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FEBRUARY 2010–OBSERVING HIGHLIGHTS

EARTH SATELLITES:

New moon - 13TH

1st  Quarter –  21st

Full moon – 28th

Last quarter – 5th

PLANETS:

JUPITER:  Jupiter slides out of view in February as its orbital motion takes the far side of the sun from our perspective.  On February 1st,   Jupiter sets 100 minutes after sunset.

VENUS :  Venus  may appear around February 10th and shines at magnitude -3.9 and stands 3 degrees above the horizon 15 minutes after sunset.   With binoculars you may pick up Jupiter 5 degrees higher in the bright twilight.  By the 28th, it lies 4 degrees above the western horizon 30 minutes after sunset. It will appear high in the sky late spring.

URANUS:   If you want to spot Uranus, do so in early February before it sinks into the twilight.  On February 1st it lies about 20 degrees above Jupiter. To find Uranus, first locate Lambda Piscium in the circlet asterism of Pisces the Fish.  If you place Lambda at the 1:00 position near the edge of view, the planet will be near the field’s center.

MARS:  Mars is a spectacular object all month.  It reached opposition January 29th and remains near its best throughout February.  You can spot the bright ruddy object in the Eastern sky at dusk, shining at magnitude -1.3 on February 1st.  Mars treks westward against the background stars of Northern cancer. During February it passes 3 degrees north of the Bright Beehive star cluster (M44) the night of
February 6th and 7th.  On the 25th, the moon passes 5 degrees South of Mars.  The best views through a telescope come shortly before midnight  When Mars lies 75 degrees high in the South. The  rth polar cap shows well, because its tilted toward Earth.  Mars’ most prominent dark feature, Syrtis Major, lies near the center of the planet’s disk at 11:00 PM      February 17th.  Also, you will find the asteroid Vesta in Leo.  It reaches opposition and peak visibility February 17 -18 when it glows at magnitude 6.1. You can see it easily through binoculars.

SATURN:  Saturn lies in Virgo.  You will see it low in the East after 10 PM on
February 1st, and after 8 PM at month’s end.  The rings are the most spectacular aspect of Saturn’s telescopic appearance.  They slightly narrow from 5 degrees to 4 degrees this month, but overall tend to widen through 2010.  By year’s end it will be 10 degrees tilt to online of sight.  Look for Saturn’s moons, the brightest which is Titan. You’ll find it just a little north of Saturn on February 2nd with at least a 4” scope you’ll also be able to see Tethys and Rhea.  These will always be close to the planet.   Lapetus take a more leisurely unlingated orbit around Saturn.

MERCURY:   Mercury  the  “Morning Star” shines at -0.2 magnitude and stands 7 degrees high in the South East 30 minutes before sunrise on February 1st  On February 12th, a slender crescent moon passes 4 degrees to Mercury’s left.  The inner most planet disappears into the brightening dawn sky a few days later.  The Delta Leonid meteor shower peaks before dawn February 24th.  Expect to see two to three meteors above the sporadic rate between 4 – 5 PM.  

Comet 81   wind should glow around 9th magnitude as it treks Eastward through Virgo.  In early February it passes about 5 degrees North of Virgo’s brightest star, 1st magnitude Spica.