MABUHAY! Welcome to the Philippine Astronomical Society's official website.
The first astronomical organization in the Philippines.
A dynamic, harmonious, research/leisure-oriented, nonprofit, non-stock astronomical society that aims to propel astronomy education toward the achievement of scientific excellence among Filipinos. Gives free lectures, public viewings, astrocamps, out-of-town observations as public outreach programs in astronomy and astrophysics.
Newbies to astronomy are most welcome here, as are armchair stargazers and veteran skywatchers. PAS aims to promote astronomy to the Filipinos in a fun yet educational manner.
So come on in out of the cold, and bask in the warmth of your fellow skywatchers! Go ahead, take a seat, kick back, and let your hair and your guard down. Share your astronomical knowledge with the rest of your comrades, and glean more information from them in return. In this website, everyone learns from each other, and everyone is FREE to express their opinions! Because the night sky belongs to EVERYONE!
MABUHAY ANG ASTRONOMIYA SA PILIPINAS!
The Philippine Astronomical Society
PAS in a Nutshell
The official seal of the Philippine Astronomical Society is inscribed in a circle within a larger circle, which is symbolic of the vast outer space that humanity has always been longing to explore and to understand, illustrating the concept of the quantum world within the universe.
The central figure in the seal is a reflecting telescope, symbolizing the continuous quest for scientific knowledge. In front of the focus are three stars, representing Luzon, Visayas, and Mindanao - expressing the vision of entrenching firmly the science of Astronomy in the Philippines.
At the bottom of the telescope is the moon, which symbolizes Man’s first step of its exploration. The top right of this is a spiral galaxy, representing the distant universe and the cosmos, which humans seek to explore. The rope connecting the symbols depicts the unity of common interests, hopes, and desires bound together for the advancement of Astronomy and Astrophysics in the Philippines.
The constellation Virgo holds some of the finest collection of galaxies in the night sky with configurations that makes one marvel at the varying shapes of gravitationally interacting stellar material in the universe. It is not uncommon to find two galaxies interacting together. However, it is not too common to find four interacting galaxies close enough for the scrutiny of amateur telescopes. The interacting group of galaxies NGC 4410, NGC 4410b, IC790, VCC934, and VCC914, a possible fifth interacting galaxy, is one such example found in the upper center of this six-hour image. NGC4410 is a LINER-type galaxy with an active high energy nucleus believed to be a result of accretion of mass by a super-massive black hole at its center. The two larger spiral galaxies below are NGC4411 and NGC4411b.
GOTCHA !!! After two weeks of hit and miss (all because of cloud cover). finally got Comet Panstarrs.................
Imaged at PAGASA Astronomical Observatory, UP, Diliman, Quezon City
"Fans in the northern hemisphere - don't forget to keep an eye out for comet Pan-STARRS over the next few days! It should be easily observable with the naked eye.
Find out how to spot Pan-STARRS in the night sky here: http://oak.ctx.ly/r/2sj5"
The week-long celebration of the National Astronomy Week is over.
I am very thankful and fulfilled for this wonderful experience! This event had contributed a lot in making a difference in the various aspects of my life- it transformed me to someone I never used to be and at the same time it also strengthened my relationship with my co-members.
For me, PAS is not just an organization...it's a FAMILY. Yes, we have our share of eccentricities and disagreements, but the thing is - these help us become more united and more flexible. I'm really proud that I became part of PAS, and I am looking forward to more Astronomical events! Greater things are yet to come!!!
"Coming together is a beginning. Keeping together is progress. Working together is success." -Henry Ford
CONGRATULATIONS, PHILIPPINE ASTRONOMICAL SOCIETY!!!
Some of the Opening Day participants and guests pose for the souvenir group photo in front of the UST Main Building. (Unfortunately, many have left before and after the Awarding Ceremony.) Please check attached link below for more pictures during hte Opening Day. Winners of the different contests and raffle prizes will be posted soon.
The Philippine Astronomical Society will celebrate this year's National Astronomy Week on February 16-23 to be held at the University of Santo Thomas (UST) campus, in collaboration with the UST College of Science and the Samahang Mag-aaral ng Pisika.This year's NAW theme is "Exploring Outer Space, Our Biosphere and Their Interconnections."
Elementary, high school, and college students from all over Metro Manila will compete in different contests: photo-essay (high school); essay-writing (elementary and high school); astro-quiz (high school and college); poster-making (elementary and high school). The contest winners will receive cash awards, trophies, medals, and certificates of appreciation.
