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Articles by J. Alex Knoll

Can the Geminids outshine December’s full moon?

The moon lights up the night this week, starting as a waxing gibbous, reaching full moon Tuesday and waxing slowly through the middle of the week. Look for the near-full moon beside the Pleiades star cluster Saturday.
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While never the comet of the century, it piqued our curiosity

It’s official: comet ISON is no more. NASA confirmed Tuesday that after its first-ever venture from the outer limits of the solar system to the sun, the comet did not survive the onslaught of solar radiation. Born 4.5 billion years ago during the formation of the solar system, ISON had resided in the so-called Oort Cloud a full light-year away. Roughly a million years ago, perhaps after a cometary collision, ISON began its journey toward the sun....

See if you can find the naked-eye five

The waning crescent moon rises later and later in pre-dawn skies through the weekend before disappearing behind the sun with Tuesday’s new moon.
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Comet ISON is heading for the sun

If you haven’t looked for Comet ISON yet, now is the time. In just the past few days, the comet has grown more than 15 times brighter and is now visible to the unaided eye low in the east-southeast before dawn.
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Planets and clusters and meteors

As the sun sets around 5pm, Venus blazes in the south-southwest. Our sister planet is at its farthest point east of the sun. But the geometry between Venus, the sun and earth doesn’t add up to a better view, as the evening star climbs only a dozen degrees above the horizon and sets within 90 minutes of the sun. Still, Venus is near impossible to miss, and Thursday evening it is joined by the waxing crescent moon a little higher in the sky.
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September 12, 1951 - October 21, 2013

She rocked Southern Maryland

Not that many years ago, Solomons was a sleepy hamlet without even a stoplight. Situated at the southern tip of Calvert County, the last big noise on the island came from the landing preparations leading to D-Day in World War II. Aside from the world-renowned Tiki Bar, charter fishing and a handful of restaurants, Solomons’ main attraction was its quaint museum.
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Even a partial eclipse can be blinding

The last day of October marks the mid-point between autumnal equinox and winter solstice, one of four cross-quarter days in the passage of the earth around the sun. The day has been recognized for millennia, celebrated as Samhein, The Day of the Dead and All Hallow’s Eve, or Halloween.
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The brightest Evening Star

Sunset finds Venus ablaze low in the southwest before setting by 8pm. There is no brighter planet or star, and so close to the horizon Venus can pulse and shimmer as its light is distorted by our atmosphere. Traveling close to the sun, Venus appears for at most a few hours either after sunset or before dawn. This led early civilizations to believe that the evening star and the morning star were two distinct objects....

Despite a penumbral eclipse, the moon will dampen the Orionid meteors

As the sun sets Friday, the full Hunter’s Moon rises, shining all night long and reaching its highest around midnight. Like last month’s Harvest Moon, the Hunter’s Moon travels its shallowest arc along the ecliptic, rising far to the north of due east and setting far to the south. Rising so much farther to the north than other months, the Hunter’s Moon reappears just 30 minutes later from night to night, as opposed to 50 minutes normally....

Join the fun in International Observe the Moon Night

Saturday, October 12, is International Observe the Moon Night, a global celebration of earth’s only natural satellite. InOMN is overseen by “scientists, educators, and moon enthusiasts [who] believe in the inspirational power of the moon — a celestial body that has influenced human lives since the dawn of time.”
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