dwarf planet has a ring to it study
Last Updated : GMT 12:24:11
Arab Today, arab today
Arab Today, arab today

to debunk the theory

Dwarf planet has a ring to it: study

Arab Today, arab today

Arab Today, arab today Dwarf planet has a ring to it: study

Haumea and its ring system with correct proportions for the main body and the ring.
Paris - Arab Today

Move over Saturn! Scientists have found a ring around an unassuming mini-planet in our Solar System to debunk the theory that only giant planets can be so adorned.

The planet, dubbed Haumea, orbits the Sun far beyond Neptune -- the eighth and furthest recognised "full" planet in our star system since Pluto was downgraded to dwarf status in 2006.

About eight billion kilometres (five billion miles) from the Sun, Haumea spins rapidly on its own axis, and has a flattened, cigar-like shape.

It takes 285 years to circle the Sun.

Named after the Hawaiian goddess of childbirth, it is among a handful of known dwarf planets beyond the orbit of Neptune, which with the other so-called giant planets -- Saturn, Uranus and Jupiter -- all have rings.

"Our discovery proves that there is a lot more diversity and imagination in our solar system than we had thought," study co-author Bruno Sicardy of the Paris Observatory told AFP.

The findings were published Wednesday in the journal Nature.

A ring system had previously been discovered around a centaur dubbed Chariklo. Centaurs, which have unstable orbits, are considered large comets, not planets, which means this is the first observation of a ring around a dwarf planet.

The new discovery came when Sicardy and a team predicted that Haumea would cross in front of a specific star, from Earth's perspective, on January 21 this year.

They trained 12 telescopes at 10 different laboratories on the spot, and were able to measure many of the physical characteristics of the little-known planet discovered in 2004.

Scientists can infer much about a planet's density and size by how much light it blocks out as it moves in front of a star.

In Haumea's case, they found it sported a dense, Saturn-like ring some 70 kilometres wide, made of frozen particles.

Source: AFP

arabstoday
arabstoday

GMT 03:08 2018 Wednesday ,24 January

Microsoft to open 4 data centres

GMT 04:04 2018 Sunday ,21 January

Europe's space agency braces

GMT 02:55 2018 Thursday ,18 January

French glitches put technology under review

GMT 02:22 2018 Wednesday ,17 January

Bitcoin bombs, cryptocoins crash

GMT 06:18 2018 Saturday ,06 January

Tech firms battle to resolve major security flaw
Arab Today, arab today
Arab Today, arab today

Name *

E-mail *

Comment Title*

Comment *

: Characters Left

Mandatory *

Terms of use

Publishing Terms: Not to offend the author, or to persons or sanctities or attacking religions or divine self. And stay away from sectarian and racial incitement and insults.

I agree with the Terms of Use

Security Code*

dwarf planet has a ring to it study dwarf planet has a ring to it study

 



Name *

E-mail *

Comment Title*

Comment *

: Characters Left

Mandatory *

Terms of use

Publishing Terms: Not to offend the author, or to persons or sanctities or attacking religions or divine self. And stay away from sectarian and racial incitement and insults.

I agree with the Terms of Use

Security Code*

dwarf planet has a ring to it study dwarf planet has a ring to it study

 



Arab Today, arab today
Arab Today, arab today Skincare PR Performance Full Year 2017

GMT 10:35 2018 Monday ,22 January

Skincare PR Performance Full Year 2017
Arab Today, arab today New hunt for flight MH370 gets under way

GMT 02:36 2018 Wednesday ,24 January

New hunt for flight MH370 gets under way
Arab Today, arab today Modern colorful bedroom renovation

GMT 11:23 2017 Thursday ,21 December

Modern colorful bedroom renovation
Arab Today, arab today France sanctions businesses linked

GMT 01:58 2018 Wednesday ,24 January

France sanctions businesses linked
Arab Today, arab today Turkey detains dozens more

GMT 02:09 2018 Wednesday ,24 January

Turkey detains dozens more
Arab Today, arab today The Rake announces editorial updates

GMT 12:19 2018 Tuesday ,16 January

The Rake announces editorial updates
Arab Today, arab today Europe brings on charm and blue skies

GMT 06:12 2018 Tuesday ,23 January

Europe brings on charm and blue skies
Arab Today, arab today For the Variety of Interior Design Styles

GMT 11:14 2017 Tuesday ,19 December

For the Variety of Interior Design Styles
Arab Today, arab today Puigdemont candidate for Catalan president

GMT 05:31 2018 Tuesday ,23 January

Puigdemont candidate for Catalan president
Arab Today, arab today Amazon to open first cashierless shop

GMT 05:52 2018 Tuesday ,23 January

Amazon to open first cashierless shop

GMT 13:36 2017 Friday ,22 December

Iraqi troops killed six ISIS militants in Mousl

GMT 12:33 2017 Friday ,22 December

Yara denies presenting new talk show

GMT 01:00 2017 Wednesday ,20 December

Saudi and Russia expnad food integration

GMT 14:33 2017 Tuesday ,19 December

German business morale eases back from record high

GMT 12:32 2017 Tuesday ,19 December

UK weather: The latest Sky News forecast

GMT 04:53 2017 Tuesday ,19 December

Egypt’s government signs agreement with Switzerland

GMT 04:27 2017 Tuesday ,19 December

Tensions dominate the Iranian parliament amid fears

GMT 11:35 2017 Monday ,18 December

Putin appreciates U.S intelligence cooperation

GMT 08:05 2017 Monday ,18 December

Mona Zaki reveals details of her new show

GMT 17:32 2017 Sunday ,17 December

Polls open in Chilean presidential election

GMT 07:16 2017 Sunday ,17 December

Yasmine Underlines importance of Fatimid Cairo

GMT 20:34 2018 Saturday ,20 January

Bahrain press headlines

GMT 22:38 2018 Tuesday ,23 January

Bahrain Press headlines

GMT 07:22 2017 Thursday ,23 November

Zimbabwe's next leader heads home after Mugabe exit

GMT 07:23 2017 Thursday ,23 November

Zimbabwe's next leader heads home after Mugabe exit

GMT 16:25 2016 Thursday ,22 December

Italian bank Monte Paschi edges closer to state bailout

GMT 06:41 2018 Saturday ,17 March

testing from boss1

GMT 09:12 2017 Friday ,17 November

Gleam Futures represents Grace Beverley

GMT 06:03 2014 Wednesday ,09 April

Please .. Let Gaza breathe!

GMT 16:33 2014 Thursday ,13 November

Al-Ehtimam Bil Aakhareen

GMT 06:00 2017 Sunday ,29 October

Childrenswear brand Once appoints Dyelog

GMT 16:03 2017 Thursday ,21 December

US hits Myanmar general in new global rights sanctions
Arab Today, arab today
Arab Today, arab today
 
 Arab Today Facebook,arab today facebook  Arab Today Twitter,arab today twitter Arab Today Rss,arab today rss  Arab Today Youtube,arab today youtube  Arab Today Youtube,arab today youtube
arabstoday arabstoday arabstoday arabstoday
arabstoday arabstoday arabstoday
arabstoday
بناية النخيل - رأس النبع _ خلف السفارة الفرنسية _بيروت - لبنان
arabstoday, Arabstoday, Arabstoday