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

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Moon, Mars and Leo – Feb. 8, 2012

Mars in the eastern sky at 9:51 pm | Quezon City, Philippines

We were sitting on one of those weird benches surrounding the trees in the open-air space of UP-Ayala Technohub after having a rewarding dinner when I noticed a red-orange star in the eastern sky infront of us. My brain told me that, based on its brightness and location it had to be Mars.  It was hardly recognizable at first because the waxing gibbous moon was shining close to it. Moreover, we were situated in a very light-polluted area that my eyes were struggling to see those faint celestial objects near the horizon.

The red planet is back in the eastern sky at nightfall on these evenings. It is now in fact, one of the brightest “stars” (around -0.9 mag) in the night sky. It is growing even brighter and more prominent, especially towards the end of the month as it comes close to opposition to the Sun and its nearest pass to Earth.

Moon, Leo and Mars

Mars started to retrograde (move westward) toward the star Regulus in the constellation Leo last January 24. That happens whenever Earth is about to pass between the sun and Mars, which will happen on March 3, 2012. Mars has been brightening ever since retrograde motion began.

By the end of February, Mars will rise only 20 minutes after the Sun sets, so it will be easily seen by the time the sky darkens and will shine all-night long. By then Mars will have brightened to magnitude -1.2, nearly as bright as Sirius.

Notable Celestial Events in 2012

This year comes with its share of many remarkable skywatching events that we can participate in.  The most important is the rare transit of Venus across the face of the Sun in  June 2012. The next time this will occur again is in 2117. We have the unique opportunity to observe this. (A note to Philippine observers: We are in a good location for this event!)  Moreover, there’s also the Mercury elongation in February, Jupiter-Venus conjunction on March 13-15, the solar eclipses on May 21 and November 14 and  our favorite annual meteor showers.

The list below also contains some tips for Philippine observers.

Clear skies and happy observing! :)

February 20 – March 12 :  Best Chance to see Mercury

The planet Mercury will be far enough from the Sun’s glare to be visible shortly after sunset. Mercury will reach greatest elongation from the Sun on March 5, reaching a relatively bright magnitude of about -1. This will be your best chance to see the planet this year.

February 26 : Moon, Jupiter and Venus at Dusk

Look westward after sunset to see the moon and the dazzling planets Jupiter and Venus lighting up the western sky.

Moon, Venus and Jupiter | 6 pm | Manila

March 3 : Mars at Opposition

The red planet will be at its closest approach to Earth and its face will be fully illuminated by the Sun. This is the best time to view and photograph this planet. Mars will be an imposing naked-eye sight, shining at magnitude -1.2, just a bit dimmer than Sirius, the brightest star, and will be visible in the sky all night long.

March 14 : Conjunction of Venus and Jupiter

The two brightest planets in the sky will be within 3 degrees of each other in the evening sky. On March 25 and 25, the crescent Moon will be near the two planets, creating a dazzling evening spectacle.

April 15 : Saturn at Opposition

The ringed planet will be at its closest approach to Earth and its face will be fully illuminated by the Sun. This is the best time to view and photograph Saturn and its moons.

April 21, 22 : Lyrid Meteor Shower

The Lyrids are an average shower, usually producing about 20 meteors per hour at their peak. These meteors can produce bright dust trails that last for several seconds. The shower usually peaks on April 21 & 22, although some meteors can be visible from April 16 – 25. With no moon to get in the way this year, this really should be a good show. Look for meteors radiating from the constellation of Lyra after midnight.

*April 2012 is Global Astronomy Month!

May 21 : [Annular] Solar Eclipse

The path of annularity will begin in southern China and move east through Japan, the northern Pacific Ocean, and into the western United States. A partial eclipse will be visible throughout parts of eastern Asia and most of North America. (NASA Map and Eclipse Information) (Note: In the Philippines, we will be able to see a crescent sun at dawn.)

Partial Solar Eclipse | 6am | Manila

June 4 : Partial Lunar Eclipse

The eclipse will be visible throughout most of Asia, including the Philippines  Australia, the Pacific Ocean, and the Americas. (NASA Map and Eclipse Information) In the Philippines, we can observe this event as an eclipse at dusk, meaning we will be able to see an eclipsed moon rising.

