While scientists can't come up with an exact number, they can at least come up with close ... to create a 3D map of the known universe. It is 10 million light-years across to put this in context, understand that one light year is about 9.5 trillion kilometres (5.9 trillion miles), so times that by 10 million to get the distance from one side to the other. Around 40 light-years away, seven Earth-sized planets have been spotted orbiting closely around a small, ultra-cool star. Jan 5, 2013 ... My point is this: if you want to accurately estimate how many planets there are in our ... And remember, our galaxy isn't alone in the Universe. Answered May 29, 2017. Jan 5, 2013 ... My point is this: if you want to accurately estimate how many planets there are in our ... And remember, our galaxy isn't alone in the Universe. Solar System Planets: Order of the 8 (or 9) Planets. The Local Group is made up of 54 galaxies, and this includes our Milky Way. ... How many planets are there in our universe now aday? Some people get pretty grumpy when you ask: how many planets are in the Solar System? The Universe is out there, ... Science 10/07/2017 @ 10:00AM 3,346 views ... How many planets are there in our galaxy? There are eight planets in the solar system: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. Again, lets take the middle position - 250 billion. how many planets are there Currently eight, but there is widespread belief that a previously unsuspected Planet Nine exists. - Saturday, August 12, 2017 at Toyota USA Automobile Museum, Torrance, CA. 2017. The number of stars in a galaxy varies, but assuming an average of 100 billion stars per galaxy means that there are about 1,000,000,000,000,000,000,000 (thats 1 Eventbrite - IEEE CLAS Life Members Affinity Group presents Are we alone in the Universe? Answered Mar 22, 2017. Scientist wont be able to figure out the exact number. Originally Answered: How many planets are there in the universe? (See How Many Stars Per Galaxy?). ... How Many Planets are in the Solar System? The Milky Way is also believed to have a similar number of planets. There used to be nine planets. 2018 How Many Planets Are in Our Solar System? Estimates for the Milky Way range from 100 billion to 400 billion. The four inner solar system planets (Mercury, Venus, Earth, and Mars) fall under the category of terrestrial planets; Jupiter and Saturn are gas giants (giant plants composed mostly of hydrogen and helium) while Uranus and I find this odd. Their estimate of how many galaxies the observable universe has? Im just going to warn you, this is a controversial topic. Based on these calculations, scientists estimate that the Milky Way contains between 100 and 400 billion stars (though some think there could be as many as a trillion). Jan 5, 2013 ... My point is this: if you want to accurately estimate how many planets there are in our ... And remember, our galaxy isn't alone in the Universe. More than 1000 tutors online! About 7.6% percent of those stars are class G stars (like our Sun). If we included those instead, the number of planets in our galaxy would likely increase by anywhere from a factor of a hundred to a million, meaning there are probably between 10^15 and 10^19 planetary bodies, total, within our galaxy. Next question: How many stars are there in an average galaxy? Our own Sun has at least eight 2017. . Find answers on: How many planets in the universe can support life? How many planets are there in the Local Group? 2018 How Many Planets Are in Our Solar System? There also are estimation hurdles that must be overcome. Now there are ... are currently visible in the night sky in June 2017.