Chasing the Shadow: Our Guide to the March 9th Total Solar Eclipse

Totality! The total solar eclipse of November 14th, 2012. Image credit: Narayan Mukkavilli

Ready for the ultimate in astronomical events? On the morning of Wednesday, March 9th, the Moon eclipses the Sun for viewers across southeast Asia.

Many intrepid umbraphiles are already in position for the spectacle. The event is the only total solar eclipse of 2016, and the penultimate total solar eclipse prior the ‘Big One’ crossing the continental United States on August 21st, 2017.

Image credit: Great American Eclipse/Michael Zeiler
The path of tomorrow’s eclipse. Image credit: Great American Eclipse/Michael Zeiler

Tales of the Saros

This particular eclipse is member 52 of 73 eclipses in saros cycle 130, which runs from 1096 AD to 2394. If you saw the total solar eclipse which crossed South America on February 26th, 1998, then you caught the last solar eclipse from the same cycle.

Image credit: NASA/GSFC/A.T. Sinclair
An animation of the event. Image credit: NASA/GSFC/A.T. Sinclair

Weather prospects are dicey along the eclipse track, as March is typically the middle of monsoon season for southeast Asia. Most eclipse chasers have headed to the islands of Indonesia or cruises based nearby to witness the event. The point of greatest eclipse lies off of the southeastern coast of the Philippine Islands in the South China Sea, with a duration of 4 minutes and 10 seconds. Most observers, however, will experience a substantially shorter period of totality. For example, totality lasts only 2 minutes and 35 seconds over island of Ternate, where many eclipse chasers have gathered. The Sun will be 48 degrees above the horizon from the island during totality.

A great place to check cloud cover and weather prospects along the eclipse track is the Eclipsophile website.

Image credit; SkippySky
A dicey sky: prospects for cloud cover over Australia. Image credit; SkippySky

The umbra of the Earth’s Moon will sweep across Sumatra at sunrise and across the island of Borneo, to landfall one last time for Indonesia over the island of North Maluku before sweeping across the central Pacific. This eclipse is unusual in that it makes landfall over a very few countries: the island nation of Indonesia, and just a few scattered atolls in Palau and Micronesia.

Partial phases of the eclipse are also visible from India at sunrise, across northeast Asia along the northernmost track, to central Australia in the south, and finally, to southern Alaskan coast at sunset. Honolulu Hawaii sees a 65% partial solar eclipse in the late afternoon on March 8th.

Expect great views, both from Earth and from space. We typically get images from solar observing spacecraft, to include the joint NASA/JAXA Hinode mission, and the European Space Agency’s PROBA-2 spacecraft. Both are in low-Earth orbit, and see a given eclipse as a swift, fleeting event. Other solar observatories—such as the Solar Heliospheric Observatory and the Solar Dynamics Observatory—occupy a different vantage point in space, and miss the eclipse.

Image credit: Starry Night Education Software
The orientation of the Sun and planets at totality (click to enlarge). Image credit: Starry Night Education Software

As of this writing, we know of several folks that have made the journey to stand in the path of totality, to include Sharin Ahmad (@Shagazer), Michael Zeiler (@GreatAmericanEclipse) and Justin Ng.

Good luck and clear skies to all observers out there, awaiting darkness in the path of totality.

Live in the wrong hemisphere? There are several live webcasts planned from the eclipse zone:

NASA and the National Science Foundation are working with a team from San Francisco’s Exploratorium to bring a live webcast of the eclipse from the remote atoll island of Woleai, Micronesia. The feed starts at 7:00 EST/0:00 Universal Time (UT) and runs for just over three hours. You can follow the exploits of the team leading up to show time here.

The venerable Slooh will also feature a webcast of the eclipse with astronomer Paul Cox from Indonesia running for three hours starting at 6:00 PM EST/23:00 UT.

A view of the partial phases of the eclipse from the Hong Kong science center also starts at 5:30 PM EST/22:30 UT:

Don’t forget: though the eclipse occurs on the morning of March 9th local time in southeast Asia, the path crosses the International Dateline, and the webcasts kick off on the evening of Tuesday March 8th for North America.

And hey, Alaska Airlines flight 870 from Anchorage to Honolulu will divert from its flight plan slightly… just to briefly intercept the Moon’s shadow (its already a fully booked flight!)

From there, 2016 features only two faint penumbral lunar eclipses on March 23rd and September 16th, and an annular solar eclipse crossing central Africa on September 1st.

We’ll be doing a post-eclipse round up, with tales from totality and the pics to prove it… stay tuned!

Got eclipse pictures to share? Send ’em to Universe Today… we just might feature them in our round up!

Don’t miss our eclipse-fueled science fiction tales: Exeligmos and Shadowfall.