The Philippine Astronomical Society will have a medical team to provide immediate assistance to participants, guests, and the public during the Opening Day of the National Astronomy Week on February 16. The medical team is composed of Dr. Clea Mamaril-Serrano, Dr. Lorie Garcia, and Dr. Marissa Resulta.
Please check all other NAW 2013 details in the NAW page of this web for the Program of Activities, UST floor plan for the contests, lectures, etc.
The weeklong PAS NAW celebration is open to the public, and it's free!
Come watch the scientifically and artistically gifted young students compete in this once-a year celebration of astronomy as as a science discipline. (Some photos from NAW 2011 below)
M35 is a beautiful open star cluster in the constellation Gemini. It consists of a loose grouping of dazzling young blue stars. To the lower right is another more distant star cluster, NGC 2158. Its red reddish stars are indicative of its older age and its denser arrangement is almost like a globular cluster.
Please check link for this - http://www.independent.co.uk/news/science/brighter-than-a-full-moon-the-biggest-star-of-2013-could-be-ison--the-comet-of-the-century-8431443.html.
Philippine Astronomical Society on Huntahan: Interpretasyon sa Mayan Calendar
Date posted: Dec 20, 2012 9:48am
A new celestial wonder has stolen the title of most distant object ever seen in the universe, astronomers report.
The new record holder is the galaxy MACS0647-JD, which is about 13.3 billion light-years away. The universe itself is only 13.7 billion years old, so this galaxy's light has been traveling toward us for almost the whole history of space and time.
Astronomers spotted the object using NASA's Hubble and Spitzer space telescopes, with the aid of a naturally occurring cosmic zoom lens as well. This lens is a huge cluster of galaxies whose collective gravity warps space-time, producing what's called a gravitational lens. As the distant galaxy's light traveled through this lens on its way to Earth, it was magnified.
The galaxy MACS0647-JD (inset) appears very young and is only a fraction of the size of our own Milky Way. The galaxy is about 13.3 billion light-years from Earth, the farthest galaxy yet known, and formed 420 million years after the Big Bang. Image taken by Hubble Space Telescope on Nov. 29, 2011, and released Nov. 15, 2012.
CREDIT: NASA, ESA, and M. Postman and D. Coe (STScI) and CLASH Team
The Taurid meteors, sometimes called the "Halloween fireballs," show up each year between mid-October and mid-November, but Nov. 5 to 12 will likely be the best time to look for them this year, based on their peak of activity and the effect of moonlight on viewing conditions.
Initially, on Nov. 5 the moon will be very bright in the gibbous phase, but it will diminish in brightness with each passing night. Before the moon rises — around 10:30 p.m. on Nov. 5, and about 55 minutes later on subsequent nights — some 10 to 15 meteors may appear per hour. They are often yellowish-orange and, as meteors go, appear to move rather slowly.
The name of this meteor shower comes from the way they seem to radiate from the constellation Taurus, the Bull, which sits low in the east a couple of hours after sundown and is almost directly overhead by around 1:30 a.m. local time.
Meteors, popularly referred to as "shooting stars," are generated when debris enters and burns up in Earth's atmosphere. In the case of the Taurids, they are attributed to debris left behind by
Encke's Comet, or perhaps by a much larger comet, which, upon disintegrating, left Encke and a lot of other rubble in its wake.
Indeed, the Taurid debris stream contains noticeably larger fragments than those shed by other comets, which is why in certain years — and 2012 is predicted to be one — this rather elderly meteor stream occasionally delivers a few unusually bright meteors known as "fireballs." [Amazing Perseid Meteor Shower Photos of 2012]
Two streams for the price of one
The Taurids are actually divided into the Northern Taurids and the Southern Taurids.
This is an example of what happens to a meteor stream when it grows old. Even at the beginning, the particles could not have been moving in exactly the same orbit as their parent comet; their slight divergence accumulates with time.
Meanwhile the sun is not the only body gravitationally controlling the particles' orbits; the planets are having subtle effects on the stream as well. As the positions of the planets are constantly changing, the particles pass nearer to them on some revolutions than others, diverting parts of the stream, fanning it out and splitting it. Ultimately, what was originally one stream diffuses into a cloud of minor streams and isolated particles in individual orbits, crossing Earth's orbit at yet more widely scattered times of the year and coming from more scattered directions until they are entirely stirred into the general haze of dust in the solar system.
