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

Philippine Astronomy

Travel Package to Outer Space!


UP Astronomical Society in collaboration with Trade School Manila invites you to

The Travel Package to Outer Space I

A class (for all ages) that consists of interesting presentations about the following topics (celestial sphere, astronomical events and misconceptions, constellation and time telling). Fun DIY experiments await after the presentation!

NO REGISTRATION FEE! Take the class and pay for it with an item from the instructor’s wish list: tent, storage box, kiddie/roll up mats, flashlight with red lens, electric floor/box fan, celestial sphere model or celestial globe, Astronomy books (brand new or second hand)

This event is on October 5, 2013, 6:00pm at Liberty Plaza, 102 H.V. Dela Costa Street, Salcedo Village, Makati City.

Directions on how to get to the venue: You can ride the MRT and get off at Buendia Station. Ride a jeepney beside McDonald’s and go down at Buendia-Makati Avenue (Petron gas station). Cross the street to get to the other side (Pacific Star building) and walk straight at Makati Avenue until you reach H.V. dela Costa. Walk through H.V. dela Costa until you reach Commune (it’s at the corner of Valero and H.V. dela Costa).


Register now at http://www.tiny.cc/astrotrade

#ThrowbackThursday post: June 6, 2012 Transit of Venus

transit of venus copy copy


June 6th last year, stargazers from across the globe gathered together to watch one of the rarest astronomical spectacles.

Many turned their attention to the daytime sky to view the planet Venus passing directly between the Sun and Earth – a transit that won’t occur again for another 105 years.

The transit of Venus happens in pairs eight years apart – but then with more than a century between cycles. During the pass, Venus appeared as a small, dark round spot moving across the face of the sun.

National Astronomy Week 2013

This year’s National Astronomy Week (NAW) falls on 18-24 February 2013. NAW  is an annual event in the Philippines that is observed every third week of February under Presidential Proclamation No. 130. The theme of this year’s celebration is “Solar Max 2013: Discovering the Sun’s Awakening Power”.

The Philippine astronomy community is especially active during this period. This year, aside from the exciting activities that are usually prepared by several amateur astronomy groups, PAGASA also launched its first astrophotography contest for  Elementary/High School Level (combined level) and College Students.

Below is a list of NAW 2013 activities organized by various Philippine astronomy organizations. (information taken from their own respective websites)

For more information or for other inquiries, kindly leave a comment or visit the online pages of the respective organizations.

Clear skies and happy NAW! 🙂

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The Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA), the agency mandated under Presidential Proclamation No. 130, to spearhead the annual celebration, has prepared the following activities for the whole celebration:

  1. Free Planetarium Shows
  2. Stargazing and Telescoping Sessions at PAGASA Observatory
  3. First Astrophotography Contest for Elementary/High School Level (combined level) and College Students (First-Come, First-Served Basis)
  4. Free Posters in Astronomy to Visiting Schools at the Planetarium and Astronomical Observatory.
  5. Free 2 days Mobile Planetarium Shows, Stargazing and Telescoping Sessions in Selected Public Elementary and High School Students in Legazpi City.
  6. Seminar/Workshop on Basic and Observational Astronomy for Public Science Teachers in Metro Manila.

The free planetarium shows and lecture and telescoping sessions will be eld at the PAGASA Science Garden and Astronomical Observatory, respectively. It will be scheduled on a first-come, first-served basis. Planetarium shows will be conducted from 8:00 AM to 5:00 P.M. daily, while telescoping sessions will start at 7:00 o’clock nightly. Please see Attachment 1 for the mechanics of the 1st Astrophotography Contest.

The Seminar/Workshop for Public Science Teachers of Metro Manila will be conducted at the Main Conference Room, 2nd Floor, PAGASA Central Office Bldg., Science Garden, Agham Road, Diliman Quezon City on 22 February 2013 at 2:30 PM. A stargazing session will follow after the Seminar/Workshop, which will be held at the PAGASA Astronomical Observatory, University of the Philippines, Diliman, Quezon City.

