“Eclipses (Solar and Lunar) are relatively rare events occuring about 4 to 7 times per year throughout the world, albeit visible only in some parts of the world. … There has been an increasing participation in Singaporeans catching eclipses and other celestial events throughout the years. This could be attributed to better awareness and more publicity given to such events.” – Mr Albert Ho, President TASOS (The Astronomy Society of Singapore)
The total lunar eclipse on 4 April 2015 will be visible in Singapore and TASOS will be partnering Science Centre Singapore in hosting this event for the public. The attached images from TASOS explain how lunar eclipses occur and also the timings of the various phases of the lunar eclipse on 4 April 2015.
An eclipse of the Moon can only occur at Full Moon, and only if the Moon passes through some portion of the Earth’s shadow. The shadow is actually composed of two cone-shaped components, one nested inside the other. The outer or penumbral shadow is a zone where Earth blocks part but not all of the Sun’s rays from reaching the Moon. In contrast, the inner or umbral shadow is a region where the Earth blocks all direct sunlight from reaching the Moon.
TASOS also advised that the lunar eclipse is happening in the low Eastern horizon from Moonrise at about 95 degree Azimuth. Anyone who wants to observe it must preferably have a clear horizon towards the East. As the Moon is large and bright compared to other Celestial objects, observers can even observe this total eclipse phenomena via the naked eye. A small telescope or binoculars will however show you a lot more details.
As mentioned in our previous post, telescopes will be set up at Science Centre Singapore on 4 April for visitors to observe the eclipse. There will be a variety of activities happening at the Science Centre, including a talk for you to understand the lunar eclipse. The Moon will rise up at 7.07pm, and we can see the maximum eclipse around 8pm, lasting for 4 minutes 43 seconds. Have fun on 4 April!