What is the closest pulsar to earth?
The closest known pulsar to Earth is "PSR J0108-1431". It lies in the direction of the constellation Cetus, at a distance of about 85 parsecs (or 280 light years).
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The closest star to earth is the one we call "the sun", about 93 million miles away. The next closest one is Proxima Centauri, about 25.9 million million miles away.
A supernova leaves behind a tiny object termed a neutron star, which is far smaller than the Earth. It is the core of the star that exploded. The protons and electrons of its atoms have been squashed together by the force of the supernova, and they form the atomic particles known as neutrons. A n…eutron star is unimaginably dense. It contains the mass of the Sun, but has that mass squeezed into a ball perhaps 20km (12 1/2 miles) across. Further, neutron stars are so small that they can spin very rapidly, many times per second or faster. When they spin they emit electromagnetic radiation which can appear as flashes from earth. If the magnetic pole of the neutron star is "pointed" [See related link - Pictorial of pulsar] towards Earth, they are called pulsars, as they "pulse" as they spin and can be detected. The flashes produced by the pulsars are detected as the electro magnetic radio waves caught up by the radio telescopes The most notable pulsar is PSR B1919+21 with a period of 1.3373 seconds. When it was first discovered it was dubbed "LGM 1" for little green men 1, as the astronomers believed that only extraterrestrial life could generate such a precise signal. See related links for more information. The Pulsar is a car model by Nissan, but this question is in the Category of Astronomy, and its answer reflects that. (MORE)
91,405,436 at perigee, which is the point that the earth is closest to the sun. Note: . The term would be perihelion for a body orbiting a sun. It is the same concept as perigee. The moon, orbiting around the earth, has an apogee and perigee.
Every planet revolves around the sun, each one taking a different amount of time to complete one revolution. So the distance between Earth and any other planet changes over a wide range, depending on whether we're both on the same side of the sun or on opposite sides. At any given time, the planet… closest to Earth could be either Mercury, Venus, or Mars. Jupiter (the next planet out) at its closest is further away than Mercury or Venus at their furthest, so it has to be one of those three. The planet that can be closest to Earth when we're both in the same part of our orbits is Venus . The minimum distance between us and Venus is about 25.5 million miles, or about 28% of the distance from earth to the sun. ====== While we're on the subject, this is also a good time to mention Mars . After Venus, Mars is the next nearest planet to Earth. When everything is right, the closest Mars can get to the earth is about 48.5 million miles. That's more than half the distance from Earth to the sun; at that distance, it takes light (and radio communication with the two rovers on the surface) a little over 4 minutes to travel between Mars and Earth. And that's the closest that Mars can be to Earth. The next time this will happen will be next January (2010). The night of January 29 th will be an exceptionally fine time to go out and have a look. In the weeks or months before that date, you're sure to hear the usual rumors and scare stories about how Mars is coming so close to the earth that it'll appear bigger than the moon, and life as we know it will come to an end. Go out and see it any time after sunset on January 29th, just a few hours after the true minimum approach, and you'll see Mars just above the full moon. It'll be red, and really bright ... for Mars ... but nowhere near the size or brightness of the moon, looking a lot more beautiful than dangerous. If life as we know it does not come to an end that night, please remember that you heard it here first, and then go back inside and sleep well. OVERALL VENUS IS THE CLOSEST FOR THE LONGEST TIME Venus is the closest planet to the Earth EDIT: Mercury travels closer than mars at the minimum distance of 44,7 million km. Venus. (MORE)
