Seeing Stars with James Wooten: Mars Brightest in the Sky During the Month of the Summer Solstice

June Starmap

Jupiter is now high in the southwest at dusk. It outshines all stars we ever see at night, so you can’t miss it. 

Mars and Saturn are now in the southeast at dusk. As you watch them rise, Mars is to the right and is much brighter. 

In fact, this month Mars outshines all of the stars and even rivals Jupiter in brightness! That’s because on May 22, Earth passed between the sun and Mars. That alignment is called ‘opposition’ because it puts Mars opposite the sun in our sky, making Mars visible literally all night long. It also makes Mars much brighter than normal in the sky, since we’re as close to it as we’ll ever get until Earth overtakes Mars again in 2018. Saturn came to opposition on June 3.

Venus is lost in the sun’s glare and out of sight all month. In fact, on June 6, Venus is directly behind the sun from our vantage point.

The Big Dipper is above 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, is high in the west at dusk. Venus and Jupiter come together right in front of Leo’s face, marked by stars in the shape of a sickle, or a backwards question mark. 

Antares, brightest star of Scorpius, the Scorpion, is in the southeast, with the ‘teapot’ of Sagittarius rising behind it. Saturn is right above the scorpion’s head. The Summer Triangle has fully risen in the northeast. The stars of summer are here.

Moon Phases

Moon Phases in June 2016:

New: June 5, 10 p.m.

First Quarter: June 12, 3:10 a.m.

Full: June 20, 6:02 a.m.

Last Quarter: June 27, 1:19 p.m.

Earth at Aphelion:

At 5:34 pm on Monday, June 20, the sun is directly overhead as seen from the Tropic of Cancer, the farthest point north where the sun ever appears overhead. This means Earth’s North Pole is tilted towards the sun as much as possible towards the sun, and the sun appears higher at midday than on any other day of the year. We also have more daylight on June 20 than on any other day of the year. Therefore, we call June 20, 2016, the summer solstice. Below the equator, the sun is as low at midday as it ever gets, and there is less daylight than on any other day of the year. For them, this is the winter solstice. 

But if you’re paying close attention, you’ll notice that the latest sunset occurs at the end of the month, not on June 20. As Earth approaches aphelion (farthest distance from the Sun) on its slightly elliptical orbit, it slows down slightly. This causes both sunrise and sunset to occur a little later each day. This tiny effect actually prevails near the solstices because Earth’s tilt changes very little during that time. (Think of a sine wave; near the highest and lowest points, the curve looks fairly flat). Most of us sleep through sunrise and witness sunset, so we have the (wrong) impression that the days lengthen all the way to the end of June.

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. As of now, however, the George is closed while Brazos Bend State park dries out from yet another round of floods on the Brazos River. Stay tuned for updates.

Clear Skies!

Seeing Stars with James Wooten: Saturn and Perseid meteors bright in August

Star map Aug

Saturn is now in the south-southwestern sky at dusk. It outshines the stars around it, so it’s also easy to see.

Mars emerges into the morning sky this month. Look for it low in the east at dawn.  Mars remains dimmer then average, though, and won’t rival the brighter stars until next spring.

Venus and Jupiter are in line with the Sun and out of sight this month. Venus emerges into the morning sky fairly quickly, though; try looking for it low in the east at dawn the last week of August.

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 southwest at dusk.

Antares, brightest star of Scorpius, the Scorpion, is in the south, with the ‘teapot’ of Sagittarius to its left. Saturn is to the right of the scorpion’s head. The Summer Triangle is almost overhead. The Great Square of Pegasus now rises soon after dusk, indicating that despite this 100 degree heat, autumn is on the way.

 

Phases10-9x-3w

Moon Phases in August 2015:

Last Quarter: Aug. 6, 9:03 pm

New: Aug. 14, 9:53 am

First Quarter: Aug. 22, 2:31 pm

Full: Aug. 29, 1:35 pm;

The annual Perseid Meteor Shower peaks every year in mid-August—this year on Aug. 13. Remember that this is a shower, not a storm; you can expect a meteor per minute on average. Also, Earth is actually running into the meteor stream, rather than the meteors running into us. This means that the shower gets better as you get closer to dawn. Our George Observatory will be open late Wednesday night, Aug. 12, until 2 a.m. and Thursday, Aug. 13, for viewing the Perseids. 

