Wandering through the realms of the cosmos, pondering its huge vastness

Posts tagged “totality

Eclipses Visible in the Philippines During 2011

I noticed that most of my frequent visitors were searching for the eclipses in the Philippines for 2011. Well then folks, I have listed below the eclipses that could be observed in the Philippines throughout the year. 🙂

Four partial solar and two total lunar eclipses will take place in 2011 but only the  lunar eclipses will be visible in the Philippines. These two are both total lunar eclipses which means that during these events, we can actually see the entire disk of the Moon being covered by the Earth’s umbra — thus we can observe a nice Reddish Moon.

Geometry of a Lunar Eclipse

Photo of the Dec. 20 total lunar eclipse from Cochranville, Pa. taken by Kevin R. Witman, using a Meade LX50 10" Schmidt Cassegrain telescope and a Canon XS DSLR camera.

Total lunar eclipses are pretty rare events  so be sure to plan your observation ahead of time and make the most out of this astronomical experience. (In the Philippines, the last one happened during May 5, 2004)

Enjoy! 🙂

June 15 Total Lunar Eclipse

It will be visible completely over Africa, and Central Asia, visible rising over South America, western Africa, and Europe, and setting over eastern Asia. In western Asia, Australia and the Philippines, the lunar eclipse will be visible just before sunrise on June 16. (View NASA Map and Eclipse Information)

June 15, 2011 Eclipse Chart: The moon passes right to left through the Earth's shadow.

View the eclipse animation

Below are the complete eclipse circumstances as well as predicted times of each eclipse phase (in PHT or UT+8) computed by Fred Espenak of NASA. Altitude and azimuth approximations were provided by the Astronomical League of the Philippines (ALP).
Moon Enters Penumbra 01:24:27am 45 deg 212 deg S
Moon Enters Umbra 02:22:57am 37 deg 225 deg S
Moon Enters Totality 03:22:29am 26 deg 234 deg SW
Maximum Totality 04:13:44am 16 deg 240 deg SW
Moon Exits Totality 05:02:42am 06 deg 244 deg SW
Moonset 05:30:00am 00 deg 246 deg SW
Moon Exits Umbra (not visible) 06:02:14am ———- ———–
Moon Exits Penumbra (not visible) 07:00:41am ———- ———–
*The indicated times above are on June 16.
*Sunrise is at 05:26 AM.

According to the ALP, “this eclipse is particularly special because the Moon passes almost exactly in front of the center of the Earth’s shadow during totality phase thus giving us local viewers in the Philippines a long totality time of around 100 minutes” (1 hr 40 mins) .

The Moon will be located in the constellation Ophiuchus during this eclipse. Click to enlarge image.


December 10 Total Lunar Eclipse

This eclipse will be visible from all of Asia and Australia, seen as rising over eastern Europe, and setting over northwest North America. (View NASA Eclipse Information)

December 10, 2011 Eclipse Chart: The moon passes right to left through the Earth's shadow.

Contact Times : (All in PHT= UT +8)

Moon Enters Penumbra 19:33:36 31 deg 72 deg
Moon Enters Umbra 20:45:43 59 deg 72 deg
Moon Enters Totality 22:06:16 64 deg 67 deg
Maximum Totality 22:31:49 69 deg 63 deg
Moon Exits Totality 22:57:24 75 deg 55 deg
Moon Exits Umbra 00:17:58 79 deg 321 deg
Moon Exits Penumbra 01:29:57 65 deg 292 deg
Note: All eclipse stages are visible in the Philippines. 😀

Because I got too excited for this, I created a video simulation of the entire eclipse using Stellarium. The Moon is at the constellation Taurus during this event.

lunar eclipse occurs when the moon passes behind the earth so that the earth blocks the sun’s rays from striking the moon. This can occur only when the Sun, Earth, and Moon are aligned exactly, or very closely so, with the Earth in the middle. Hence, there is always a full moon the night of a lunar eclipse.

Unlike observing solar eclipses wherein you need adequate eye protection, lunar eclipses are safe to watch with the naked eye. 🙂



The July 2010 Total Solar Eclipse Webcast

Last July 11, 2010, a total solar eclipse arced across the southern Pacific Ocean, blotting out the sun and offering stunning views to skywatchers, some of whom ventured to remote islands or rode cruise ships just to see the event.

Not everyone can spare the time and money to go on eclipse expeditions though. Good thing, one can still chase eclipses , thanks to webcasts available over the Internet which were made possible through the great efforts of astronomers and eclipse-chasers who went to the ends of the earth to catch this spectacular event  😀

Seeing an eclipse on your computer screen can’t possibly match catching sight of the black sun in person, of course but experiencing the eclipse online can still give you a glimpse of one of nature’s rarest phenomena. You’ll also feel the thrill of the hunt – because eclipse-watching over the Web, like eclipse-watching in person, involves more than a little bit of persistence and luck.

A fellow amateur astronomer, Thilina Heenatigala from Sri Lanka, was kind enough to share a list of web-streams which he compiled so that everyone can watch the eclipse live. Unfortunately, due to flu I was not able to take screen shots of the web stream 😦 The following captures were made by Thilina himself which came from the live web stream via a group from Wakayama University at Hao (French Polynesia).

The central part of the moon’s shadow touched down around 2:15 p.m. ET Sunday, zoomed over the ocean, hit the French Polynesian island of Tatakoto around 2:45 p.m. and passed over Easter Island’s throngs starting at 4:08 p.m. ET. The eclipse finished up over Chile and Argentina, near the southernmost tip of South America, at 4:51 p.m. ET.

The total phase of the eclipse lasted only a few minutes at most. The partial phase, during which the moon slowly covered up the sun’s disk and then retreated, lasted much longer – about an hour and a half on each side of totality on Easter Island, for instance.

I also found some beautiful images and videos of the eclipse online. Those were taken and documented by eclipse-chasers which came from all over the world 😀

The very spectacular diamond ring effect!

Totality at its best

Viewing a total solar eclipse, even just on your computer 😛 is really an astounding experience. Hopefully I could also watch the event live with my own eyes soon  😀


video and image credits:

(web captures) http://www.ustream.tv/channel/live-eclipse1/v3

(high-res eclipse images) Bill Kramer http://www.eclipse-chasers.com/tse2010.html

(video) David Makepeace http://www.eclipseguy.com