Dr. Victor Clube, an English astrophysicistand an expert on comets and cosmology, indicated back in 1992 that the Taurid meteor stream contains perhaps a half a dozen full-size asteroids whose orbits place them squarely in the stream.
Clube and his colleagues argue that the Taurids' range of orbits indicates they were all shed by a huge comet, originally 100 miles across or more, that entered the inner solar system some 20,000 years ago. By 10,000 years ago it was parched and brittle. Encke's Comet might actually be the biggest leftover chunk of the parent comet.
Another fireball year?
Encke's has the shortest known orbital period for a comet, taking only 3.3 years to make one complete trip around the sun. Meteor expert David Asher has also discovered that Earth can periodically encounter swarms of larger particles in certain years, and 2012 is predicted to be one of those years.
Maximum rates for the southern branch occur near Nov. 5, while the northern branch peaks near Nov. 12. This year the moon is somewhat unfavorable during the first week of November, but the northern Taurids peak the day before new moon when the sky will be dark.
The meteor showers' two radiants (the points where meteors appear to originate in the sky) lie just south of the Pleiades star cluster. During the next couple of weeks, if you see a bright, slightly tinted orange meteor sliding rather lazily away from that famous little smudge of stars, you can feel sure it is a Taurid.
The year 2005 was a swarm year, with many exceptional fireballs seen, especially along the U.S. East Coast on Halloween evening (Oct. 31), when fireballs as bright as the full moon were witnessed.
Will 2012 offer a repeat performance? Only by going out and viewing this display will we know for sure!
Editor's note: If you snap an amazing photo of the 2012 Taurid meteor shower and want to share it with SPACE.com, send photos, comments and location info to SPACE.com managing editor Tariq Malik at: email@example.com.
Joe Rao serves as an instructor and guest lecturer at New York's Hayden Planetarium. He writes about astronomy for The New York Times and other publications, and he is also an on-camera meteorologist for News 12 Westchester, New York.
PAS held an overnight Board planning session at Subic, Pampanga last October 12-13, 2012 in preparation for the National Astronomy Week 2013 and for a calendar planning of 2013 activities.
All Board members were present - Ian Allas, Hernan Dizon, Camilo Dacanay, Ed Von Delelis, Victoria Evarretta, Jenny Gutierrez, Jake Irlandez, Leo Manosca, Margie Parinas, Josuel Racca, and Ronald Tanco. The session was also graced by the presence of Bam Sachez (Membership Committee Chair) and Lamer Morales.
Please see all other pictures in the Subic Trip album at the Photo Gallery Section.
PAS on Astronomy Education
PAS and National AStronomy Week
The Philippine Astronomical Society and the University of Santo Thomas College of Science will hold a public observation of the moon during the event "International Observe the Moon Night on September 22 from 6pm to 9 pm to be held at the University campus grandstand after the PAS monthly meeting.
Viewing is FREE. Telescopes will be available for the viewing. LET'S OBSERVE AND EVALUATE EVERY FEATURE OF THE MOON!!
It happens only once in a lifetime. The next is in 2117. So who would miss a lifetime event like the Venus Transit of June 6, 2012. It has been most awaited for, most researched on, most wrote about, and most planned for all over the world.
What Is the Transit?
A transit is when one object in the sky passes in front of another. In this case, we’ll see Venus move across the Sun’s face. Think of it as a mini-eclipse.
Venus orbits the Sun closer in than we do, taking about 225 days to circle it once. We don’t see a transit every time, though, because its orbit is tilted slightly (by about 3°) to the Earth’s, so
Partial Lunar Eclipse Observation
Sofitel Luxury Hotels Philippine Plaza Manila
ON INVITATION by Sofitel Hotel
A PAS OUTREACH ACTIVITY
The Philippine Astronomical Society
The Gethsemane Prayer at Montalban, Rizal became the venue for the PAS April monthly meeting, public outreach stargazing, and Lyrid Meteor observation held on April-22, 2012.
Please check the website's Photo Gallery for the album of photos re this event. Below is also the Facebook link for the same, which includes the photo captions.
Supermoon, May 5, 2012,: 7:48:48, 99.3 Full Moon ("moontaged" with passing clouds and clear sky). Taken at Muntinlupa City, Philippines.