June 4 Partial Lunar Eclipse | 7 pm | Manila

June 6 : Transit of Venus Across the Sun

This extremely rare event will be entirely visible throughout most of eastern Asia, eastern Australia, and Alaska. A partial transit can be seen in progress at sunrise throughout Europe, western Asia, and eastern Africa. A partial transit can be seen in progress at sunset throughout most of North America, Central America, and western South America. The next transit will not take place until the year 2117. (NASA Transit Information | NASA Transit Map)

Local circumstances for Philippine viewers

Venus transit of the Sun in June, 2004. Photo by Anthony Ayiomamitis.

July 15 : Moon, Venus and Jupiter near the Hyades and the Pleiades Star Cluster

See the three brightest objects of the night sky next to the Pleiades and the Hyades open star cluster in Taurus.

Moon, Venus and Jupiter | 6 am | Manila

August 12, 13 : Perseids Meteor Shower

The Perseids is one of the best meteor showers to observe, producing up to 60 meteors per hour at their peak. The shower’s peak usually occurs on August 13 & 14, but you may be able to see some meteors any time from July 23 – August 22. The radiant point for this shower will be in the constellation Perseus. The near last quarter moon will be hanging around for the show, but shouldn’t be too much of a problem for a shower with up to 60 meteors per hour. Find a location far from city lights and look to the northeast after midnight.

October 5 : Moon-Jupiter Conjunction

The King of the Planets and the crescent moon will reunite for a close celestial pairing. Check the eastern sky around midnight to spot these two objects that are less than one degree apart!

Moon and Jupiter at 11 pm | Manila

October 21, 22: Orionid Meteor Shower

The Orionids is an average shower producing about 20 meteors per hour at their peak. This shower usually peaks on the 21st, but it is highly irregular. A good show could be experienced on any morning from October 20 – 24, and some meteors may be seen any time from October 17 – 25. The first quarter moon will set by midnight, leaving a dark sky for what should be a good show. Best viewing will be to the east after midnight. Be sure to find a dark location far from city lights.

November 13 : Total Solar Eclipse

The path of totality will only be visible in parts of extreme northern Australia and the southern Pacific Ocean. A partial eclipse will be visible in most parts of eastern Australia and New Zealand. (NASA Map and Eclipse Information (Note: This event is not visible in the Philippines.)

November 17, 18 : Leonids Meteor Shower

The Leonids is one of the better meteor showers to observe, producing an average of 40 meteors per hour at their peak. The shower itself has a cyclic peak year every 33 years where hundreds of meteors can be seen each hour. The last of these occurred in 2001. The shower usually peaks on November 17 & 18, but you may see some meteors from November 13 – 20. The crescent moon will set early in the evening leaving dark skies for what should be an excellent show. Look for the shower radiating from the constellation Leo after midnight, and be sure to find a dark location for viewing.

November 27 : Conjunction of Venus and Saturn

These two bright planets will be within 1 degree of each other in the morning sky. Look to the east around sunrise.

December 3 : Jupiter at Opposition

The giant planet will be at its closest approach to Earth and its face will be fully illuminated by the Sun. This is the best time to view and photograph Jupiter and its moons.

December 11 : Saturn, Venus, Mercury and the Crescent Moon at Predawn

Check the eastern sky about an hour before dawn to see this magnificent celestial display of the three planets and the thin lunar crescent.

Eastern sky at around 5 am | Manila

December 13, 14 : Geminid Meteor Shower

Considered by many to be the best meteor shower in the heavens, the Geminids are known for producing up to 60 multicolored meteors per hour at their peak. The peak of the shower usually occurs around December 13 & 14, although some meteors should be visible from December 6 – 19. The radiant point for this shower will be in the constellation Gemini. This year the new moon will guarantee a dark sky for what should be an awesome show. Best viewing is usually to the east after midnight from a dark location.

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References:

  • Stellarium Planetarium Software

Sidereal Times Online

Sidereal Times – the official publication of the UP Astronomical Society – is now available online! :)

http://siderealtimes.blogspot.com

Now, anyone can get the latest information on the upcoming activities of UP Astrosoc and learn more about the latest news and updates in the wonderful field of astronomy by visiting this site.

Helpful tips and trivia for amateur astronomers were also being posted to the site by members.

The External Affairs Committee of the org (to which I once belonged) is the one in-charge of this publication.

As its former editor-in-chief, I was really glad that a site was finally launched for it and that the publication can now be accessed by more readers.

Congratulations to UP Astrosoc on this success! :) Ad astra per aspera!

