answersLogoWhite

0


Best Answer

Astronomers discover 'new planet' Sedna, NASA Sedna is currently about 13 billion km from Earth Astronomers have detected what could be the Solar System's 10th planet. It was first seen by astronomers using California's Palomar Observatory, and has been given the name "Sedna" after the Inuit goddess of the ocean. Observations show it measures about 1,180-2,360km (730-1,470 miles) across, making it similar in size to Pluto. Astronomers now say they have evidence that Sedna has its own moon, although this needs to be confirmed, and is also very red in colour. There is likely to be some debate about whether it qualifies as a true planet, but some scientists are already saying it re-defines our Solar System. Further than Pluto Sedna, or 2003 VB12, as it was originally designated, is the most distant object yet found orbiting our Sun. It is three times further away than Pluto (average distance to the Sun is 5.9 billion km or 3.6 billion miles). It was discovered using the Mt Palomar facility in November by astronomers from the California Institute of Technology, Yale Observatory and the Gemini Observatory. Dr Mike Brown of the California Institute of Technology, US, leader of the research team that found the body, said he did not believe it was a true planet. He suggested this "planetoid" is about half rock and half ice mixed together, but further work is needed to verify this. The scientists say that its rotation on itself is relatively slow, suggesting it could have a satellite in orbit around it. Follow-up studies by the Tanagra Observatory have measured the thermal radiation coming from Sedna to determine how hot it is, and therefore provide some estimate of its size. Researchers believe that Sedna's surface temperature is about -240 degrees Celsius (-400 degrees Fahrenheit). Click here to see Sedna's size and distance from the sun This estimate is uncertain but the object is likely to be between half the diameter of Pluto (2,360km or 1,470 miles) and Pluto's size; though some astronomers think it could be larger than the ninth planet itself. From the observations made so far, astronomers have determined Sedna's orbit to be a very large one. It is currently 90 times the Earth-Sun distance away (149 million km or 93 million miles), but its orbit can take it 10 times further away still. Small worlds Although Sedna could be a so-called Kuiper Belt object, its discoverers are unsure if it is as they consider it to be unlike any other object yet found. The KB contains hundreds of known objects and astronomers believe there are many more awaiting discovery. Most are small worlds of rock and ice but some could rival Pluto in size. KUIPER BELT OBJECTS Icy planetary bodies that orbit beyond Neptune in the distant region of the Solar System More than 400 such objects are currently known They are believed to be remnants of the formation of the Solar System and among the most primitive objects available for study In recent years, astronomical work has thrown up several big objects. Quaoar, found in 2002, is about 1,200km (745 miles) across. Ixion, discovered in 2001, is 1,065 km (660 miles) wide. Varuna, detected in 2000, has a diameter of approximately 900 km (560 miles). And only in February this year, scientists picked up the object 2004 DW, which is though to be 1,800km (1,120 miles) across. Is it a planet? The new discovery will reignite the debate about what constitutes a planet. One group of astronomers believe that Pluto is not a true planet but merely one of the largest of a vast number of minor objects in the outer Solar System. The alternative standpoint is that Pluto is a planet and those who believe that will have to classify Sedna as the 10th planet. The name Sedna has been provided by its discoverers. However, if its planetary status is confirmed, it may be that Astronomy's governing body, the International Astronomical Union, will want to reconsider this, to make it more consistent with the mythological names of other planets.

User Avatar

Wiki User

โˆ™ 2005-11-30 02:04:00
This answer is:
๐Ÿ™
0
๐Ÿคจ
0
๐Ÿ˜ฎ
0
User Avatar
Study guides

๐Ÿ““
Create a Study Guide

Add your answer:

Earn +20 pts
Q: Where can you find information on new planets?
Write your answer...
Submit
Related questions

How do telescopes help scientists?

well telescopes has helped scientist find out new information about planets and stars and ect.


Who was find the new two planets?

Kepler and titanus


Is space exploration good?

yes, since we may find life on other planets to study and we are constantly finding new information. If we find life on other planets, and, let's say, they can breathe underwater, and they're similar to us, we could study them to see what makes them like this.


Where can you find information on new planets in 2007?

NASA has an exoplanet archive that you can browse. The year of discovery is one of the data columns that you can add to the list. See links below.


Are there any new planets?

No... There are no new planets!


Did scientist find new planets?

Yes, scientists have discovered many new planets outside the solar system, known as exoplanets. Statistical models indicate there are hundreds of billions of such planets within the Milky Way.


Where can one find more information about new franchises?

You can find information about new franchises online at the Entrepreneur website. Once on the page, click on "Franchises" and then "Top New" to bring up information about new franchises.


Where can I find information on the new Atkins diet plan?

You can find information about the new Atkins diet on the following site: http://www.atkins.com/Homepage.aspx. They have great information.


Which are the new planets?

The new planets that are being discovered are 'extra solar planets', that is planets which are orbiting other stars.


How many new planets?

there is 7 new planets


Where can one find information on Metropolitan New York?

You may be able to find information about the New York metropolitan area at your local vacation agency. You may also be able to find information about the Metropolitan New York in the New York Times newspaper.


Are there fault lines on planets but earth?

No. Earth is the only planet known to have fault lines. but as we exploe new planets we may find some


Where can one find pictures of planets online?

The website "The Planets Today" has a wonderful selection of images which can be seen online. This includes a live view of the line-up of the planets, and also information about the Voyager spacecraft missions.


Where can one find information on the NFL team The New Orleans Saints?

One can find information on the NFL team The New Orleans Saints on their website New Orleans Saints. One can also find information on sites such as CBS Sports and ESPN.


Where can someone find information on New York State taxes?

One can find information on New York State Taxes online at the New York Goverment website. You can also find view information on state taxes online at the IRS website.


Where can someone find more information about the new Windows OS?

One can find more information about the new Windows OS from several different places. Some of the places in which one can find more information about the new Windows OS are: Microsoft, and Sophos.


Where can one find new health administration information?

You can visit your local hospital to find out new health administration information or give them a call. They will have the most up to date information for you.


Where can one find information on the new statesman?

The New Statesman is a British weekly magazine that is dedicated to political and cultural information. One can find information regarding this magazine on sites such as Wikipedia and the New Statesman website.


What information about planets is needed to find life?

Whether the planet has water on it and whether the conditions are liveable for that species.


Where can I find information about the New Orleans Hornets?

You can possibly find information about the New Orleans Hornets by searching for them in a book at the the local library, or even by going to the New Orleans site.


What are the two new planets called?

There are new planets found each year. As of 2014, two of the new planets are Sedna and Kepler-69c.


How can new information be added to science?

scientist make observations and evaluate they data to find new information


Where can you find information about colonial New York?

Where you can find information on this question is to go on google, and type in your question. Then you will find your answer there.


How can you find more information about New Tamil songs?

There are many places where one can find more information about new Tamil songs. Some of the best places to find more information about Tamil songs would be on the website Billboard.


Where can one find information about tours of New Zealand?

One can find information about tours of New Zealand at a website called NewZealand. Another website called Affordable Tours also provides information about tours in New Zealand.