Re: [APML] OK, I finally did it: FIRST FILM SHOT,IC1396/NGC7000 widefield

["Richard Crisp" <rdcrisp@earthlink.net>]

----- Original Message ----- 
From: "Wei-Hao Wang" <whwang@gmail.com>
To: "Richard Crisp" <rdcrisp@earthlink.net>; "Discussion of Film
Astrophotography" <astro-photo@seds.org>
Sent: Saturday, July 03, 2004 2:17 AM
Subject: Re: [APML] OK, I finally did it: FIRST FILM SHOT, IC1396/NGC7000
widefield


> Hi Richard,
>
> When there is some polar alignment error, the field will rotate about the
> guide star.  So if the guide star is away from the NGC7000 corner in your
> picture, it's possible that the trailed stars are caused by field
rotation.


Yep that pretty well confirms my suspicion. Thanks Wei-Hao!


>
> Nice image!
>
> Wei-Hao
>
> -- 
> ________________________________________________________________
> Wei-Hao Wang  :)
>
> Institute for Astronomy at University of Hawaii
>
> Address:
> 2680 Woodlawn Drive         Personal Website:
> Honolulu, HI 96822             http://www.ifa.hawaii.edu/~wang
> ________________________________________________________________

_______________________________________________
Astro-Photo mailing list
Astro-Photo@seds.org
http://seds.org/mailman/listinfo/astro-photo