Meet Algorab, my Panasonic Lumix FH2 Digicam

I just bought my first digital camera that I could use in taking photos of the night sky. :)

Algorab, my Panasonic Lumix DMC-FH2

It was a 14-megapixel Panasonic Lumix DMC-FH2 digital camera which I named  Algorab. (For astronomy enthusiasts,  the name came from Delta Corvi, the most notable star of Corvus, which simply means ‘The Crow or Raven’ in Arabic. It is is a double star, 3.1 and 8.5 magnitude, pale yellow and purple, on the right wing of Corvus.)

The Panasonic Lumix DMC-FH2 is a ultra-compact digital camera with an effective resolution of 14.1 megapixels. The lens offers a 35mm-equivalent range from a useful 28mm wide angle to a 112mm telephoto and features a true optical image stabilization system with which to fight blur caused by camera shake.

Crepuscular rays | image taken using Algorab

The main reason why I bought this camera is because of its long exposure capability (up to 60 seconds). Long exposure times permit the camera to gather enough light to take a quality photo, even in the darkest of environments like the night sky. If you want to keep the noise levels low and use lower ISO levels in dark environments long exposure times can be very useful. Most people don’t normally need to take very long exposure photos, but they can provide an amazing creative opportunity for amateur astronomers. For example you can take long exposure shots of the night sky to capture the movement of stars across the sky, capture night-time vistas, landscapes at dusk, etc.

Orion over a light-polluted area

I’ve already used a previous model of Panasonic Lumix before and I got amazed when I first learned about its impressive feature. FH2 compared to Lumix FS7, however, has significantly better wide angle (28 mm vs 33mm) meaning it can capture around 20% bigger view. FH2 also has  more than 10% larger sensor and  has a slimmer compact body (0.7″ vs 0.9″).

Moreover, this model can also record 1280 x 720p High Definition (HD) video.

Another feature that I love about this camera is its Intelligent Scene Selector which allows its user to select the best option from Macro, Portrait, Scenery, Night Portrait, Night Scenery and Sunset by detecting the environment.

Overall, this budget product is excellent for its affordable price. It has a well balanced performance for a point and shoot; it’s easy-to-use, has good image quality and  it contains certain features that are typically found on higher end products.

I’m really excited to use it to take images of the upcoming planetary conjunctions. :)

Clear skies!

King and Queen of the Night Sky

Jupiter (upper right) and Venus (left) Feb. 10, 2012 6:50 PM

Jupiter and Venus, the two great and famous luminaries of heaven  are now 30° apart in the western sky during early evening and are moving closer to each other by  roughly one degree each day.

Jupiter, king of planets, has been our constant evening companion for the last six months.  Only Venus outshines Jupiter among the planets and stars. Venus and Jupiter are so bright you might think you’ve witnessed a double supernova beaming through the evening twilight. But, no, it’s just the two brightest planets in our own solar system.

Over the next couple weeks, Venus and Jupiter will continuously reign the evening sky; only the moon will be brighter. The planets will continue to get closer and closer to one another until March.

On the evenings of February 24, 25 and 26, the thin lunar crescent will pass close to Venus and Jupiter.

By March 14 and 15, these two bright objects will be on a spectacular conjunction — the closest in 2012. The next Venus-Jupiter conjunction after this one falls on May 28, 2013.

At the moment of closest approach, Venus will be at mag -4.9, and Jupiter at mag -2.1, both in the constellation Aries. The pair will be too widely separated to fit within the field of view of a telescope, but will be visible to the naked eye or through a pair of binoculars.

After this event, Venus and Jupiter will remain close throughout the month of March 2012. They are like twin beacons – two very bright planets – near each other in the west as soon as the sun goes down.

Venus and the Moon at Dusk – January 26, 2012

I was about to go home when I caught a glimpse of Venus and the thin Moon hanging close together in the western sky at dusk last January 26.

I didn’t have a camera with me then. Fortunately,  a friend of mine had his camera and let me use it to take a few images of this stunning sight.

A view of the U.P. Carillon Tower

Venus is now shining brilliantly in the west-southwest after sunset at magnitude -4.0. It will be climbing higher in our sky over the next three months as it comes closer to us in its orbit. Over that time the planet will brighten but its phase will shrink as the Sun shifts to the other side of Venus from us.

By February 2012, Venus will climb up higher into the evening sky and will stay out even longer after dark. It’ll be at its highest above the sunset in March 2012, when Jupiter and Venus will stage an amazing conjunction in the western twilight sky. These two bright planets will lie about three degrees apart in the West in the constellation Aries. Venus will beam at magnitude -4.3, and Jupiter is a worthy companion at magnitude -2.1. The pairing will make for a lovely photo op. :)

On March 25, Venus, Jupiter and the thin crescent Moon will form a straight line in the western sky.

image: Stellarium

Clear skies! :)

Skywatching Highlights: January 2012

Well-known constellations like the ones in the Winter Hexagon – Gemini, Orion, Canis Major, Canis Minor, Auriga and Taurus – can be easily seen during the longer hours of darkness in the Northern hemisphere this month.

