Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.astronomy.com/magazine/ask-astro/2012/04/orbital-shapes
Дата изменения: Unknown
Дата индексирования: Sun Apr 10 10:49:58 2016
Кодировка: ISO8859-5
Поисковые слова: arp 220

What would cause Earthт??s orbit to become more circular instead of its present elliptical orbit, and has this ever happened before? | Astronomy.com

ASY160501

Login or Register |

Customer Service

Tonight's Sky

Sun

RISEт??

SETт??

Sun

Moon

т??

т??

PHASEт??

DISKт??

Mercury

RISEт??

SETт??

Mercury

т??

Venus

т??

т??

Venus

т??

Mars

RISEт??

SETт??

Mars

т??

Jupiter

т??

т??

Jupiter

т??

Saturn

т??

т??

Saturn

т??

Tonight's Sky т?? Change location

City/place name

US state, Canadian province, or country

OR

US ZIP code

Searching...

Tonight's Sky т?? Select location

Tonight's Sky т?? Enter coordinates

Latitude: ТА '

Longitude: ТА '

UTC Offset:

Home
/
Magazine
/
Ask Astro
/
What would cause Earthт??s orbit to become more circular instead of its present elliptical orbit, and has this ever happened before?

submit to reddit

FROM THE June 2012 ISSUE

What would cause Earthт??s orbit to become more circular instead of its present elliptical orbit, and has this ever happened before?

Bo Hill, Peachtree City, Georgia

Published: Monday, April 23, 2012

Earth

NASA/NOAA/GSFC/Suomi NPP/VIIRS/Norman Kuring

Gravitational interactions among the planets cause the ellipticities of the orbits to oscillate periodically by a few percent over millions of years.

Already a subscriber? Register now!

Registration is FREE and takes only a few seconds to complete. If you are already registered on Astronomy.com, please log in below.

Register now for free

Already Registered?

Click here to log in to your account »

YOU MIGHT ALSO LIKE

81005

The Sun's Heartbeat

69092

The Worlds Greatest Telescopes

The World's Greatest Telescopes

yhst22106725251441_2270_192084238

Cosmology's Greatest Discoveries

appleappstore512

yhst22106725251441_2270_129134122

100 Most Spectacular Sky Wonders

ASYPDF001

Celestial Protraits Download

yhst22106725251441_2271_317432501

Atlas of the Stars

PIA20070_ip

Searching for Far Out and Wandering Worlds

comet_evolution_web

An artificial comet holds secrets to Earths life

JupiterAnalogPic3

Young super-Jupiter found wandering without a parent

POPULAR

Searching for aliens who already know we're here

A gamma-ray burst hints that LIGO's double black holes started as one massive star

Pluto's largest moon may have once had an ocean

2016ICE_BEAUTY

Tour Iceland's fire, ice, and aurora with Astronomy!

200x133_eclipseBanner

Join Astronomy for America's 2017 total solar eclipse!

FREE EMAIL NEWSLETTER

Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter.

Sign up

Follow us:

THE MAGAZINE

ASY160501

Table of Contents
Subscribe
Digital Editons

asy_gravitational_eguide

Click here to receive a FREE e-Guide exclusively from Astronomy magazine.

Find us on Facebook

Astronomy Magazine