Interested parties who would like to visit our astronomical facilities during the celebration may call at telephone number 434-2715 for reservation purposes. Please click the following links for the Mechanics andRegistration Forms.

For further inquiries, please visit their website at http://www.pagasa.dost.gov.ph.

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Astronomical League of the Philippines (ALP)


For more inquiries on ALP NAW activities, please contact NAW Chairman Christopher Louie Lu at (0919) 3057176.

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 Philippine Astronomical Society (PAS)

NAW 2013

20th National Astronomy Week 2013

Schedule of Activities NAW 2013
NAW special guests:

Arnold Clavio – Guest of Honor – Distinguished UST Alumni, TV GMA Personality

Prof. Edmund Rosales – Project Director, SkyXplore; ABS weather broadcaster

pas activities1

pas activities2

The image below shows the contest event floor plan.


Registration for the different competitions can be done by e-mailing your confirmation together with the list of participants to pasnaw2012@yahoo.com


February 19:  Paco Catholic School – “The Universe As We Know It”  by Engr. Camilo Dacanay

February 20: Ateneo – “Physics and The Study of the Universe”  by Engr. Camilo Dacanay

February 22: FEU-EAC – “Space: Weather Effects and Consequences” ”  by Engr. Camilo Dacanay

February 22: International Beacon School – “Stellar Evolution”  by Engr. Camilo Dacanay

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UP Astronomical Society (UP AstroSoc)

The University of the Philippines Astronomical Society (UP AstroSoc), together with other Philippine astronomical organizations, celebrates the 20th National Astronomy Week (NAW) on February 16-23, 2013.  UP AstroSoc prepared a line-up of activities geared towards the organization’s objective of being able to enhance the awareness, interests, knowledge, and understanding of astronomy among students and the general public. The three main “star”-studded events that would be on February 23, 2013 are Big Bang, Take Off, and the Teachers’ Seminar.


BIG BANG!: The Astronomical Quiz Show

                Big Bang is a quiz show that will surely make high school students not just think outside of the box but think outside our world. It aims to showcase their knowledge about astronomy and boost their competitiveness as they battle for victory against students from Central Luzon, CALABARZON, and NCR. Big Bang would definitely create a loud blast this year so join now, if you can handle it.  Prizes await for those who can.

TAKE OFF!: A Rocket-Making Competition

                Take Off is a competition that will absolutely take you up to the skies.  With their creativity and innovativeness, students would make their own rockets using plastic bottles and boost it with pumped air and water.  The competitors would soar high as their rockets fly high to reach the gold.

TEACHERS’ SEMINAR: Astronomy Education

                UP AstroSoc believes that we should first appreciate before we educate.  That is why for this year, not only the students but also the teachers would take part of the National Astronomy Week celebration.  The Teachers’ Seminar aims to discuss through our educators what could we gain in promoting and spreading our knowledge of Astronomy to the society, the country, and to all humanity.  Some of the basic astronomical concepts would also be discussed during the seminar.

For inquiries, you may contact us at:

                BIG BANG!:Liezl Ann Motilla @ 09058052777 / leimotilla@yahoo.com

                TAKE OFF!: Kristine Jane Atienza @ 09152397942 / kjsatienza@gmail.com

                TEACHERS’ SEMINAR: Ericka Jane Angeles @ 09264254774 / ericka.jane.angeles@gmail.com


 For more questions regarding Astronomy and UP AstroSoc, feel free to like us on Facebook (www.facebook/upastrosoc), follow us on Twitter (@upastrosoc), and visit our website (www.askupastrosoc.blogspot.com).

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UPLB Astronomical Society (UPLB AstroSoc)

uplb astrosoc naw poster

Visit https://www.facebook.com/uplbastrosoc for more details.

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Stay tuned for updates!

Celebrate World Space Week 2012!

Join the largest annual public space event on Earth!

World Space Week (WSW)  is an annual observance held from October 4 to October 10 established by the United Nations General Assembly to be an international celebration of science and technology and their contribution to the betterment of the human condition.