Most of the events listed here can be readily observed with the naked eye, but some objects such as the planets and some star clusters are best seen through binoculars or a small telescope.

All of the times and dates found here are in Philippine Standard Time (PHT) unless otherwise indicated. Note that PHT = UT+8.

Clear skies and happy skygazing! :)

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This month’s highlights:

  • The Quadrantid Meteor Shower
  • Planetary conjunctions with the Moon
DATE EVENT TIME NOTES
Jan. 1 First Quarter Moon 2:15 PM
Jan. 2 Moon-Jupiter close pairing (~7° apart)
Jan. 3 Moon at apogee 4:00 AM farthest distance to Earth
Jan. 3-4 Peak of the Quadrantid Meteor Shower 3:23 AM Quadrantid Shower: ZHR = 120
Jan. 5 Earth at perihelion  (0.9833 AU) 8:00 AM closest distance to the Sun
Jan. 5 Moon near the Pleiades (3.1° N)
Jan. 9 Full Moon 3:30 PM
Jan. 16 Last Quarter Moon 5:08 AM
Jan. 16 Moon near the star Spica (2° N)
Jan. 17 Saturn 6° north of the Moon 3:00 AM
Jan. 18 Moon at perigee 5:00 AM nearest distance to Earth
Jan. 23 New Moon 3:39 PM
Jan. 25 Neptune 6° south of the Moon 8:00 PM
Jan. 27 Moon-Venus close pairing dusk Venus 7° south of the Moon
Jan. 30 First Quarter Moon 3:39 PM
Jan. 30 Moon-Jupiter close pairing
Jan. 31 Moon at apogee  2:00 AM farthest distance to Earth
January 2: Moon-Jupiter Conjunction

Image: Stellarium

An eventful sky year begins with brilliant Jupiter high up on the Aries-Pisces border at nightfall. On January 2, Jupiter will be about 7 degrees away from the 61% full moon in the constellation Pisces.

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January 3-4: Quadrantid Meteor Shower

Image: SkyandTelescope.com

This should be a fine year for one of the best, but least observed, annual meteor showers like the  Quadrantids. The Quadrantids are an above average shower, with up to 40 meteors per hour at their peak. This meteor shower should be most active in the early morning hours of Wednesday the 4th, but some meteors can be visible from January 1 – 5.  The Moon sets around 3 AM local time then, leaving the sky dark until the first light of dawn around 6 AM. Look for meteors radiating from the constellation Bootes.

References:

2011 in review

The WordPress.com stats helper monkeys prepared a 2011 annual report for this blog.

Here’s an excerpt:

The Louvre Museum has 8.5 million visitors per year. This blog was viewed about 75,000 times in 2011. If it were an exhibit at the Louvre Museum, it would take about 3 days for that many people to see it.

Click here to see the complete report.

Happy 2012!

Fireworks Galaxy NGC 6946 
Image Credit & Copyright: Adam Block, Mt. Lemmon SkyCenter, U. Arizona

Celebrate the New Year with the Fireworks Galaxy! Also known as NGC 6946, the big, beautiful spiral galaxy is located just 10 million light-years away, behind a veil of foreground dust and stars in the high and far-off constellation of Cepheus.

May God bless you throughout this year and always! Have a prosperous year ahead! :)

December 10, 2011 Total Lunar Eclipse

Despite the rain and an overcast sky, we were thankful that for a brief period of time God permitted us to have a glimpse of the Red Moon during the total eclipse of the moon last December 10, 2011.

The moon was nearly high overhead during the totality phase of the eclipse and was located in the constellation Taurus. Totality lasted for about 51 mins.

I didn’t get decent shots of the moon during this event but I was really happy to have witnessed it. :)

Click on the images below to see larger versions.

First sight of the moon at 10:22 pm
After a short while, the clouds began to move away and we had a clear view.
Moon at totality

The red tint of the eclipsed Moon is created by sunlight first passing through the Earth’s atmosphere, which preferentially scatters blue light (making the sky blue) but passes and refracts red light, before reflecting back off the Moon. Differing amounts of clouds and volcanic dust in the Earth’s atmosphere make each lunar eclipse appear differently.

