Showing posts with label universe. Show all posts
Showing posts with label universe. Show all posts

Saturday, June 2, 2012

New Solar System discovered !

Hey,
I'm back with a new article, and this time I'll be sharing an article on astronomy and a new planetary system discovered few months ago by NASA, like I've in some of my previous articles (Earth's Duplicate or Giant Planet or Speed of Earth). The new solar system is named as kepler 11, and it was discovered in kepler mission which has already discovered kepler 4,5,6,7,8,9,10. This solar system is almost 2000 light years away from our earth, that is 1.89210568 × 10^16 kilometers or 1.17569996 × 10^16 miles away from center of the earth.
everything under the sun image showing kepler 11 solar system with 6 planets revolving around its star (also known as sun of kepler 11)
This solar system consists of 6 planets, and all of them are larger than Earth in size. The mass of the planets in kepler 11 solar system ranges from 2.3 to 13.5 times mass of earth. You can see following figure to compare the sizes of kepler 11 planetary system and our earth,
everything under the sun image where we are comparing sizes of kepler 11 planets size and mass with earth size and mass
Kepler 11 is the most compact and flattest solar system with more than 3 planets in orbit known to mankind. I said compact because the outermost planet revolves around its sun-like star in 118 days (approximately), that around 0.32 times of the time taken by earth to revolve round the sun. Following figure is a artistic comparison of sizes of kepler 11 solar system and our solar system,
kepler 11 solar system v/s our solar system, that is comparison of kepler 11 planetary system and our solar system
The planets are given name as kepler 11 b,c,d,e,f,g. The heaviest planet is kepler 11b (mass is 13.5 times that of earth) and lightest is kepler 11f (mass is 2.3 times that of earth) in this solar system. Hope you liked this article on astronomy. We will come back with more interesting articles on various topics which comes under the sun, so keep visiting Everything Under the Sun blog for more updates.

Saturday, November 27, 2010

Giant planet discovered outside our galaxy !

Recently astronomers discovered something which can be a great break through in the field of astronomy. They discovered a planet, and named it as HIP 13044b (that is, combination of hydrogen and helium gases, also known as Helmi stream group of stars). It is a gas planet and biggest planet ever discovered by humans !
Also, it is the first planet discovered outside out galaxy, which is around 400 times heavier than earth, that is its mass will be around 400*earth mass =  2.38968 × 10^25 kilograms !! It is around 2000 light years (that is around 1.89210568 × 10^16 Kilometers) away from Earth.

I've summarized the properties of the planet below, you can see them as they are listed :)
Planet name : HIP 13044b
Weight : 25% heavier than Jupiter !
Mass : 400 earth mass =  2.38968 × 10^25 kilograms !
Future : Orbiting around a star, which will be dead soon (as it is in red giant phase) and can consume the planets in its solar system !

Another interesting fact is that till now we (I mean astronomers and scientist) discovered 500 planets in our universe ! and who knows there can another 500 revolving or stationary planets exist in our mysterious universe. Also, there is a possibility that the new planets discovered might be larger than this planet !!

Hope the article for useful and you liked it !!
Comments and feedback are welcomed.. Have fun :)

Monday, October 4, 2010

A planet which is almost Earth's Duplicate !!

Do you know astronomers and scientist have discovered a planet, named Gliese 581g which is almost similar to Earth. And this news was told by team at the University of California, Santa Cruz, and the Carnegie Institution of Washington to the world. The reasons I say almost similar to Earth but not exactly same are as follows,
  1. The planet discovered doesn't belong to our solar system.
  2. The newly discovered planet revolves round the dwarf planet Gliese 581.
  3. Gliese 581g's mass is 3 times that of Earth's mass, that is around 17.9226 * 10^24 kilograms (since earth's mass is 5.9742 * 10^24 kilograms and 17.9226 * 10^24 = 3 * 5.9742 * 10^24).
  4. The average temperature as estimated by the astronomers is from -24 to 10 degrees Fahrenheit, that is around -31 to -12 degrees Celsius.
  5. It is almost 20 light years away from Earth, that is around 1.89210568 × 10^14 Kilometers (since 1 light year=9.4605284 × 10^12 Kilometers).
  6. Gliese 581g is rocky and the gravity is similar to that of Earth.
Now, what is the problem ?
Till now astronomers are not successful in detecting water on this planet.

So, still the biggest question with respect to astronomy is again unanswered, that is Is there any other planet which supports life?

And the mystery of Universe continues !!