SPACE definitely matters.
UP ASTRONOMICAL SOCIETY will introduce you to a space beyond your imagination.
COME JOIN UP AstroSoc on its platinum year and experience a night life in wonderland. 😀
Visit the UP AstroSoc Application booth at the AS Walk (UP Diliman) from July 12-15, 2011.
Applicants’ orientation is on July 15, 2011 – 6pm
Venue: Moon Deck, PAGASA Observatory (near College of Home Economics)
For inquiries, contact Andro 09159739014 or Lei 09279748655
Ad astra per aspera!
I began my preparation to observe the June 16, 2011 Total Lunar Eclipse as soon as I’ve learned about it several months ago.
It was a relatively rare opportunity to observe a Total Eclipse of the Moon — not to mention that the duration of totality of this eclipse will be one of the longest in 100 years (totality lasted for 100 minutes, from 3:22 am until around 5:02 am PHT).
I immediately checked the eclipse circumstances available in the NASA eclipse website and estimated the location of the Moon for each phase using Stellarium, so as to choose the best place to observe the event. I also reviewed the previous photos I’ve taken to see which places have a clear view of the southwest sky — the region where the Moon was mostly located during the course of the whole eclipse event. After considering a few sites, I came down to only three choices — the PAGASA Observatory in UP Diliman, a place along San Miguel by the Bay and at the Seven Suites Hotel Observatory in Antipolo.
Dropping the other two choices, I observed at the Seven Suites.
Since I still have a class to attend the following morning, observing at San Miguel by the Bay was the least good option. It surely was a nice place to observe as it has a very clear western horizon (which will enable me to catch a glimpse of the eclipsed moon setting at the bayside), but traveling would be a bit of a hassle for me because it was too far. The most convenient choice was actually to observe at the PAGASA Observatory. It’s just a walking distance away from my college and most of my orgmates in UP AstroSoc were there, too. However, I was worried that the buildings surrounding the observatory might block the view of the Moon when it gets too low during the last phases.
Through Mr. Ramon Acevedo or Kuya Ramon — an alumnus of my astronomy org UP AstroSoc — the manager of Seven Suites allowed me and a few more orgmates to observe from Seven Suites for free 🙂 Thanks, Kuya Ramon!
Seven Suites is the first and only hotel observatory in the Philippines. As it is situated along the hillside route of Sumulong Highway in Antipolo City (not too far away from UP Diliman), it offers a breathtaking view of Manila by night — a stunning view of the metropolis, its city lights and the dazzling night sky. It also houses a 12”diameter Dobsonian which is the fourth largest telescope in the country.
We arrived at Seven Suites at about two hours before the start of the penumbral eclipse. Upon reaching the roof deck, we marveled at the awesome cityscape just below us.
Despite the rainy weather forecast, thank God it didn’t rain a bit the whole night. Only a few patches of clouds could be seen floating amid the moonlit sky.
A few minutes past midnight, a group of mediamen from a local TV Network came to join us to cover the event. Someone from GMA contacted me earlier that day via Twitter for an interview regarding the eclipse. He told me that he learned about me after seeing a post which linked my astro blog. He further asked me where I will be observing the event and I told him of my plan and the time of the eclipse . I also added that another group of my orgmates in UP AstroSoc will also be observing the event from the PAGASA Observatory. After our conversation, he said that they will send a group there. And they did. Kuya Ramon was also notified of their coming.
I shied away from the camera when they started doing the interview. Any how, my other orgmates were also there and they answered the interview questions adequately. 🙂
All of us were excited to witness the eclipse. But before it started, a bright fireball zoomed in to our view. It came from the northeast direction, near the Summer Triangle so we guessed that it could be a June Lyrid.
At the time of the penumbral eclipse, no visible changes in the moon’s brightness can be easily recognized until it slowly become dimmer a few minutes before the umbral phase. By about 2:30 AM, a small part of the Moon on its upper left limb was already being covered by the Earth’s shadow. This chunk grew larger and larger after several minutes until finally only a small sliver of the Moon remained visible. The Moon entered totality at 3:22 AM. Just before the light on the Moon totally disappeared, an apparent reddening of the lunar disk took place. It became more and more obvious to the eye until the whole lunar disk was transformed to a blood-red orb hanging above among the stars. It was a breath-taking view.