Orion and the Red Moon at 10:56 pm
Moon exits totality. Image taken at 11:09 pm
Moon at 11:27 pm. Only half of the moon’s disk lies within the umbra.
Moon at 11:51 pm. A 22 degree lunar halo formed around the moon just before it exited the umbral eclipse phase.

By the way, I observed this event together with my friend and UP AstroSoc orgmate, Bea Banzuela. We were eating a cold dinner (literally!) from the rooftop of their house in Marikina City while checking the sky and taking photos of the moon.

Bea used her sophisticated camera, Panasonic Lumix DMC-GH2 (with telephoto lens) in capturing lunar images. Below is one of the images she took:

Image courtesy of Bea Banzuela

The lunar features in this image are more recognizable. :) I love that camera! Haha! Thanks Bea, for allowing me to repost this.

“When you want something, all the universe conspire in helping you to achieve it.” – Paulo Coelho (The Alchemist)
To the stars! :)

The Mind Museum…finally!

Great news to my fellow Filipinos!

After much anticipation, The Mind Museum, the Philippines’ first world-class science museum was finally unveiled via a pre-launch reception this month.

It will be then officially open to the public in March 2012.

According to its curator,  the said 12,500-square-meter facility was fully funded by private donations from corporate sponsors and family and individual donors “who share the passion of making science come alive.”

To those who would like to visit the museum, it is located on the 12,500 sqm prime lot of JY Campos Park on 3rd Ave in Bonifacio Global City, Taguig.

location

The facility has 250 interactive exhibits and is divided into five main galleries, namely the Atom Gallery, Earth Gallery, Life Gallery, Technology Gallery and Universe Gallery (which of course, is my favorite!).

image courtesy of OurAwesomePlanet.com

The Universe Gallery contains a unique planetarium that simulates stargazing from the point of view of literally lying down on a bed beneath the stars.

The Universe Gallery

Last May 2010, I invited some friends to visit The Roving Space Shell – a travelling inflatable dome – in Market! Market! in Global City, Taguig.

The 8-meter diameter Roving Space Shell is from Cosmodome Australia and is the choice of many universities and research institutions around the world, including NASA. This inflatable planetarium can sit up to 50 people comfortably with a 360- degree view of the shows through a high definition projector.

It has provided the public a sneak preview of what The Mind Museum will be offering to the public when it opens.

The Mind Museum is a P1 billion project conceived in 2006 by Bonifacio Art Foundation, Inc. (BAFI), the group in charge of Bonifacio Global City’s public art program. It is brought to reality by companies, families and individuals who heeded the call to support Science education in the country as a way to help economic growth in the long term. It is envisioned to be the Philippine’s center for the public understanding of Science where facts are presented in clear, exciting, and engaging way.

Learn more about The Mind Museum…

Help Build and be a Donor…

A Triple Celestial Treat: My Image in AAPOD, EarthSky, and InOMN Photo Contest

I was really happy that once again, one of my images was featured in the Amateur Astronomy Picture of the Day (AAPOD) website last December 9, 2011. It’s an image featuring the planets Venus and Mercury along with the thin Moon during a nice celestial grouping at dusk last October 28.

It also got included in an article posted in EarthSky.org. Deborah Byrd, founder and president of EarthSky sent me message through Facebook to ask permission to repost my image.

Moreover, another surprising news came in as I received a notification that the same image has won, along with another image of mine,  in the first round of voting in the 2011 International Observe the Moon Night (InOMN) Art Contest. :) Yay!

Here are the links:

It was really inspiring for an amateur like me who doesn’t even own a decent camera fit for sky photography to have my image featured in such astronomy websites. Thank you, AAPOD, EarthSky and InOMN! 

I hope this would encourage more astronomy enthusiasts who are also into sky photography to submit their images and share their interest to many people who might also find a new fondness for the night sky.

Perhaps I should start saving more to have that camera which I’ve been eyeing on for so long. ;)  All things in God’s time.

To the stars!

The Christmas Tree Cluster

Image credit: NASA/JPL-Caltech

The Christmas Tree Cluster, also known as NGC 2264, is a well-studied region in the Monoceros (the Unicorn) constellation. The Christmas Tree Cluster was so named because it looks like a tree in visible light. The nebula is roughly 2,500 light-years away. That is, the nebula emitted the light in the new Spitzer image 2,500 years ago.