For the Planetarium schedule, see www.hmns.org

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. I generally do one such tour on short August evenings.

Clear Skies!

 

Seeing Stars with James Wooten: May 2013

Jupiter is now lower in the west at dusk. Face west at dusk and look for the brightest thing there (unless the Moon is also there), as Jupiter outshines all other stars we ever see at night. It appears slightly lower in the sky each night, though, and is gone by the end of the month. As Jupiter leaves the evening sky, Mercury and Venus emerge to join it on Memorial Day weekend. The three planets form a tight triangle May 25-26; Venus and Jupiter are just one degree apart on May 27.

Saturn is now an evening object, shining in the southeast at dusk.  Although not as bright as Jupiter, it does outshine the stars around it, so you can’t miss it.

Mars is still out of sight on the far side of the Sun this month.

Sky Map: May 2013A swath of brilliant winter stars sets in the west at dusk. Orion, the Hunter, is still visible in the west as May begins. His two dogs, represented by Sirius and Procyon, are to his left.  To Orion’s right is Taurus, the Bull, with Aldebaran as its eye. Gemini, the Twins, are above Orion. The Big Dipper is above the North Star, with its handle pointing to the right. From that handle, you can ‘arc to Arcturus’ and then ‘speed on to Spica’; those stars are in the east and southeast at dusk. Leo, the Lion, passes almost overhead in late evening.

As Orion and Taurus set, look for Antares, brightest star of Scorpius, the Scorpion, to rise in the southeast. At the same time, Vega, brightest star of the Summer Triangle, appears low in the northeast. These stars remind us that summer is on the way.

Moon Phases in May 2013:

Last Quarter                 May 2, 6:16 am; May 31, 1:59 pm
New                              May 9, 7:31 pm
1st Quarter                   May 17, 11:35 pm
Full                                May 24, 11:26 pm

The New Moon of May 9 passes in front of the Sun, causing an eclipse. However, the Moon is too far from the Sun to block it completely; the result is an annular eclipse, in which a ring of the Sun’s disk surrounds the Moon. Also, the event is visible only along a path that begins in Australia and extends across the Pacific.

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. I generally do one such tour on short May nights.

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

Go Stargazing! August Edition

Saturn is the only planet visible to the naked eye at night this August.  Face southwest at dusk and you’ll see Saturn near a star of similar brightness—Spica in Virgo.  Saturn is a bit to the right of Spica as you face southwest.   The ringed planet remains well placed for evening viewing and remains in the night sky until late September 2011.

Hubble Images Suggest Rogue Asteroid Smacked Jupiter
Creative Commons License photo credit: NASA Goddard Photo and Video

Mars and Jupiter are in the pre-dawn sky.  Jupiter, set against a background of very dim stars, dominates the southeastern pre-dawn sky and is due south at dawn by the end of the month.  Mars is dimmer and much lower in the east northeast.  It has fully emerged from the sun’s glare and will brighten slightly each morning. Venus is now out of sight.  Superior conjunction (alignment on the far side of the sun) is on August 16.

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 west and southwest at dusk.  Antares, brightest star of Scorpius, the Scorpion, is in the south, with the ‘teapot’ of Sagittarius to its left.  Meanwhile, the Summer Triangle is approaching the zenith.  The stars of summer now dominate the evening sky.  In late evening, you can watch the Great Square of Pegasus rise in the east.

Moon Phases in August 2011:

1st Quarter                     August 6, 6:08 a.m.

Full Moon                       August 13, 1:57 p.m.

Last Quarter                  August 21, 4:56 a.m.

New Moon                      August 28, 10:03 p.m.

The annual Perseid Meteor Shower peaks this year on Saturday morning, August 13.  Unfortunately, the moon (full on the 13th) hides all but the very brightest meteors and thus spoils the show.  If you want to see just how many Perseids can outshine the moonlight, the best hours are from roughly 2 a.m. to dawn.