Proxima Centauri
The red dwarf star Proxima Centauri, part of the Alpha Centauri star system, is the nearest star to the Sun. As the name suggests, it is located in the constellation of Centaurus.
Proxima Centauri
The closest star beyond the Sun. Proxima Centauri is a red dwarf and is far smaller, cooler, and less massive than the Sun.
Proxima Centauri
Related Category: Astronomy: Stars
see Alpha Centauri.
More on Proxima Centauri ...
Proxima Centauri - Closest Star to the Sun
An x-ray image of the red dwarf star Proxima Centauri
Click on image for star map
NASA/CXC/SAO ...
Proxima Centauri and the two components of Rigil Kent (or alpha Centauri as it is more usually known) form a triple system. Currently, Proxima Centauri is the closest member of this system to the Sun.
Proxima Centauri
Apparent motion of Proxima Centauri over 15 years.
A real-color, field image of Proxima by David Malin
is available at Astronomy Picture of the Day.
Proxima Centauri
An eleventh magnitude (M bol = 11.66 mag) star, probably associated with the Cen system. It is a flare star of spectral type dM4e with a parallax of 0'.765, which makes it our closest known stellar neighbor. M = 0.1 M ; R = 1.
Proxima Centauri
The faintest of the three stars that make up the Alpha Centauri star system. (See Alpha Centauri) [C95]
PSD ...
Proxima Centauri - 4.22 LY [YH]
Alpha Centauri A - 4.36 LY [YS]
Alpha Centauri B - 4.36 LY [YS]
Barnard's Star - 5.96 LY [YH]
HPMS - 7.50 LY
Wolf 359 - 7.78 LY [Y]
Lalande 21185 - 8.29 LY [YH]
Sirius Star System ...
Proxima Centauri and 40 Eridani C are examples of red dwarf stars.
The homeworld of Makull's species, an M-class planet, also orbited a red dwarf. (VOY: "Time and Again")
External linkEdit ...
PROXIMA CENTAURI
The closest star to us is the . Other than that, the closest star is Proxima Centauri, aka Alpha Centauri C (the dimmest star in the Alpha centauri system). Proxima Centauri is about 4.2 light-years from the Sun.
Proxima Centauri is a flare star and is therefore also known by its variable designation of V645 Centauri. See below for details.
Proxima Centauri
There are different classifications of stars according to their spectra ranging from type O, which are very hot, to M, which are so cool that molecules may form in their atmospheres.
Main article: Proxima Centauri
The much fainter red dwarf star named Proxima Centauri, or simply "Proxima", is about 12,000 to 13,000 A.U. away from Alpha Centauri AB.[15][23][28] This is equivalent to 0.21 ly or 1.
(Added 01/14/03) Proxima Centauri, the closest star to Earth other than the sun, lies 4.2 light-years away.
Photometry Of Proxima Centauri And Barnard's Star Using Hubble Space Telescope Fine Guidance Sensor 3: A Search For Periodic Variantions (July 1999)
Hartmut Frommert's page about Barnard's Star
The binary tau Oph is not easy to split.
RIGIL KENTAURUS (Alpha Centauri) with PROXIMA CENTAURI (Alpha Cen C). Among the most famed stars of the entire sky, surely rival in renown to Sirius and Polaris even though not visible to much of the world's population, is the "foot of the Centaur, ...
The Sun's nearest known stellar neighbor is a red dwarf star called Proxima Centauri, at a distance of about 4.2 light years (a light year is the distance light travels in a year, at about 300,000 km per second).
The third star, alpha Centauri C, is sometimes called Proxima Centauri because it is the closest to us of the three.
The closest star to Earth (excluding the Sun) is called Proxima Centauri. This star is a member of a triple-star system (three separate stars orbiting one another, bound together by gravity) known as the Alpha Centauri complex.
Proxima Centauri is the closest star to us outside of the solar system (remember that the Sun is a star too!).
The largest angle we can measure for a star (that for Proxima Centauri) is so puny that it isn't even the size of 1". All other stars have even smaller angles (are at greater distances).
At the bottom-right of the diagram we can see two named stars, Proxima Centauri and Barnard's Star. These are both cool (approximately 2,500 K) and dim (absolute magnitudes of about -13, only about 1/10,000 the luminosity of our Sun).
