Journal Express, Knoxville, IA

Community News Network

January 7, 2013

Comets could light up 2013 skies

OTTUMWA — It has been a very long time since backyard astronomers of the northern hemisphere have had a year like 2013 could become.

Space experts say there's a good chance people could see two major comets over the course of the year. The objects, called Comet Panstarrs and Comet Ison, could well be the brightest to observers north of the equator since Comet Hale-Bopp in 1997.

That's if everything goes right, though. Comets are notoriously unpredictable. There was a huge amount of hype for Halley's Comet, the best known visitor, last time it passed Earth. But the 1986 flyby generated a smudge in the sky that didn't live up to people's expectations.

According to earthsky.org, the closest Panstarrs will get is March 5, when it will be slightly farther away from us than the sun. The closest it will get to the sun comes five days later, and that's when the comet will likely be brightest. At best, it should be visible to the naked eye.

The second comet, Ison, which will pass by in late 2013, is the one experts believe could be the most spectacular in decades. But that potential comes with significant risk. Ison, according to Nasa, is expected to be a sungrazer. That means it will come very, very close to the sun's surface.

If a sungrazer holds together, the proximity means it takes a lot of heat, which should create a very large and luminous tail. Some experts say it could temporarily be as bright as a full moon.

But the full force of the sun can also tear sungrazers apart, which would effectively turn off the show. And that could happen well before people get a good look at it.

It's too soon to know whether either of the comets will live up to expectations. But if either one does, it could be a year to remember.

1
Text Only
Community News Network
  • Sunburn isn't the only sign of summer that can leave you itchy and blistered

    You've got a rash. You quickly rule out the usual suspects: You haven't been gardening or hiking or even picnicking, so it's probably not a plant irritant such as poison ivy or wild parsnip; likewise, it's probably not chiggers or ticks carrying Lyme disease; and you haven't been swimming in a pond, which can harbor the parasite that causes swimmer's itch.

    July 30, 2014

  • Survey results in legislation to battle sexual assault on campus

    Missouri U.S. Sen. Claire McCaskill joined a bipartisan group of senators Wednesday to announce legislation that aims to reduce the number of sexual assaults on college campuses.

    July 30, 2014

  • An alarming threat to airlines that no one's talking about

    It's been an abysmal year for the flying public. Planes have crashed in bad weather, disappeared over the Indian Ocean and tragically crossed paths with anti-aircraft missiles over Ukraine.

    July 30, 2014

  • Sharknado.jpg Sharknado 2 set to attack viewers tonight

    In the face of another "Sharknado" TV movie (the even-more-inane "Sharknado 2: The Second One," premiering Wednesday night on Syfy), there isn't much for a critic to say except to echo what the characters themselves so frequently scream when confronted by a great white shark spinning toward them in a funnel cloud:
    "LOOK OUT!!"

    July 30, 2014 1 Photo

  • 20140729-AMX-GIVHAN292.jpg Spanx stretches into new territory with jeans, but promised magic is elusive

    The Spanx empire of stomach-flattening, thigh-slimming, jiggle-reducing foundation garments has expanded to include what the brand promises is the mother of all body-shaping miracles: Spanx jeans.

    July 29, 2014 1 Photo

  • Medical marijuana opponents' most powerful argument is at odds with a mountain of research

    Opponents of marijuana legalization are rapidly losing the battle for hearts and minds. Simply put, the public understands that however you measure the consequences of marijuana use, the drug is significantly less harmful to users and society than tobacco or alcohol.

    July 29, 2014

  • linda-ronstadt.jpg Obama had crush on First Lady of Rock

    Linda Ronstadt remained composed as she walked up to claim her National Medal of Arts at a White House ceremony Monday afternoon.

    July 29, 2014 1 Photo

  • Can black women have it all?

    In a powerful new essay for the National Journal, my friend Michel Martin makes a compelling case for why we need to continue the having-it-all conversation.

    July 29, 2014

  • Dangerous Darkies Logo.png Redskins not the only nickname to cause a stir

    Daniel Snyder has come under fire for refusing to change the mascot of his NFL team, the Washington Redskins. The Redskins, however, are far from being the only controversial mascot in sports history.  Here is a sampling of athletic teams from all areas of the sports world that were outside the norm.

    July 28, 2014 3 Photos

  • 'Rebel' mascot rising from the dead

    Students and alumni from a Richmond, Va.-area high school are seeking to revive the school's historic mascot, a Confederate soldier known as the "Rebel Man," spurring debate about the appropriateness of public school connections to the Civil War and its icons.

    July 28, 2014

Features
AP Video
Visitors Feel Part of the Pack at Wolf Preserve 3 People Killed, Deputies Wounded in NC Shootout Suing Obama: GOP-led House Gives the Go-ahead Obama: 'Blood of Africa Runs Through My Veins' Amid Drought, UCLA Sees Only Water Texas Scientists Study Ebola Virus Smartphone Powered Paper Plane Debuts at Airshow Air Force: Stowaway Triggers Security Review Minnesota Fire Engulfs Home, Two Garages Southern Accent Reduction Class Cancelled in TN Obama Chides House GOP for Pursuing Lawsuit New Bill Aims to Curb Sexual Assault on Campus 3Doodler Bring 3-D Printing to Your Hand Six PA Cops Indicted for Robbing Drug Dealers Officials Unsure of UCLA Flood Repair Date At Least 20 Chikungunya Cases in New Jersey Raw: Obama Eats Ribs in Kansas City Broken Water Main Floods UCLA Raw: Amphibious Landing Practice in Hawaii In Virginia, the Rise of a New Space Coast
Facebook
Hyperlocal Search
Premier Guide
Find a business

Walking Fingers
Maps, Menus, Store hours, Coupons, and more...
Premier Guide
Poll

Upon completion and reopening of Third Street, should the City of Knoxville wait to start the next stage of the Streetscape and Infrastructure project until 2015?

Yes
No
     View Results