Milky Way taken under the dark skies of Montalban, Rizal. Canon 450D, 50 mm at f2.8, ISO400, 150 sec exposure (single frame). Too many stars and deep-sky stuff!! This is my best Milky Way photo to date :)
NGC 4438 and smaller NGC 4435 is a pair of interacting galaxies in Virgo called "The Eyes". Powerful gravitational forces distort the symmetry of the stars, gas, and dust in the larger and peculiar galaxy, NGC 4438, which is also known as Arp 120. Its active nucleus is believed to harbor a black hole. Numerous other more distant background galaxies are also captured in this four- hour long exposure.
M8, the Lagoon Nebula, is a cloud of ionized hydrogen gas some 50 light-years in diameter, located about 5000 light-years away. It is a region in space where new stars form. To the east of the nebula is the open cluster NGC 6530, also visible in this photograph. Sky-Watcher 100 ED 4 in f/9 refractor, Kenko NES mount, Canon 450D DSLR, 2 x 240 sec exp, IS0 1600. April 6, 2012, Camarines Norte, Philippines.
Saturn is just a week away from opposition and has grown to 19 arc seconds at the equator. Sharp details were elusive with mediocre seeing but large features are nonetheless captured. The rings continue to tilt toward Earth.
Photo below by Anthony Urbano taken at PAGASA Observatory March 15, 2012.
Photo above by Margie Parinas on February 22 taken at De La Salle University after the NAW Symposium.
Venus and Jupiter have been dancing toward each other in the night sky for months, and they'll finally come together this week in a dazzling show for skywatchers.
Beginning tonight (March 12), the two brightest planets in the sky will be so close together that you'll be able to block both of them out with a few fingers held at arm's length. The celestial action peaks Thursday (March 15), when Venus and Jupiter line up in what's known as a planetary conjunction.
Venus-Jupiter conjunctions are fairly special events, occurring roughly every 13 months. And this one should be the best conjunction for several years to come for viewers in the Northern Hemisphere, experts say, because the two planets will be visible for so long in the evening sky. At mid-northern latitudes on Thursday, the pair should blaze bright over the western horizon for about four hours after sunset.
Though Jupiter is about 11 times wider than the roughly Earth-size Venus, Venus shines much more brightly than the gas giant from our perspective — about eight times more brightly this week, in fact. [Video: Jupiter & Venus Loom Large] (Photo above by Margie Parinas, PAS)
This year's NAW whole-week celebration on February 18-25 was a blast!
The Philippine Astronomical Society together with the National Museum Planetarium, Samahang Mag-aaral sa Pagpapaunlad ng Pisika, NIDO Science Discovery Center, D Great Rovers, and Sky Explore pooled resources to fuse the National Astronomy Week celebration into a big bang.
Please check the Photo Gallery section for six different albums of pictures during the Opening Day Program/contests on February 18 at the Planetarium, Public Symposium at De La Salle University on February 22 sponsored by the DLSU Physics Society, and the Closing Program on February 25 at NIDO Science Discovery Center.
Details to follow. Results of all contests, the master list of participants, etc. will soon be posted at the NAW 2012 page. Certificates of appreciation/participation for all schools and participants will similarly be delivered to the respective participating schools as soon as available. (Photo below by Brian Joseph)
Comet Garradd C 2009 P1 is just a few days from closest approach to Earth. It glows at magnitude 7 and is easy to detect in a pair of 10x50 binoculars. The comet is quite extensive and easily spans over two degrees of sky or four full moon widths. (Imaged March 1, 2012)
As part of their annual Physics Week, the Ateneo League of Physicists hosted a stargazing activity last February 3 as facilitated by the Philippine Astronomical Society.
Participants first attended a lecture by Engr. Camilo Dacanay and were later treated by Engr. Ronald Tanco and Anthony Urbano with telescopic views of the moon, the planets Venus, Jupiter, Mars, and Saturn, and some star-hopping with the constellations.
The Ateneo League of Physicists with Ronald Tanco and Anthony Urbano.
Photographing the moon and the Orion nebula using a telescope.
Viewing the moon and planets (Jupiter, Mars, Saturn, and Venus)
Moon image taken by Moses Elijah Coriage using a Canon 500D mounted directly to a telescope.
Image of M42 ir the Orion nebula taken by Moses Coriage using a DSLR camera mounted to a telescope.
NGC 474 is a classic shell galaxy interacting with its smaller neighbor NGC 470. This strikingly unusual galaxy is also listed as ARP 227 in Halton Arp's Catalog of Peculiar Galaxies.