If they were all lined up in a line on the same side of the sun the distances form the sun would be: Mercury 0.387 A.U. Venus 0.723 A.U. Earth 1.000 A.U. Mars 1.524 A.U. Jupiter 5.203 A.U. Saturn 9.523 A.U. Uranus 19.208 A.U. Neptune 30.087 A.U. This shows that Venus would be 0.2…77 AU. form Earth while Mars would be 0.524 AU. which makes Venus the closest planet to Earth. HOWEVER - all the planets move round the Sun at different speeds and this means that Earth and Mars could be on the same side of the Sun while Venus was on the other side. In this configuration Venus would be 1.723 AU from Earth while Mars was 0.524 AU. and Mars would then be closest. Using the distances provided above why don't you try and work out configurations for Mercury and Jupiter - could they ever be the closest planet? (MORE)
Technically speaking, the sun is the closest star to Earth. . The next closest known star to the Earth is Proxima Centauri , red dwarf star approximately 4.2 light years from Earth ... only about 278,000 times as far from us as the Sun is. See the related link below for further information ab…out Proxima Centauri. . The next two closest known stars comprise the binary star system called Alpha Centauri . Alpha Centauri is 4.4 light years from Earth. . It is postulated that another star, a red or brown dwarf star, closer to the Earth than Proxima Centauri, orbits the sun in a highly elliptical orbit. This possible star is code named Nemesis . See the related link below for further information about a companion star. That would be the Sun, an average everyday star. The next closest star to earth is Alpha Centauri, which is only four light-years away. (MORE)
On August 27, 2003 Mars was only 55,758,006 kilometres away from the earth. The last time it was that close was September 12, 617 BC The next time it will be that close will be August 24, 2287
The planet that can get closest to the Earth is Venus. When it is at its closest (inferior conjunction) it gets as close as 41 million km. The planets are orbiting the sun at different rates though, the closer they are to the sun, the faster they orbit. This movement relative to each other means tha…t sometimes Mercury may be the closest planet, sometimes Venus and sometimes Mars. One of these inner planets maybe on `our` side of the solar system, while the other two maybe on the other side. As of 1-June-2011 (for example) Mercury is the closest, with Earth on one side of the solar system and Mercury, Venus and Mars on the opposite side (the sun is actually closer than any of the other inner planets as of this date). (MORE)
Proxima Centauri is the closest to Earth, at 4.243 LY. AlphaCentauri, its close neighbor, is 4.37 LY away from us.
here is a picture of our solar system.Venus and Mars surround us, but Mars is closer.I got this pic from a website called revisionworld.com . The Solar System .
None. All planets have very different temperatures at the surface. Mercury's Maximum Temperature 465Â°C (870Â°F) Mercury's Minimum Temperature -184Â°C (-300Â°F) Venus' Average Temperature 449Â°C (850Â°F) Earth's Average Temperature 7.2Â°C (45Â°F) Mars's Maximum Tempera…ture 36Â°C (98Â°F) Mars's Minimum Temperature -123Â°C (-190Â°F) Jupiter's Average Temperature -153Â°C (-244Â°F) Saturn's Average Temperature -184Â°C (-300Â°F) Uranus' Maximum Temperature -184Â°C (-300Â°F) Neptune's Average Temperature -223Â°C (-370Â°F) (MORE)
No. The moon is not a star. The Sun is the closest star to Earth.
The sun (also known as Sol), which is also a star, is the closest to Earth. Other than the sun, the closest star is called Proxima Centauri, and it is about four and a half light years away, or about 32 trillion miles away. That's the closest.
A Pulsar or Neutron Star is the remnants of a collapsed Super Giant, created during a Super Nova. The neutrons are so densely packed that they warp the gravity around the dying star so that any radiation (radio waves) emitted from it doesn't always shine at us. Due to this warping the star becomes m…ore like a light house and we can only see the beam when it is pointing straight at us. This constant on of is like a pulse hence the name Pulsar. (MORE)
The Sun of our solar system behind that is Proxima Centari at 4.2 light years away
The Troposphere is nearest and extends from the surface of the earth to approximately 10 thousand metres above the surface. This explains why the air is described as being 'thin' when at the top of some of the highest mountains of the World. Hope this helps.
NEWER! It is always further away from the Sun than Neptune which is 30 further from the Sun than Earth.
The Sun. The next closest star is located around 4 light years away from us and is named Proxima Centurai.