The start and end dates of World Space Week recognize the launch of the first human-made Earth satellite, Sputnik 1, on October 4, 1957; and the signing of the Outer Space Treaty on October 10, 1967.

UP Astronomical Society members held this WSW banner which contained the theme, “50 Years in Space” during the celebration of the World Space Week in the Philippines last 2007 (source: upastrosoc.multiply.com)

Every year, the World Space Week Association, in coordination with the United Nations Office of Outer Space Affairs, selects a theme that participants are asked to incorporate into their World Space Week events. The theme for World Space Week 2012 is “Space for Human Safety and Security.” All World Space Week participants are requested to: 1) Plan World Space Week programs that address this theme in some way; 2) Incorporate this theme into all of their World Space Week publicity materials.

Various WSW events will be  hosted by local participating organizations. In the Philippines, there are 11 registered events for WSW 2012. Everyone is invited to attend these events.

For more information about the WSW celebration, please visit http://www.worldspaceweek.org/. You may also follow @WorldSpaceWeek on Twitter and use the hashtag #wsw2012 in your tweets.

To infinity and beyond! 😀

Crescent Moon, Venus and Jupiter at Predawn on July 15th

Eastern sky at 4:00 am local time. Manila, Philippines. Image: Stellarium

Philippine sky observers will have a great chance to see all of the three  brightest objects of the night sky in close proximity to each other this weekend (weather permitting). On the morning of July 15th, the waning crescent moon will join the very bright “stars” Jupiter (upper) and Venus (lower) to form a nice celestial grouping, along with two prominent open star clusters — the Pleiades and the V-shaped Hyades —  in the constellation Taurus.

Venus has reached its greatest illuminated extent in Earth’s sky last July 12. Thus, it appears so dazzling now as a “morning star”  in our predawn sky, near Jupiter.

Meanwhile, in other parts of the globe, this celestial grouping event will be viewed as an occultation of Jupiter by the moon. An occultation is an event in which a celestial body covers another, farther away object, such as when the moon covers a star or a planet or when a planet or an asteroid covers a far away star. For this event, the moon will cover Jupiter for about an hour (the exact time and durtaion of the occultation is  dependent on the observer’s location). View the visibility map and timings of this event from IOTA.

Seeing Jupiter’s occultation is possible with the naked eye, but the look through a telescope, even using a small magnification, is marvelous. At first, two of Jupiter’s large moons (Io and Europa) will disappear behind the moon, then Jupiter will disappear and then the other two moons (Ganymede and Callisto).

Places close to the southeast will witness a ‘grazing occulation’ when Jupiter and its moons will skim the edge of the Moon. This will be well worth seeing through a telescope and Jupiter’s moons may be seen blinking in and out of view as they pass behind the lunar mountains. Further north and west a very close conjunction will be seen.

Don’t worry because even though we won’t be seeing this event in the Philippines this weekend, we are still lucky enough to see a very rare version of such an event next month, during the morning of August 12, 2012. That will be surely worth getting up to see!


Moon occulting Jupiter with its moons. Image: Stellarium

Observing occultations can also contribute to science. During the 80’s, Uranus occulated a distant star. Photos of the events showed that just before and after the occultation the star blinked several times. The theory then was developed that Uranus has a set of rings (like Saturn). When Voyager 2 reached Uranus it detected and photographed the predicted rings.

Don’t miss this event. Clear skies!

Related link: List of Notable Celestial Events in 2012

Rekindling Venus: Experience A Rare Celestial Event

Next month we will be the last people living today to witness one of the rarest astronomical events. On June 6, a special celestial event called the transit of Venus will take place, and it won’t be repeated in your lifetime.

During the transit, Venus will pass directly in front of the sun from Earth’s perspective, appearing as a small moving black dot.

The entire transit can be witnessed from eastern Asia, eastern Australia, New Zealand and the western Pacific, as well as Alaska, northern Canada and almost all of Greenland.

How rare is this astronomical event?