I also created two montage composed of the images of the Moon during different stages of the eclipse. In the second photo, the images were taken by about 5-10 minutes apart.
Totality ended at 5:02 AM. Unfortunately, the fifth contact (end of the partial eclipse) and sixth contact (end of the penumbral eclipse) could not be observed from the Philippines since the moonset was at 5:30 AM.
Here is a time-lapse video of the setting eclipsed Moon which I made using Windows Movie Maker. The transition of the images were quite slow because each frame can only be separated by a minimum of 1 second when using WMM. Can anyone suggest a better video editing software (preferably with a small size on disk) that can be used by amateurs?
Only a small part of the Moon remained visible as it continuously sank near the horizon. A few minutes before sunrise, we noticed another nice atmospheric phenomenon — anticrepuscular rays.
Anticrepuscular rays are similar to crepuscular rays, but seen opposite the sun in the sky during sunrise or sunset.
We packed up and prepared to leave at around 6:00 in the morning. I was starting to feel tired during then but I resisted sleepiness as I still need to attend my class. One of us even said that we were already like zombies during that moment because of sleep-deprivation. Haha!
Our efforts didn’t go fruitless, anyway. Seeing the Red Moon was truly a priceless experience. Besides, I was also happy that I was finally able to set foot in Seven Suites after a few years. Yes, I’ve been planning to visit the place ever since. but some circumstances seemed to hindered me most of the time.
All photos were taken using Nikon D3000 DSLR camera. Thank you, Nicky for lending me your camera. 🙂
My fellow UP AstroSoc members who observed at the PAGASA Observatory were also successful in observing and documenting this event. God is really great, we were not clouded out. 🙂 Like us, they also got interviewed during the event.
The news reports including the interviews came out later that day. The person from GMA who contacted me texted me that the video coverage was already being aired. I wasn’t able to catch it on the television but it was now available online. You can watch the video of the interview from here.
The lunar eclipse was the talk of the town during the whole day. Eclipse pictures, videos and articles flooded the Internet. Moreover, Google also featured the lunar eclipse that just took place through its regular Google Doodle. So if you happened to take a peek at your Google homepage last June 16, you should have seen a playable lunar eclipse photos, like the one below:
This “live” doodle showed a live feed of the lunar eclipse from images from robotic telescope service Slooh. During the eclipse, visitors to Google.com can see a dial at the bottom of the image moving left to right, going through the various stages of the eclipse, before settling on the current feed.
On the other hand, clicking on the doodle will take you to the top search results about the 16 June Total Lunar Eclipse. Some friends told me that the link to my blog about the visible eclipses in the Philippines in 2011 was on the 4th spot. 🙂 And indeed, I got a lot of site visitors during that day. Thanks to all who dropped by and left their wonderful comments.
‘Til the next Total Lunar Eclipse on December. 🙂 Ad astra!
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!
Last April, I was invited along with some fellow UP AstroSoc members to join the 2011 Philippine Messier Marathon organized by the Astronomical League of the Philippines (ALP). The event was held on the shore of Lake Caliraya at the Eco Saddle Campsite in Laguna.
It was a really nice opportunity for an amateur astronomer like me to be part of an event like this – a trip away from the light polluted city to observe in perfectly dark skies. However, I found it hard to decide whether or not to join the observation because I was also supposed to attend the General Assembly of Student Councils (GASC) in Davao City. My heart was torn between my obligation and mission as a student leader and my love for the heavens.
Fortunately, the circumstances changed just in time for me to be able to join in the overnight observation.
I would finally see the Milky Way for the first time in all its grandeur.
And I DID! 🙂
I was lucky to have with me a borrowed DSLR camera to capture images of the mesmerizing dark skies above Lake Caliraya. From the northern hemisphere, the best views of the Milky Way are in the summer -with the brightest parts in the southern sky.