Its orbital period is 4.60 years; since that is not an exactmultiple of the Earth year, the closest approach is not at the samedate every year. You can check astronomical sites for "oppositionof Ceres"; the closest approach is usually close to the opposition.For example, in 2016, Ceres was in opposi…tion on 21 October. (MORE)
the moon is closer and is almost 240 thousand miles from earth the sun is about 93 million miles from earth
The earth is closest to the sun when it's at the point of "perihelion" in its orbit. In 2010, that moment was on January 3.
Ceres. It's the largest object in the asteroid belt, which lies between Mars and Jupiter, and the only asteroid massive enough to become approximately spherical in shape - one of the requirements to achieve dwarf planet status. The other 4 confirmed dwarf planets, including Pluto, are all much furth…er out beyond the orbit of Neptune. (MORE)
Much has been made of the fact that the August 27th encounter with Mars is the closest in some 60,000 years. Neanderthals were the last to observe Mars so favorably placed. This is true. It's also a bit of hype. Mars and Earth have been almost this close many times in recent history. Some examples: …Aug. 23, 1924; Aug. 18, 1845; Aug. 13, 1766. In each case Mars and Earth were approximately 56 million km apart. (MORE)
Yes. Currently, the earth is reaching perihelion sometime during the first week or so of January each year.
Hardly any - they are very far away. However, a supernova (which would come before a neutron star) could have catastrophic effects on Earth, if it were to happen in our neighborhood (up to a few thousand light years!).
Mars rotation period is the closest to Earth with a sidereal period of only 24.6229 Earth hours.
Those that are closest are the closest stars to earth. The champion closest star ... the closest of all of them ... is the sun. Coming in at a distant second place, the next closest star is 278 thousand times farther from earth than the sun is.
The `perihelion` is when a planet is closest to the sun in its orbit around the sun. for earth, this usually happens between 2nd-5th January each year.
No. Generally speaking, Venus is the closest planet to Earth. The actual distance that Venus is from Earth varies, depending on where it is during its orbit around the sun relative to that of Earth. When Venus and Earth are on the same side of the sun, they are 38.2x10 6 km apart; when they are on… opposite sides of the sun, they are 261.0x10 6 km apart. Mars is the second planet closest to Earth. However, if Venus is on the opposite side of the sun, Mars could temporary be closest to Earth. Mars's distance from Earth varies, from 55.7x10 6 km when they are both at the same side of the sun, to 401.3x10 6 km, when they are on opposite sides of the sun. (MORE)
A Pulsar is a highly magnetized, rotating neutron star that emit a beam of electromagnetic radiation . This can only be seen if the "beam" is pointing towards Earth.
The Earth is inside the Milky Way Galaxy. The closest other known galaxies are the two "clouds of Magellan", which are small galaxies that orbit the Milky way. The closest other large galaxy, about the size of the Milky Way, is the Andromeda Galaxy. Andromeda is the nearest galaxy to Earth. Ans…wer: We are in the Milky Way galaxy which makes it closest to Earth. After that we have the dwarf galaxies Canis Major Dwarf and the Sagittarius Dwarf Sphr SagDEG. The nearest major galaxy would be the Large Magellanic Cloud. The Canis major dwarf Galaxy is about 42,000 light years from the and a mere 25,000 light years from us (which puts it closer to us than the center of our own galaxy, which is 30,000 light years away from the galactic center solar System). The Andromeda galaxy. Andromeda is not the closest galaxy to ours. It is one of the closest large galaxies. As far as "I" have read the closes is the Canis Major Dwarf Galaxy followed by the Sagittarius Dwarf Elliptical galaxy... There are also MANY others that are closer than Andromeda. (MORE)
The closest one is the sun. The next closest one is Proxima Centauri, 4.2 light years away. It's a small red dwarf star. It's about 15,000 times more distant than the sun is to earth.
