edu/apml/>  ---
             Unsubscribe at <majordomo@seds.org>


--  APML Archives at <http://astro.umsystem.edu/apml/>  ---
             Unsubscribe at <majordomo@seds.org>