It was a very cold and windy night by the lake. Dew kept forming on my laptop, and every gust of wind threatened to topple my camera and tripod. Nevertheless, I stayed in the cold to take images. Such is the life of an amateur astronomer but it is always worth the effort. 🙂
Since I cannot take a single picture showing the expanse of the Milky Way, what I did was I took several shots of it and stitched those images together in Photoshop to produce a wide field photo.
I must admit that I still lack the skill in doing long-exposure photography. It was my first time to do that, haha. Every image that I took was a product of trial-and-error attempts, but thanks to the incredibly dark skies of Caliraya, my fellow orgmate’s useful tips, and the opportunity that God gave me, that I was able to produce my first images of our home galaxy. 🙂
I probably have to practice more on astrophotography and read tutorials to prepare for the next opportunity of taking pictures of the Milky Way. Hopefully, I could have my own DSLR camera (plus some real decent astro equipment) by that time. *I still have to save a lot of money for this.* 😛
Ad astra per aspera!
The UP Astronomical Society (UP AstroSoc) are raising funds for its upcoming projects.
You can help the organization by supporting its Astro Shirt Sale. 🙂
For only 150php, you can already have a cool astro shirt just like the ones below.
You may choose from these 3 different designs. There several shirt sizes available.
To place your order, please contact the numbers indicated in the publicity poster, or visit UP AstroSoc’s Facebook Fanpage.
To the stars! 🙂
*Shirts are available in the Philippines
April’s Moon reached its full phase last April18 at 10:45 AM PST (2:45 AM UT).
During Palm Sunday in the Philippines last April 17, 2011, I and some friends spotted the 99.5% full Moon rising at dusk. It looked like a big ball of cheese hanging up in the sky along a street named Galaxy Street in Panorama, Marikina City.
It seemed larger near the horizon during moonrise than it does while higher up in the sky.
According to EarthSky.org, this is the first full moon of springtime for the northern hemisphere. We in this hemisphere call it the Pink Moon, to celebrate the return of certain wild flowers. Other names are Egg Moon, Sprouting Grass Moon, or Easter Moon.
The first Full Moon of spring is also usually designated as the Paschal Full Moon or the Paschal Term. In most years, the Christian celebration of Easter is observed on the Sunday after the Paschal Full Moon. If the Paschal Moon occurs on a Sunday, Easter is the following Sunday.
For those living in the Southern Hemisphere, the autumn counterpart of the Paschal Full Moon is called Harvest Moon, the closest full moon to the autumnal equinox.
What sets the Harvest Moon apart from the others is that instead of rising at its normal average of 50 minutes later each day, it seems to rise at nearly the same time for several nights.
However, in direct contrast to the Harvest Full Moon, the Paschal Full Moon appears to rise considerably later each night.
Here are the other photos taken by me and two of my fellow UP AstroSoc folks, Andre Obidos and Bea Banzuela.
*First 2 photos — Panasonic Lumix DMC-FS7 10.1 MP Digital Camera
*Wide angle photos — Canon PowerShot SX20 IS
All images can be clicked to see high-res versions.
Last March 17, 2011 , the University of the Philippines Astronomical Society (UP AstroSoc) set up at the PAGASA Astronomical Observatory in UP Diliman to observe the occultation of the 3.3 magnitude star, Omicron Leonis (or Subra) by the 92% illuminated waxing gibbous Moon.
This event was headed by UP AstroSoc associate member and alumni, Anthony Urbano of EtenyWorks. Kuya Eteny, as the members fondly call him, was experienced in observing occultations.
During this observation, he brought his 6″ Newtonian Equatorial Reflecting Telescope (NERT) with a self-designed home-built clock drive attached to the telescope’s equatorial mount. To record the occultation event, a Canon S3IS connected to a laptop was mounted to the telescope’s eyepiece by means of a fabricated camera adapter. This modified camera can show it’s system time on its on-screen display. According to Kuya Eteny, the default precision of the on-screen timer is limited to 1 second, but a patch, currently made available only for Canon S3IS, increased the clock’s precision to 1/100 of a second — the maximum precision of the camera’s built-in clock.