Transits of Venus occur in a pattern that repeats every 243 years with pairs of transits eight years apart separated by gaps of 121½ years and 105½ years. Only six of these transit have been recorded by civilization: 1639, 1761, 1769, 1874, 1882, and 2004. This June’s transit, the end of the 2004-2012 pair, won’t be repeated until the December 2117. This is the last chance for anyone alive today to see the rare celestial sight. Fortunately, the event is widely visible.

Unlike a total eclipse of the sun, which is visible only within a long narrow track traced by the moon’s shadow, during the 2012 transit of Venus the entire hemisphere of Earth facing the sun will get to see at least part of the planet’s solar crossing.


Astronomers during the 18th Century travelled thousands of miles and risked their lives to witness this precious sight.

They did so because they believed Venus held the key to the most pressing astronomical quest of the age: the size of the solar system.

In 1716, astronomer Edmund Halley realized that by timing the transits of 1761 and 1769 from widely-spaced locations on Earth it should be possible to triangulate the distance to Venus using the principles of parallax and give the distance between Earth and the Sun.

For astronomers today, the Transit of Venus offers a chance to gain insights into the planet’s notoriously thick, cloudy atmosphere, and use the refraction of sunlight to finetune techniques for hunting planets orbiting distant stars.

One of the most useful exercises will be to compare observations of the transit made by Earth-based telescopes, orbital telescopes and robot probes.

The Transit of Venus (TOV) is among the rarest astronomical phenomena and won’t happen again until the year 2117. So prepare now, and don’t miss out on this extremely special event!

Observing the TOV from the Philippines

Filipinos are lucky because the entire Philippines is well positioned to witness the transit of Venus on Wednesday 6th June 2012.

To those who are planning to observe this rare event, you might just be interested in joining us in this free public viewing.

Rekindling Venus
June 06 2012, 6am – 1pm
College of Science Amphitheater, University of the Philippines Diliman

This event was launched through the collaboration of the Australian Embassy, UP Astronomical Society, UP- Los Banos Astronomical Society, RTU Astronomical Society, DOST-PAGASA and D’Great Rovers.

This event is for FREE and is open to everyone. Even those who would be coming from other parts of the globe are invited.

For more details, please visit its Facebook event page:


Contact Times

Local transit times for Quezon City, Philippines. source: http://transitofvenus.nl/wp/where-when/local-transit-times/

The general transit circumstances can be found here.

Safe Viewing

Warning: NEVER look at the sun with your naked eye, binoculars or a telescope. Serious and permanent eye damage, including blindness, can result.

The Black Drop Effect

The black drop effect occurs when Venus appears to “connect” to the edge of the Sun before actually reaching the edge. You can model the black drop effect by slowly pinching your index finger and thumb together. Your fingers seem to meet even before they touch. This optical phenomenon was originally thought to provide proof of Venus having an atmosphere. For an explanation of the black drop effect, check out the following links:


A YouTube video of modeling the black drop effect with your fingers:

An online simulation of the black drop effect:

Other resources if you are looking for more information on the Transit of Venus:

Crescent Sun at Sunrise

This morning, a wonderful view of a golden crescent sun was successfully observed  by a lot of skyviewers using appropriate filters for visual observing and photography. The partial solar eclipse began at sunrise at 5:27 am local time and ended at 7:06 am. Fortunately,  the weather cooperated this time despite bad weather forecasts and continuous rains during the past few days.

In some places like China, Japan, and United States, the event was seen as an annular eclipse which looked like a fiery ring in the sky.

I observed this event along with an Astrosoc orgmate in their house at Marikina City. Their location is great for observing events which can be viewed along the eastern sky. Moreover, it is also high enough to give a very good vantage point.

Only a few minutes after sunrise, a big yellowish grin in the east just above a layer of clouds greeted us earthlings who patiently waited even without sleep. Yay!

Below is a composite image that I created using Adobe Photoshop to illustrate how the the sun looked like when it was rising from behind the Sierra Madre mountain range.

Many Filipinos anticipated the event as solar eclipses are not frequently visible in the Philippines. The last one occurred last January 15, 2010, while the next won’t take place until March 9, 2016.