Difficult to know for sure. Brown dwarf stars are small and dim, and it's possible that there is one relatively close by that we've never noticed. The nearest known brown dwarf star is Epsilon Indi Bb, one of two brown dwarf stars orbiting the star Epsilon Indi. It would not be detectable at all …if it were not so close to the parent star, and it is possible that there are other solitary brown dwarf stars that are closer. Epsilon Indi is about 12 light-years away. In fact, there have been suggestions that a brown dwarf star tentatively named "Nemesis" may be distantly orbiting the Sun, occasionally coming close enough to perturb clusters of comets from the Oort Cloud and dropping them into the inner solar system. Nothing like this has been discovered, however, and the idea has been generally discredited. (MORE)
When Mars changes its orbit and eventually demolishes itself the earth will be closest to Venus
That would probably be Venus, though there is room for debate there. Answer: Mars and Venus are our closest neighbouring planets. At its closest, Venus is 41,840,000 km away. The minimum distance to Mars is 56,000,000 km. Venus is more than 10 million kilometers closer than Mars.
The planet that's able to come closest to Earth is Venus. The next one after Venus is Mars.
The sun is always by far the closest, regardless of time of day. The next nearest star is Proxima centauri, over 4 lightyears away.
Earth is a planet, not a star; it can never be a pulsar. For an excellent description of what life might be like on the surface of a pulsar, read the boon "Dragon's Egg" by Dr. Robert Forward.
Pulsars are neutron stars that are formed when a large star burns up its fuel and collapses on itself. The process happens when fuel is exhausted so that the star cannot produce heat energy which causes it to expand. Gravity causes it to collapse and then when it is suddenly so compacted the heat be…comes so intense that it suddenly blows up because of uncontrollable nuclear fusion. The compressed core remains (neutron stars) and it spins on its axis with a beam of radiation and light coming from it. When the light goes in your direction you see a flash so that is why it is called a pulsar. Do you think I am a nerd? (MORE)
Thanks to its high altitude and the equatorial bulge of the planet, the city of Quito, Ecuador, is the closest city to the Moon. But it is only one-thousandth of a percent closer than Denver, Colorado or Mexico City.
Proxima Centauri, a red dwarf star in the constellation of Centaurus, is the nearest known star to the Earth after the Sun. It is 4.2 Light Years away.
Sun is the closest star to our Earth ( about 92.9 million miles away ) and it has everything to do with the earth . Sun is the father of entire solar system. Without sun there is no light, no heat energy and up above the all life isn't possible . so bow to the master .
Pluto, Neptune Uranus, Saturn, Jupiter, Mercury, Mars, Venus, and then Earth Note : Note that this order varies depending on the time of year for each planet. For instance, on rare occasions Mercury may be closer to Earth than either Venus or Mars. Also note that Pluto is no longer classi…fied as a planet. (MORE)
It is Proxima Centauri, a red dwarf star that can't be seen without a telescope. A little farther away is Alpha Centauri and that's one of the brightest stars in the sky as seen from Earth. (Incidentally, the Sun is also a star. So that's really the nearest star.)
That happens when Venus passes the Earth on the inside, between theEarth and the Sun, which is inferior conjuction. It happens after6-8 weeks when Venus has been visible in the west around sunset,then there is a gap of two weeks, followed by 6-8 weeks when it canbe seen in the east around sunrise.
Venus will be closest to Earth in 2013 on December 31, when it will be 0.2821 au (4.22 x 10 7 km or 26.22 million miles) away.
Mars is the closest when it is at opposition, i.e. opposite the Sun in the sky, due south at midnight (or north as seen from the southern hemisphere). Venus comes closer but when it is closest it is between us and the Sun, at inferior conjunction. At that time, we are at opposition as seen from Ve…nus. (MORE)
No. Mars orbits between Earth and Jupiter and has the closest orbitto the giant planet.
The distances vary as the planets orbit the Sun. On average, the answer is Mercury.
Earth passes through the point in its orbit that is closest to the sun, which is known as its perihelion, during the first half of January.