“I have always thought of Christmas time, when it has come round, as a good time; a kind, forgiving, charitable time; the only time I know of, in the long calendar of the year, when men and women seem by one consent to open their shut-up hearts freely, and to think of people below them as if they really were fellow passengers to the grave, and not another race of creatures bound on other journeys.” ~ Charles Dickens

As we experience the joys of Christmas this year, let us not forget that Christ is the reason for the season. The birth of Jesus Christ is a wonderful holiday to celebrate our love for Christ and his atoning sacrifice for all of us.

Happy Holidays, folks! Have a blessed year ahead! :)

My Total Lunar Eclipse Montage in Universe Today

Didn’t know that one image of mine got featured in Universe Today last October 12. :D Click here to view the article.

Thanks, Universe Today! 

Third in AAPOD!

My image, “Moon-Mars Conjunction Over the Light-Polluted City” was chosen as Amateur Astronomy Picture of the Day (AAPOD) last November 22, 2011. Click on this link to view the image.

Yay! :)

 

Moon and Jupiter – 10 November 2011

I was in the open area of the Trinoma Mall in Quezon City when I noticed this close pairing of the waxing gibbous moon (99% illuminated) and Jupiter last November 10, 2011. These two objects were ~6 degrees apart.

I never expected to see this celestial conjunction as the sky was too cloudy that night. Fortunately,  I have already set up the camera (without the tripod) by the time the clouds moved away.

I really love to see close pairings of bright sky objects like this one. :)

UP AstroSoc’s Second Sem, 2011-2012 Application

UP Astronomical Society is now open for applications!
Visit our booth along AS Walk on Dec 6-9.
Apps’ Orientation will be on December 9, 2011 (Friday) 6pm at the PAGASA Observatory Moon Deck near CHE.

You can also sign-up online at https://docs.google.com/spreadsheet/viewform?hl=en_US&formkey=dC05c1NfdWJpTVM4ajdXSlQ4RmI5QkE6MA#gid=1

For inquiries, contact Andro at 09162309138.
See you! Ad Astra Per Aspera!

Mercury, Venus and the Young Moon at Dusk

Triple celestial display at dusk – Mercury, Venus and the Young Moon

Last October 28, 2011 I immediately headed to the SM Mall of Asia after our 2-day sem planning in Makati to take an image of this nice celestial grouping shortly after sunset. Sleeplessness failed to hinder me :P

It features the thin Young Moon and the two inner planets, Venus and Mercury hanging near each other in the western sky at dusk.

I was really fortunate to have been able to catch this sky display just before darkness came. *Traffic in the city really sucks.*

Anyway, I hope the skies will always be this clear. :)

To the stars!

The Solitary Star

Fomalhaut, the Solitary star

Have you ever noticed the loneliest star?

Fomalhaut (or Alpha Piscis Austrini) is the brightest star in the faint constellation Piscis Austrinus – the Southern Fish – and the 17th or 18th brightest in the sky. It can be seen low in the southern sky during these evenings.

Fomalhaut, sometimes called the Autumn Star, appears in a part of the sky that is largely empty of bright stars. For this reason, it is also often called the Lonely One or Solitary One.

But, it’s been less lonely since the discovery of its planet ‘Fomalhaut b’ in 2008. Fomalhaut b – the first extrasolar planet to be imaged at visible wavelengths – orbits the loneliest star.

Fomalhaut is also one of the first known to have a disk of dust around it, a sign that more planets might be forming there.

Image taken last October 31, 2011 at 8:31 pm.

Triangles of the Night Sky

Here are images of the two famous triangles of the night sky — the Summer Triangle and the Winter Triangle — that I took last October.

Winter Triangle - October 5, 2011 3:42 am. This triangle is formed by the three first magnitude stars Sirius in Canis Major, Procyon in Canis Minor, and Betelgeuse in Orion. This shape is a nearly perfect equilateral triangle.

Summer Triangle - October 4, 2011 11:00 pm. This asterism sets in the west shortly after sunset around now. It consists of three bright stars: Vega in the constellation Lyra, Deneb in the constellation Cygnus, and Altair in the constellation Aquila.

These two serve as a stellar calendar, marking the seasons.

The Summer Triangle is the signature star formation of summer. Likewise, the Winter Triangle is a landmark of the winter night sky.

Though December is just around the corner, the Summer Triangle still lights up these autumn evenings. It will continue to shine after dark throughout December and January.

Meanwhile, as the Summer Triangle descends in the west around mid-evening, the Winter Triangle can be seen rising in the east.

Isn’t it amazing that these stars that make up these celestial triangles just happen to be positioned the way they are in the night sky? :)

Both photos were taken from our suburban place in San Jose del Monte, Bulacan.