By Jove: Our 2016 Guide to Jupiter at Opposition

Getting closer... Jupiter, imaged on February 24th. Image credit and copyright: Efrain Morales

Ready to explore the largest planet in our solar system? The month of March heralds the return of Jupiter to evening skies. Early March 2016 sees the planet Jupiter starting off the month less than one degree from the star Sigma Leonis. Continue reading “By Jove: Our 2016 Guide to Jupiter at Opposition”

The Future of Gravitational Wave Astronomy: Pulsar Webs, Space Interferometers and Everything

A merging of two massive objects, sending ripples through the fabric of space and time. Image credit: R. Hurt/Caltech JPL

It’s the hot new field in modern astronomy. The recent announcement of the direct detection of gravitational waves by the Laser Interferometer Gravitational-wave Observatory (LIGO) ushers in a new era of observational astronomy that is completely off the electromagnetic spectrum. This detection occurred on September 14th, 2015 and later earned itself the name GW150914. This occurred shortly after Advanced LIGO turned on in early September, a great sign concerning the veracity of the equipment. Continue reading “The Future of Gravitational Wave Astronomy: Pulsar Webs, Space Interferometers and Everything”

Double Shadow Transit Season for the Jovian Moons Begins

New Horizons nabs a double shadow transit en route to Pluto. Image credit: NASA/JPL/New Horizons

Watching the inky-black shadow of a Jovian moon slide across the cloud-tops of Jupiter is an unforgettable sight. Two is always better than one, and as the largest planet in our solar system heads towards opposition on March 8th, so begins the first of two seasons of double shadow transits for 2016. Continue reading “Double Shadow Transit Season for the Jovian Moons Begins”

Stunning Images of the February Dawn Planetary Line-up from Around the World

5 Planets Alignment The Moon 01-30-2016, 06:13am EST outside of Warrenton, Virginia. Image credit and copyright: John Chumack Canon 6D DSLR, 8mm fisheye Lens, Slightly Cropped ISO 800, 8 second exposure,

Have you seen them? There’s been a quintet of good reasons to awaken early this past week, as the February dawn sky hosts all five classical planets, very nearly in order: Mercury, Venus, Mars, Saturn and Jupiter. For a few days, the waning crescent Moon even joined the show on the weeks leading up to New on February 8th. Fleeting Mercury breaks the streak later this week, exiting the dawn sky as it heads towards superior conjunction on the far side of the Sun on March 23rd. Continue reading “Stunning Images of the February Dawn Planetary Line-up from Around the World”

Watch the Moon Beat a Path Across the Hyades Tonight

Do you see it? The Moon closes in on Aldebaran last October. Image credit and copyright: Frank Tyrlik

Once more, unto the breech…” Ready to brave the February cold and the ongoing arctic polar express? Tonight, North American skywatchers will witness an encore event, as the waxing gibbous Moon crosses the Hyades star cluster and – for a lucky few — occults the bright star Aldebaran. Continue reading “Watch the Moon Beat a Path Across the Hyades Tonight”

A Challenge in Visual Athletics: Hunting the Gegenschein

The gegenschein visible as the bright 'knot' in the zodiacal glow high above the VLT. Image credit: ESO/Y. Beletsky

Looking for something truly elusive? Astronomy has no shortage of the fleeting and ephemeral when it comes to challenges. This week’s challenge will require supremely dark skies and persistence.

We’re talking about the gegenschein, the elusive counter glow lying opposite to the Sun across the plane of the ecliptic. Continue reading “A Challenge in Visual Athletics: Hunting the Gegenschein”

And Mercury Makes Five: See All Naked Eye Planets in the Sky at Once

The waning crescent Moon above Venus and Saturn (dimmer and below Venus) in the dawn twilight on January 6, 2016. The Moon re-visits the grouping in early February. Image credit and copyright: Alan Dyer.

A fine sight greets early risers this week into the month of February, as all five naked eye planets: Mercury, Venus, Mars, Saturn and Jupiter ring the sky from horizon to horizon.

Though not a true planetary alignment as extolled by many websites, this is a great chance to see all five classical planets above the horizon at once… or seven, if you count the waning gibbous Moon and the rising Sun, as the ancients did as part of their geocentric, Earth-entered universe. You can kinda see how they got there, as the very heavens themselves seemed to whorl about the cradle of earthly human affairs. Continue reading “And Mercury Makes Five: See All Naked Eye Planets in the Sky at Once”

Lights Out: A Fine Occultation of Aldebaran Spans the Atlantic

The waxing gibbous Moon closes in on Aldebaran (lower left). Image credit and copyright: Sarah & Simon Fisher

They braved the cold, cursed the clouds, wrestled with frozen telescope focusers and more, as dedicated astros worked to catch the first occultation of the bright star Aldebaran for 2016 by the waxing gibbous Moon.

The event went down last night into the wee hours of the morning, and was visible across North America into western Europe and the United Kingdom. Continue reading “Lights Out: A Fine Occultation of Aldebaran Spans the Atlantic”