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

Posts tagged “May 21 2012 partial solar eclipse

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!

* * *
Update:

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.


May 2012 Solar Eclipse

The first solar eclipse in 2012 will be an annular solar eclipse on May 20–21. The term came from the Latin word “annulus,” meaning “little ring”, because the moon will not completely cover the sun during the totality (unlike in a total solar eclipse), but will leave a fiery ring around its circumference.

A telescopic picture of the Sun taken during the annular eclipse of January 15, 2010 from the city of Kanyakumari at the southern tip of India. Image Credit & Copyright: Mikael Svalgaard

Warning: NEVER look directly at the sun through binoculars, a telescope or with your unaided eye.

At its peak, the moon will block roughly 94 percent of the sun’s light.

This potentially spectacular solar eclipse  will be visible from much of Asia, the Pacific region and North America, provided the weather cooperates.

Time table worldwide

The eclipse starts in one location and ends in another, the times below are for visibility for any location on earth.

Event UTC Time Time in Manila
First location to see partial eclipse begins 20 May, 20:56 21 May, 04:56
First location to see full Eclipse begins 20 May, 22:06 21 May, 06:06
Maximum Eclipse 20 May, 23:54 21 May, 07:54
Last location to see full Eclipse ends 21 May, 01:39 21 May, 09:39
Last location to see partial Eclipse ends 21 May, 02:49 21 May, 10:49

Note to Philippine observers: The fiery ring would not be visible in the Philippines. Instead, a partial solar eclipse beginning at sunrise on May 21 will be visible.

Local circumstances of the partial solar eclipse on Monday (May 21) in the Philippines courtesy of UPLB Astronomical Society. Screenshots were taken using Stellarium.

Remember that this spectacular sight can only be safely observed with approved solar filters or by projecting an image of the eclipsed Sun onto a flat white surface.  Look for pinhole effects on the ground (shadows of trees or bushes) or use some another projection viewing method to safely view the eclipsed sun.

The Sun can be viewed safely with the naked eye ONLY during the few brief seconds or minutes of a total solar eclipse.  Even at maximum, the annular eclipse will not cover the brightest parts of the sun. Partial eclipses, annular eclipses, and the partial phases of total eclipses are never safe to watch without taking special precautions. Do not attempt to observe the partial or annular phases of any eclipse with the naked eye. Failure to use appropriate filtration may result in permanent eye damage or blindness!

Tips on how to view the Sun safely

“Filters for visual and photographic use

Acceptable filters for unaided visual observations include: aluminized polyester specifically designed for solar viewing, shade 12 and 14 welding filters, black polymer filters (Thousand Oaks Solar Shield 2000 and Rainbow Symphony Polymer), and two layers of fully exposed and developed silver-bearing black and white film negative. For photographic and visual use, particularly with binoculars or telescopes, acceptable filters include: aluminized polyester specifically designed for the purpose, and Questar and Thousand Oaks T1 and T2 glass filters. The Thousand Oaks T3 filter should be used with extreme care for photographic use only. Not recommended are: metal-coated polyester that is not specifically intended for solar observation, smoked glass, floppy disk media, black colour transparency (slide) film, floppy disk media, and compact disks (because of the inconsistent quality of the metal coating).”

I reiterate that you must protect your eyes at all times with proper solar filters when looking at the sun. However, do not let the requisite warnings scare you away from witnessing this wonderful phenomenon. 🙂 Clear skies!
Recommended links for further information

For those who won’t be able to observe the eclipse from their location, you may still watch via live webstreaming of the event.