You can learn more about this improvised clock drive project, the camera modification and the rest of observation set up by visiting his site where he posts a lot of cool stuff about observation and instrumentation. His inventions are most fit for those amateur astronomers interested in modifying their own telescopes and cameras especially for the purpose of doing astrophotography. 🙂
The event was from 10:20 UT (ingress) and ended at 11:10 UT (egress). Although it can be classified as a ‘bright star occultation’, the light coming from the target star wasn’t bright enough to pass through the thick clouds during the entire event. By around 11:50 UT, we decided to packed up since there was still no trace of the star near the Moon.
When the Moon passes in front of a background star during occultations, the shadow of the Moon cast by the star sweeps across the Earth. When the leading or trailing edge of the Moon’s shadow crosses an observer, the observer sees the star “disappear” or “reappear”. These events are usually very sudden, and timing the instant of occultation is an important astronomical measurement.
But why is it important to observe lunar occultations?
- Observing lunar occultations is important because the results improve our knowledge of the position and motion of the Moon. For example, when you time the disappearance of a star behind the edge of the Moon to 0.1 second accuracy (a value easily attainable), you are actually fixing the position of the Moon’s edge in space to an accuracy of about 80 metres. i.e. you are making a measurement with a precision of only 80 metres over a distance of 384,400 km. (This is one of the most accurate measurements an amateur observer can make in any branch of science!)
- Combining many such measurements of the Moon’s position over a long time gives astronomers new information about the Moon’s motion and orbit. For example, total occultation observations have shown that the Moon is spiralling away from the Earth at a rate of a few centimetres per year.
- Total lunar occultations have also been used to provide valuable information about star positions, about the hills and valleys on the edge of the Moon, and to discover new double stars.
Aside from occultations by the Moon, there were also Planetary Occultations and Asteroid Occultations. Just as the Moon passes in front of background stars, so too do planets and minor planets (also called asteroids).
Planetary occultations are occultations of stars by the passing of a planet in front of it. However planetary occultations occur less frequently than lunar occultations because the planets appear so much smaller in our sky than does the Moon. Nevertheless, observing occultations of stars by planets has yielded some stunning discoveries – for example, the rings of Uranus, and the atmosphere around Pluto.
On the other hand, Asteroid Occultations are occultations of stars by the passing of an asteroid in front of it. Asteroid occultations can occur anywhere on the surface of the earth. A few naked eye stars have been occulted during the past 20 years, but most occultations are of quite dim stars typically between magnitudes +9 and +12. An occultation might occur at any time of night, on any day of the week. More and more fainter asteroid occultations are being predicted, so that it is likely that at least 5 events will likely cross your area in the coming year.
While occultations of bright stars by major planets are very rare, occultations by asteroids are a little less so. This is not because any one asteroid has a greater chance of passing in front of a star. Rather, it is because there are so many more asteroids to choose from!
Anyway, asteroid occultations are the only way — apart from spacecraft missions to asteroids and radar observations of nearby objects — to determine the approximate size and shape of those bodies and are, of course, much cheaper.
If, as an amateur astronomer or telescope owner, you would like to be part of history, contribute something relevant to the study of astronomy, or would love to see sights that few have witnessed, then occultations are the thing for you. The occultation process offers discovery and research. It is possible for amateur astronomers to discover new companions of stars, help to improve the polar diameter of the sun and moon, identify the existence of possible satellites orbiting asteroids, to improve knowledge of heights of lunar mountain peaks and depths of valleys in the polar regions, determine corrections to ephemeris errors and assess star position errors, improve knowledge of the shape and sizes of asteroids, and more through occultation science. It does not matter where you live in the world. If you have access to a computer and possess a telescope of at least 4-6 inches, know your geodetic position either from GPS or a good topographic map, have a source of time signals and tape recorder, you can make your own observations of these rare and critical events.
The IOTA web site contains predictions that are updated frequently.
