Yes, indeed Patrick - a great project. By what method or methods did you and/or Ms. Park attempt to measure parallax? Kim -----Original Message----- From: utah-astronomy-bounces@mailman.xmission.com [mailto:utah-astronomy-bounces@mailman.xmission.com] On Behalf Of Wayne Sumner Sent: Friday, August 22, 2008 1:31 PM To: utah-astronomy@mailman.xmission.com Subject: Re: [Utah-astronomy] International cooperation Wow! What a great idea for teaching parallax to my astronomy students at Northridge! Did you do any calculations to see what the expected parallax angle would be? Any compensation for atmospheric refraction differences? Great work, Patrick. Wayne A. Sumner Math/Physics/Astronomy/Engineering Boy's Tennis Coach Northridge High School Davis School District (801) 402-8610 No virus found in this outgoing message. Checked by AVG. Version: 7.5.524 / Virus Database: 270.6.6/1627 - Release Date: 8/22/2008 6:48 AM