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Lunar Parallax Demonstration Project
[Purpose] To demonstrate lunar parallax (the apparent shift in the Moon's position when observing it from different positions on the Earth's surface) using contributed images of the Moon against a fixed star-field. [Project Image Contributions] If you want to contribute to this project, all that is required is an image of the Moon to be taken, during the totality phase of the next lunar eclipse on the 8/9th November 2003, that shows the Moon and at least two stars in the same image field. Totality is predicted for 01:06 - 01:31 UT on the 9th Nov. In order to make sure that all photos are taken at the same time, using an accurately set watch, please try and capture a Moon/star-field image at 01:10, 01:15, 01:20, 01:25, 01:30. Ideally, the 01:20 image is the one that is wanted (the others are safety net images ;-) ). If you cannot get a photo of the Moon and stars in the same exposure, image one exposure for the Moon and immediately take another, exposed for the stars (i.e. over exposing the Moon). The Moon's diameter should be as large as possible in the image frame with at least two identifiable stars in the field. However, any image that shows two stars and a distinct lunar disk will be ok. If you get a result and want it to be used in the project, please let me know by email (don't send any images yet) to pete dot lawrence at pbl33 dot co dot uk, putting the word "parallax" in the subject header of your email. Please don't send me photos unless I come back and ask for them! Your email should also indicate the time you took the image and your location (lat/long if possible). If anyone's interested, here's a link to a previous international imaging project that I co-ordinated. http://homepage.ntlworld.com/p.lawrence1/planetanim/animintro.html Thanks in advance to all contributors. -- Pete Homepage at http://www.pbl33.co.uk CCD/digicam astronomy |
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