Winter has prime-time stargazing
February stargazing is fantastic for many reasons. Sure, it's not as
comfortable for stargazers living with the winter cold, but the extra
special celestial jewels make it so worth bundling up for! If you're not
already in the darker countryside, try to get out there. But even with
light-polluted skies, I know you'll still like what you see.
If you were lucky enough to receive a telescope under the
Christmas tree, now's the time to see its first light. Too many folks
wait until springtime to test drive their new scopes. That's a mistake!
You'll miss out on many wonderful celestial treasures, and you'll have
to stay up later to begin your astronomical fun.
Orion the Hunter and his posse of constellations are the main
attraction as far as I'm concerned. They start out in the southeast
Butler sky at nightfall and reach their peak altitude above the
southern horizon by around 9 p.m. The constellations surrounding
Orion are Gemini the Twins, Canis Major and Minor (the big and little
dogs, respectively), Auriga the sheep-schlepping retired chariot
driver, Taurus the Bull, and Lepus the Rabbit. Without a doubt, Orion
and his gang have the most extensive collection of bright stars
assembled anywhere across the night sky in the Northern
hemisphere.
Within these winter shiners are great telescope targets. The very
best one is the Orion Nebula, easily spotted in the sword of Orion.
Look below the three iconic bright stars in a row that make up
Orion's belt for a line of three fainter stars that depict his sword.
Even with the naked eye in areas of light pollution, you can see that
the middle star in the sword is a bit fuzzy. This fuzzy star is the Orion
Nebula, a vast cloud of hydrogen gas lit up like a fluorescent lamp by
young stars gravitationally born inside it. Through a small telescope
or pair of binoculars, you can see a lot more detail, including four of
these stars in a trapezoid pattern dubbed, appropriately, the
Trapezium.
In the eastern sky, there are already signs of spring. The mighty
constellation Leo the Lion is on the prowl westward. The chest and
head of Leo resemble a backward question mark, with the
moderately bright star Regulus marking the heart of the big cat. As
early evening turns to the late evening, it looks as if Leo is chasing the
winter constellations toward the western horizon.
In the northern skies is the Big Dipper, the bright rear end and tail of
the constellation Ursa Major, the Big Bear. The Big Dipper is standing up on
its handle in the low north-northeast sky. In the high northwest, a giant
upside-down "W" outlines the throne of the constellation Cassiopeia the
Queen. The Queen is tied up in her throne because she bragged that she
was more beautiful than Hera, queen of the Greek gods, and owner of the
most enormous ego in history. Depending on your latitude, you can see
those constellations and a few others every night as they make a tight
circle around the North Star Polaris that shines above the Earth's north
pole.
If you're a fan of evening planet viewing, I'm afraid you're pretty much
shut out this month. In early February, only Jupiter is barely visible in the
early evening as twilight ends, in the low western sky just above the
horizon. In the predawn morning, the planet watching is a little better. The
very bright planet Venus dominates the low southeast sky just before
twilight begins. For most of the month, the much fainter planets Mars and
Mercury join Venus. Unfortunately none of these planets are great
telescope targets. They'll appear super fuzzy because of the blurring effect
of Earth's atmosphere because they're so close to the horizon. Venus is
never a good target because it's completely shrouded in clouds. What
makes watching Venus fun though is that it goes through phases like our
moon because its orbit around the sun lies within the Earth's orbit. This
month Venus is crescent-shaped.
Despite the planets not putting on a very good show, it's still an amazing
celestial show this month. Enjoy it!!
———
Mike Lynch is an amateur astronomer and retired broadcast
meteorologist for WCCO Radio in Minneapolis/St. Paul. He is the author
of "Stars: a Month by Month Tour of the Constellations," published by
Adventure Publications and available at bookstores
and adventurepublications.net. Contact him at mikewlynch@comcast.net.