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Article: <5fhji4$8ij@dfw-ixnews3.ix.netcom.com>
From: saquo@ix.netcom.com(Nancy )
Subject: Re: Tholen Caught DOCTORING Hale-Bopp Images!
Date: 4 Mar 1997 16:44:52 GMT
In article <5fg3gh$1cu@news.Hawaii.Edu> David Tholen
writes:
>> Row [6], having the same area as Row [5], is dimmer BUT
THE
>> SURROUNDING STARS ARE THE SAME INTENSITY
>> Saquo@ix.netcom.com
>
> Of course; that's the way stretching works. Anything above a
> certain threshold setting is made "white". Once
beyond that
> setting, the stars won't get any brighter.
> tholen@galileo.ifa.hawaii.edu
How convenient, then, that the THREE STARS CLUSTERED WITH WHAT YOU'RE CALLING HALE-BOPP GET BRIGHT RIGHT ALONG WITH HALE-BOPP, but ALL the other myriad stars in the image DO NOT!!!!! In fact, the cluster including the Hale-Bopp thingie has a life of its own, almost as though it were separate from the rest of the image! Folks, I'm not talking about a slight brightening here, the central cluster around what is termed Hale-Bopp becomes umpteen times brighter than ANY of the surrounding stars, of which there are 20 or more. I'll count the pixtels to dramatize this.
| Dim Stars | Bright Stars | HB Thingie | HB Cluster Stars | |
| ROW 5 | 7, 4, 4 | 7, 4, 3 | 15 | 13, 14, 12 pixtels |
| ROW 6 | 7, 4, 4 | 6, 3, 3 | 9 | 4, 6, 3 pixtels |
| ROW 7 | 4, 3, 4 | 3, 2, 1 | 4 | 1, 2, 0 pixtels |
Now by normal stars I'm talking about THE WHOLE SURROUNDING FRAME - 43 or so stars, compared to 3 stars clustered with the Hale-Bopp thingie. And how does this stretch work, David, when many of the surrounding stars were as dim as the the Hale-Bopp cluster but didn't participate in the stretch! Its almost like you've got a couple SEPARATE stretches here, David, at least that's what it looks like.