This week at the George Observatory: Perseids Punch Through Supermoon on August 12

If you follow astronomy websites, you’ve probably noticed that every month or so there’s an article about a meteor shower happening. There are meteors showers frequently throughout the year. Some showers are more active than others depending on various factors. This August one of the most reliably active showers, the Perseids, will take place. 

The Perseids, sometimes called The Tears of St. Lawrence, occur when the Earth passes through a debris field created by comet 109P Swift-Tuttle. This year, the meteor shower peaks Tuesday night (August 12) through early Wednesday morning. Besides being one of the most active showers (in 2013 it averaged 109 meteors an hour), the Perseids also have a very broad peak. Meteors can be seen as early as July in some circumstances. 

The early meteors which are the first ones to hit the earth’s atmosphere, tend to be the brightest ones with the longest tails.These are called “Earth-grazers” and those are the ones we will be looking for the evening of August 12-13 here at the George Observatory.

This year, the shower will be taking place during another “Supermoon,” occurring August 10. While not at its closest point, this means the Moon will still be very close and bright on August 12. Normally, this would not be an ideal night for observing meteors since the Moon will flood the sky with light.

Our astronomers like to joke that “Moon” is a four letter word. 

But don’t fret! The Moon won’t rise until 9:30 p.m. that night and, with our high tree-line here at the George Observatory, it won’t start affecting viewing until at least 10 p.m.  Also, even after the Moon rises, the brightest meteors will still shine through. 

In 2011, the Perseids peaked on a full Moon and people still saw an average of over 50 meteors an hour. This year the Moon will be a waxing gibbous (progressing from the full moon to the new moon).

The George Observatory will be open on Tuesday, August 12 from 5 p.m. until 2 a.m. for  meteor shower viewing. 

Event tickets are $5 per person.  Our Discovery Dome will also be available for $3 per person.  

Seeing Stars with James Wooten: The Perseids are back August 12!

Star Chart August 2014

This star map shows the Houston sky at 10 pm CDT on August 1, 9 pm CDT on August 15, and dusk on August 31. To use the map, put the direction you are facing at the bottom. The Summer Triangle is high overhead. This consists of the brightest stars in Cygnus, Lyra, and Aquila. Scorpius, the Scorpion, is in the south, with the ‘teapot’ of Sagittarius to his left. From the Big Dipper’s handle, ‘arc to Arcturus’ and ‘speed on to Spica’ in the southwest. Watch Mars close in on Saturn this month. The Great Square of Pegasus rises in the east, heralding the coming autumn.

This month, Mars is in the southwest at dusk this month. Mars continues to fade a little each night as Earth continues to leave it farther behind. Still, Mars rivals the brightest stars we see at night.

Saturn is also in the south southwest at dusk. Mars passes 3.4 degrees south of Saturn on August 25. 

Venus remains in the morning sky, although it now begins to approach the Sun more and more. Look east at dawn for the brightest point of light there; only the Sun and Moon outshine Venus. Venus remains a morning star for almost all of 2014.

Jupiter emerges from behind the Sun into the morning sky by late August. Venus is about 1/5 of one degree from Jupiter at dawn on August 18th. (Both are low in the east at dawn). 

The Big Dipper is left of the North Star, with its handle pointing up. From that handle, you can ‘arc to Arcturus’ and then ‘speed on to Spica’; those stars are in the west at dusk.  Leo, the Lion, is setting in the west at dusk.

Antares, brightest star of Scorpius, the Scorpion, is in the southeast, with the ‘teapot’ of Sagittarius behind it. The Summer Triangle is high in the east. The stars of summer are here. By late evening you can look for the Great Square of Pegasus rising in the east, indicating that fall is approaching.

Coming to an observatory near you, August 12: The annual Perseid meteor shower peaks next week, late Tuesday/early Wednesday (August 12-13).  As usual, we see more meteors towards dawn because that’s when we rotate into the meteor stream. 

The George Observatory is open 7:00 p.m. August 12 until 2:00 a.m. August 12-13 for the shower. 

 

Moon Phases in August 2014

1st Quarter: August 3, 7:50 p.m. 
Full: August 10, 1:10 p.m.
Last Quarter: August 17, 7:26 a.m.
New: August 25, 9:12 a.m.

Click here to see the Burke Baker Planetarium Schedule.

On most clear Saturday nights at the George Observatory, you can hear me do live star tours on the observation deck with a green laser pointer. If you’re there, listen for my announcement. 

Clear Skies!

Catch the Perseid Meteor Shower this weekend at the George Observatory!

We’re hosting late-night this weekend.

On Saturday, August 10, the George Observatory will be staying open until the wee ours of 2 a.m. in order to proffer the best possible viewing of the annual Perseid Meteor Shower.

Each year in mid-August, a stream of debris ejected by the Swift-Tuttle comet, called the Perseid cloud, becomes visible to stargazers as a meteor shower.

Night at the ObservatoryPhoto courtesy of Sergio Garcia Rill Photography

These “shooting stars” are actually streaks of light that occur when tiny dust particles in the comet’s debris trail collide with and are vaporized by the Earth’s atmosphere.

Want to know more about the science behind meteor showers? Check out this great video from space.com:

Normal park entrance fees ($7 per person; free for children 12 and younger) apply.

As always, personal telescopes are welcome! The shower is also visible to the naked eye. Lawn chairs, bug spray, snacks and blankets are encouraged.

Seeing Stars with James Wooten: August 2013

Venus remains in the west at dusk. It outshines everything but the Sun and Moon, so you can begin observing it during deep twilight. As August ends, Venus begins to approach Saturn.

Saturn is now shining in the south/southwest at dusk. Although not as bright as Venus, it does outshine the stars around it, so you can’t miss it. Jupiter is higher in the morning sky this month. Look for it in the east at dawn.

Mars, much dimmer than Jupiter, now pulls away from it in the morning sky. Look for it to Jupiter’s lower left in the morning sky at dawn.

Seeing Stars with James Wooten

The Big Dipper is to the left of the North Star, with its handle pointing up. From that handle, you can ‘arc to Arcturus’ and then ‘speed on to Spica’; those stars are in the south at dusk.  Leo, the Lion, sets in the west at dusk.

Antares, brightest star of Scorpius, the Scorpion, is in the south, with the ‘teapot’ of Sagittarius to its left. The Summer Triangle is high in the east. The stars of summer are here. Meanwhile, the Great Square of Pegasus begins to rise in the east, indicating that fall is near.

Moon Phases in August 2013:

New                                August 8, 2:15 am
1st Quarter                    August 15, 10:19 pm
Full                                 August 22, 1:15 pm
Last Quarter                 August 29, 12:44pm

The Perseid meteor shower peaks on Monday morning, August 12, as it does every year in mid-August. As always, we see more meteors in the pre-dawn hours, because that’s when Earth rotates us into the meteor stream. The Perseids have a broad peak, meaning that quite a few meteors are visible for a few days before and after the best date.

Thus, you’ll still see quite a few meteors if you come to George Observatory on Saturday night, August 10 and stay into Sunday morning, August 11. We’ll be open until 2 am, long enough for the shower to get good. Keep in mind that this is a meteor shower with, on average, one meteor per minute, and not a meteor storm, which would average about one meteor per second.

On most clear Saturday nights at the George Observatory, you can hear me do live star tours on the observation deck with a green laser pointer. If you’re there, listen for my announcement.

To enjoy the stars in any weather from the comfort of the HMNS Planetarium, click here for a full schedule.