I was inspired to attempt imaging it after discovering an earlier image by Mischa Schrimer http://www.astro.uni-bonn.de/~mischa/gallery_ccd/ngc474.html. The evolution and mechanics of galaxy shells is well expounded on in the excellent work of Ken Crawford in collaboration with professional astronomers http://imagingdeepsky.com/Galaxies/NGC7600/NGC7600.htm. Click to add text, images, and other content
This is the latest from the most expensive and largest sub-millimeter telescope located 16,000 feet high in the driest and clearest observing site on the planet. Check link below.
A 36-min exposure of Comet Garradd C2009 P1 using a 16-inch scope and capturing its color as well. Imaged July 23, 2011 at Stardust Observatory.
A 10-min exposure shows a southward pointing fan-tail below a distinctly bright nucleus and coma. Garradd is around 45 degrees above the eastern horizon by 11pm and is easily visible even with small telescopes. It is currently around magnitude 8.5. It will steadily brighten in the coming months and is expected to reach magnitude 5 in January 2012.
New Supernova in M51
June 3: A new supernova in M51 was discovered by A. Riou and confirmed by several sources, including the Palomar Transient Factory (Silverman et al., ATEL 3398). It is located at 13:30:05.08 +47:10:11.2 J2000 and has a magnitude of about 13.5. Nice images of the supernova can be found at: http://6888comete.free.fr/fr/imageSN.htm PTF also obtained a spectra from Keck, indicating that this is a type II supernova with a relatively blue continuum with P-Cygni profiles in the Balmer series. This is a unique event, because it occurs in a galaxy that is imaged almost constantly. There must be many photos available that show the rise of this SNe, so the data-mining opportunity is obvious. It is transiting at local twilight and should be observable for northern hemisphere observers for several months. A new APASS sequence should be uploaded soon. We recommend taking nightly monitoring images in B and V for CCD observers, along with visual estimates, until the supernova is no longer visible. Here is an excuse to take the 10 millionth image of M51! (AAVSO - American Association of Variable Star observers)
This is an image of a portion of the Eta Carina Nebula complex or NGC 3372. Superimposed on which is NGC 3324 also called the keyhole nebula which was discovered by John Herschell in 1838. This appeared to him at the time as a keyhole shaped object hence the name.
The bright star with the spikes is Eta Carina which is now believed to be a binary (and possibly a triple) star system. At least one of them is a super-massive star, one of the few known in our galaxy. In the 1840's this star brightened in what is now called a "supernova-imposter" event. In other words the star blew out its outer shell and survived, for now.
It is interesting to note that the Boorong aboriginal people of northwestern Victoria, Australia witnessed the event and incorporated it into the Collowgullouric War according to research done by MacQuarie University astronomers Duane Hamacher and David Frew.
The Eta Carina star system is about 8,000 light years away and is still unstable and will go supernova one day.
This image is taken with a Canon 600D and a 150mm Newtonian under the glare of a full moon on the 17th of May 2011 from southeast Queensland, Australia.
Skywatching, 1st revised edition by David H. Levy, 1994.
Journal of Astronomical History Heritage, Volume 13, Issue 3 (November 2010).
NGC 4302 and NGC 4298 is a pair of spiral galaxies in Coma Berenices. Though they seem close to each other they do not appear to be gravitationally interacting. Quite likely, one is just nearly in the foreground of the other.
I decided to image M97 again to see how much more new details could be coaxed with a larger aperture, more sensitive camera, and longer total exposure. A 3nm narrow band Oxygen III filter was also used to reveal an extremely faint outer bubble surrounding this expanding ball of stellar material located southeast of Merak, one of the two stars in the Big Dipper that point to the North Star. A total exposure time of 12.6 hours was used for this image compared to 3.5 hours for an earlier image taken four years ago.
Coordinates: 11h 15' +54d 57'; Date imaged: May 6, 2011; Lens: N16 f/4.5; Camera: ST10XME; Exposure: 12.6 hours; Filter:Astrodon L:R:G:B:OIII 130:90:90:120:330; Mount: Losmandy Titan; Location: Stardust Observatory :
I was quite surprised when not just two but three gas shells were captured after 6 hours of hydrogen alpha exposures in this image of planetary nebula NGC2438! I decided to do a long Ha exposure after I noticed hints of a second outer shell in a red POSS2 image. The magnitude 10 planetary nebula is in the foreground of M46, a beautiful open star cluster in the constellation Puppis.
This Milky Way Galaxy image was taken during the 2011 Philippine Messier Marathon Open on March 26 under the dark skies of Caliraya, Quezon. Canon S3IS, f/2.7 at ISO 200, tracking for 150 seconds.