TELESCOPES across the territory will focus on today's partial eclipse of the sun, which occurs just after noon. Students from Hong Kong and Chinese Universities will set up telescopes to measure the speed of the moon's shadow passing over the sun and the exact size of the area in shadow. The Space Museum has erected a giant screen in the Hall of Astronomy to show images of the eclipse from 10 am to 2 pm. Astrologers and fung shui experts also regard the eclipse as particularly important. Yesterday, they warned it would bring big changes for everyone and possible disaster for some. Because the sun will be quite high in the sky, most people will be able to see it, according to Astronomical Society honorary secretary Ng Hung-cheung. Those at southern Lantau Island would see the maximum eclipse for up to 20 seconds - about a third - longer than those in the eastern New Territories, he said. But he stressed that people should not watch the sun even for a few seconds without eye protection of several layers of fogged photo film or welding goggles. Sunglasses were not enough, he said. Astrologer Roselyne Lee said today's eclipse was the last of a series occurring in the Scorpio planetary arrangement. The next one would be in 2020. 'Scorpio represents transformation, death and rebirth, a cleansing process. This will bring a lot of changes to people's lives, like a catalyst,' she said. She felt today was a good time for meditation. Fung shui experts said travel, business launches, weddings and burials should be avoided while the sun's energy was reduced. Wong Man-chiu - whose fung shui name is Koon Lung - said the date and time of the eclipse were opposed, which was a bad omen. 'No marriage and no openings [of new businesses], ' he advised. 'Travelling by aeroplane is also not very good.'