To be able to observe and correctly record an occultation event, you should first have knowledge to find your way about the sky. Most stars that are occulted by asteroids have average apparent visual magnitude of 10.
The program Win-OCCULT, authored by David Herald in Australia, provides accurate predictions of all types of occultations and related phenomena. You can obtain a copy of Win-OCCULT by downloading it from here.
Good luck! 🙂
This is a long-overdue post. 😛 I was really busy during the past few weeks so I never found enough time to write a blog. Anyway…
Last February, the Filipino astronomy community celebrated the 18th National Astronomy Week, the theme for which was “Astronomy Transforming the Culture of Learning Toward Nation Building”.
As part of this major celebration, the University of the Philippines Astronomical Society (UP AstroSoc) organized two public observation events based on the concept of ‘Sidewalk Astronomy’ last February 25 at the Quezon Memorial Circle and last February 27 at the Rizal Park.
Sidewalk Astronomy refers to the activity of setting up telescopes in an urban setting for a profit or non-profit basis as an entertainment or for public education. With the coming and growth of organized amateur astronomical groups, sidewalk astronomy has become associated with public education about astronomy via free public viewing for anyone who wishes to look through the telescope.
It’s like bringing astronomy to as many people as possible through public observations. 😀
Both events started at 6:00 PM. Even though the sky was a bit cloudy throughout that week and light pollution is a huge concern when observing in urban areas, we were still lucky enough to catch glimpses of the celestial objects like Jupiter, Saturn, bright Sirius, the Pleiades and the Orion Nebula through our telescopes. Unfortunately, the Moon – our favorite viewing target – did not rise until past midnight so we were not able to see it.
During the last public viewing at the Rizal Park, there were a lot of people who came by to peek through the telescopes. Most of them were families spending time together at the park. At first, it was a real challenge keeping the crowd – especially the kids – from bumping the telescopes. Everyone was too excited. 😀 Nonetheless, we soon were able to make the viewing more organized so that everyone had a chance to peek through the telescopes.
Some of my fellow orgmates also gave short lectures on skygazing using Stellarium and astronomy books to those waiting in line.
It was fun to see people enjoying the view of the night sky. 🙂 I suddenly realized that I so love the job of promoting astronomy with many people especially to the young ones; hearing about how amazed they are while looking up the sky is truly priceless. 🙂
It eventually become cloudier as the night went on. As it was already late and there was almost nothing that could be seen above except thick grey clouds, we decided to end the activity at around 11:00 PM.
The event was enjoyable! 🙂 To us, it was a really memorable way of capping off the celebration of the National Astronomy Week in the Philippines.
To my fellow amateur astronomers, I suggest that you try sidewalk astronomy, too. I have found it to be a truly rewarding experience. People are very appreciative of the effort that I and my orgmates have given and I also made new friends along the way while having a great time.
Thank you to everyone who joined us in this event, especially to RTU Astronomical Society and cheers to those organizations who also held their events for this year’s NAW celebration.
May the goal of sharing the night sky to everyone continuously unite us all.
Ad astra per aspera! 🙂
* * * * * *
Photos by Julee Ann Olave and Ana Geronimo of UP AstroSoc
This image was taken during UP Astronomical Society‘s free public viewing of the largest full moon at the UP Diliman Sunken Garden.
Thanks to Kuya Anthony Urbano of EtenyWorks for letting us take pictures through his 6″ NERT!
The Moon was ~14% brighter and bigger at the time of this event. Thin clouds blanketed the lunar disk during this night but we were still lucky to catch a glimpse of this celestial beauty.We even saw a 22 degree halo and a colorful lunar corona circling the Moon at the same time.
Saturn was also there within the halo and there were contrails, too left by a passing aircraft.
Thanks to everyone who dropped by. ‘Til next time 🙂 Ad astra per aspera!
“The sky is the ultimate art gallery just above us.” ~ Ralph Waldo Emerson
[Some photos were grabbed from Nico Mendoza and Julee Olave 🙂 Used with their permissions]