For avid amateur astronomers like me, this event was extra special as it provides a good opportunity for me to practice solar observation in preparation for the upcoming transit of Venus, a very rare phenomenon that won’t be repeated until 2117. I have never done any solar observation before using my own Galileoscope for fear of getting it damaged (its lens and body tube were both made up of plastic which are not great for viewing the sun using solar projection method). Moreover, the danger of having an eye injury also worried me. Hence, I decided not to pursue solar observation unless I get a decent filter that I could safely attach and use with my equipment — be it a camera or my scope.

Months before this event, I was very anxious that I might not be able to observe it having only a cheap plastic scope and a camera. But I was really determined that I’ve read a lot about solar observing and saved some money for it just in case there’d be a need to buy some materials. When the event came nearer, however, financial constraints became a problem, so I just forego the idea of buying a costly filter and chose to buy a #10 welding glass instead. It might not produce nice images but it’s a good and safe alternative.

Nonetheless, God must have heard my thoughts that he made a miracle. Haha! A few days before the solar eclipse, a nice surprise came in when a generous UP AstroSoc orgmate offered me an extra piece of Baader solar filter — for free! Wee!:)

Below were some of the images I took using a hand-held Panasonic Lumix DMC-FH2 digital camera on a 2-inch refractor (Galileoscope) with a Baader 5.0 ND solar filter.

By the way, these photos have been featured several times today in local news programs. They also got featured in front page of spaceweather.com and  in an article by Earthsky.org.

A screencap showing my image in GMA’s 24 Oras. Thanks to my sister who posted this!

I will upload the other photos soon, including a complete observation report. For the meantime, I’d better get some sleep first because I still need to attend some other important conventions outside the city. 🙂

To the stars!

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I created two composite images which show the progression of the partial solar eclipse as we observed the event.

The image above was featured in Amateur Astronomy Picture of the Day (AAPOD) last June 24, 2012.  It was my fifth AAPOD image. 🙂

To God be the glory!

Clear skies to all.

UP Astrosoc’s Summer 2012 Application

UP Astronomical Society is now open for Summer Application!
See you this thursday, 19 April 2012 6pm at the PAGASA Astronomical Observatory Moon Deck near CHE.

Get the chance to look through the largest telescope in the Philippines, Andre the Giant!

Don’t miss it! 🙂

For inquiries, please contact

Andro 09162309138
CR 09065880080

Credit: Kin Enriquez (UP Astrosoc associate member)

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About UP Astrosoc…

The  University of the Philippines Astronomical Society (UP Astrosoc) is a non-profit, non-political and non-partisan organization in the University of the Philippines, Diliman established in 1991. UP Astrosoc now resides at the PAGASA Astronomical Observatory inside the UP Diliman Campus in Quezon City.

Sky Lanterns by UP Astrosoc

Send your wishes to the sky this love month,
End February gazing at the night sky.

UP Astronomical Society brings you

Rare Night: Sky Lanterns on the 29th

February 29, 2012 | 8PM

For inquiries, contact Kristine at 09152397942 or email us at upastrosocadhoc2011@gmail.com


UP AstroSoc’s Public Observation of the Celestial Grouping on February 26, 2012

In celebration of the National Astronomy Week (NAW) 2012, the University of the Philippines Astronomical Society (UP AstroSoc) in partnership with the Philippine Society of Youth Science Clubs (PSYSC) invites everyone to a public observation of the celestial grouping of the Moon, Venus and Jupiter on February 26, 2012.

The said event will be at the Sun Deck of the PAGASA Astronomical Observatory in UP Diliman.

Define closeness; see the thin lunar crescent pass close to Venus and Jupiter on the eve of February 26. Observation starts at around 6PM or later. 🙂

Messier marathon begins at 9 PM. Messier objects were discovered in the 18th century. These were listed so that observers using small telescopes would not confuse these with comets


To join the event, please visit its Facebook event page : https://www.facebook.com/events/148142481972887/

Clear skies! 🙂

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Related link: