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

Posts tagged “philippine total lunar eclipse 2011

Skywatching Highlights: June 2011

This month’s skywatching highlights:

  • June Solstice. The Sun reaches its most northerly point in the sky, the June solstice, on June 21 at 17:16 Universal Time (UT).  This marks the beginning of summer in the northern hemisphere and winter in the south.
  • Partial Solar Eclipse.  Visible from the Arctic, Siberia, and parts of Iceland on June 1.  The eclipse peaks at 21:16 Universal Time.
  • Total Lunar Eclipse.  Completely visible on June 15 from South Africa and western Australia, this long and deep eclipse is the first of 2011.  The eclipse peaks at 21:12 UT.
  • Boötids Meteor Shower. Peaks on or about June 27 near midnight, this unpredictable meteor shower has shown up to 100 meteors an hour.  Or it could be a dud.  The Moon isn’t a factor this year, so take a look and see what happens.  The radiant is just off the peak of Boötes, though you can see meteors anywhere in the northern sky.





Partial Solar Eclipse – This will not be visible in the Philippines. The eclipse will begin at exactly 3:25 a.m. (Philippine Standard Time). It will be visible in Eastern Asia, northern N. America, the N. tip of Scandinavia, Greenland and Iceland.


New Moon 5:05 AM


First Quarter Moon 10:10 AM


Saturn 8° North of the Moon 5:00 AM


Moon at perigee (nearest distance to Earth) 10:00 AM


Mercury in superior conjunction 8:00 AM


Total Lunar Eclipse of the Moon — The eclipse will begin at 1:23 AM Philippine Standard Time (PHT) and will end at 7:02 AM (PHT).


Summer solstice  — Philippine nights are at their shortest and daytimes are at their longest around the Summer solstice.This is the time when the Sun attains its greatest declination of +23.5 degrees and passes directly overhead at noon for all observers at latitude 23.5 degrees North, which is known as the Tropic of Cancer. This event marks the start of the apparent southward movement of the Sun in the ecliptic. 1:16 AM


Pluto occultation 7:15 AM


Uranus 6° South of the Moon 11:00 PM


Moon at apogee (farthest distance to Earth) 12:00 NN


Peak of the June Bootids (Active from June 22 to July 2 ZHR=0-100+)
— The radiant of the shower will originate from the constellation of Bootes, the Herdsman, which lies nearly overhead when darkness falls.


Pluto Occultation 10:15 PM


Pluto at opposition 1:00 PM


Mars 1.7° south of the Moon (These two objects can be found hanging in-between 2 notable star groups – the Pleiades and Hyades in Taurus) 3:00 AM

* PHT = UT + 8

Read the guide on how to find the 5 visible planets this month — Mercury, Venus, Mars, Jupiter, and Saturn from EarthSky.org. If you are looking for star maps for June, you may check them here. You may also download the free planetarium software, Stellarium to see the the positions of the heavenly bodies each day according to your location.
Clear skies!




Red Moon in June: Public Stargazing and Total Lunar Eclipse Observation

The University of the Philippines Astronomical Society (UP AstroSoc) invites everyone in observing the spectacular total lunar eclipse on June 15 – 16!

After the moon got super huge last March 2011, this coming June 16 2011, the moon will once again be spectacular to watch as it turns red because of the total lunar eclipse.

The first of the two eclipses of 2011 will occur on the said date and it will start at around 1:25AM and will end at around 7AM but the fun part where it turns red will be on its totality at around 4AM.

What is more special about this eclipse is that this will be the darkest lunar eclipse in almost 100 years as the centers of the sun, the earth and the moon would nearly be on one straight line. This also means that the Moon will pass deeply through the Earth’s Umbral Shadow which will make the totality phase last about 100 minutes.

This event is open to all. Come and invite your family and friends, and witness this wonderful sky show.

Clear skies, everyone!

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. 🙂