The closest star to the solar system is Proxima Centauri, which is approximately 4.3 light-years from the Sun. The most distant stars lie in galaxies billions of light-years away. Stars may occur singly, as in the case of the Sun.
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The star nearest to earth and the solar system is the triple star Proxima Centauri, which is about 40 trillion km (about 25 trillion mi) from earth.
The most notable feature in the constellation is [2040] alpha Centauri, a triple star system composed of a binary star, alpha Centauri AB, and a red dwarf, Proxima Centauri.
The next closest star to us is Proxima Centauri. This star is 4.3 light years away which means that light from it takes 4.3 years to reach us. Our galaxy is about 100,000 light years across.
The nearest star (after our Sun, of course!) is Proxima Centauri at a distance of 4.2 light years. At a speed of 17 km/sec (such as what the Voyager 1 spacecraft currently has), it would take about 75,000 years to reach Proxima Centauri.
After the sun the next nearest star is a red dwarf called Proxima Centauri which is over 250,000 times the distance away. If you were to travel out to Proxima Centauri and look back at the sun you would see it as a small faint yellow star.
Other than that, the closest star is Proxima Centauri, aka Alpha Centauri C (the dimmest star in the Alpha Centauri system). Proxima Centauri is 4.3 light-years from the Sun. It has an absolute magnitude of 15.5.
The red dwarf Proxima Centauri, the closest star to the solar system, would appear to be magnitude 15.6, the tiniest little glimmer visible in a 16-inch telescope! ...
A Chandra satellite x-ray image of the closest star to the Sun: the red dwarf, Proxima Centauri.
Credit: NASA/CXC/SAO
Study Astronomy Online at Swinburne University
All material is © Swinburne University of Technology except where indicated.
Red dwarf stars are believed to be the most common star type in the universe. Proxima Centauri, the nearest star to the Sun is a red dwarf, (Type M5, magnitude 11.0) as are twenty of the next thirty nearest.
A third, much fainter companion star is called Proxima Centauri because it is slightly closer to us than the other two. Beta Centauri is called Hadar, from an Arabic name signifying one member of a pair of stars.
Alpha Centauri is the star system that is closest to the Earth. The dimmest star in the system, Proxima Centauri (Alpha Centauri C), is the closest star to us (other than our sun).
A heavenly body that generates its own heat and light. Our nearest star after the Sun is Proxima Centauri, 4.28 light-years away. Some 5000 stars are visible to the naked eye
Sun ...
The closest star within that constellation is Proxima Centauri at 4.2 light years. That is a mere 39,735,067,984,839.36 kilometers away. Just a short trip if you were some how frozen in cryogenic stasis.
UKS 38 Proxima Centaurii, the nearest star
AAT 95 NGC 6164-5, a nebula around a hot star in Norma
AAT 27 The annulus of Shapley 1, a planetary nebula
AAT 77 Bok globules in the IC 2944/48 nebula in Centaurus ...
Our "next-door" neighbors reside in the Centaurus constellation. The closest star to our own sun is Proxima Centauri.
Rigel Kentaurus C is a cool red M5.5Ve main sequence dwarf with a Visual Magnitude of 11.1, corresponding to a luminosity of about 1/17,000 that of the sun. This star is known as Proxima Centauri.
The Nearest Star ...
The closest star to the Earth would be the Sun, at a distance of about 93 million miles (149 million kilometers). The closest star outside our solar system would be Proxima Centauri. It is located about 4 light years from Earth.
Polaris Australis Sigma Octantis
Pollux Beta Geminorum
Porrima Gamma Virginis
Praecipua 46 Leonis Minoris
Procyon Alpha Canis Minoris
Propus Eta Geminorum
Proxima Centauri Alpha Centauri C
Pulcherrima Epsilon Boötis ...
The third possible member of the system, Proxima Centauri, is a red dwarf, about 7,000 times fainter than the Sun, which, if it is truly associated with the main pair, moves in a very wide orbit with a period of millions of years.
While the closest known brown dwarf is only 12 light years away, the discovery of two new neighbours could mean that we are surrounded by these "failed stars" and that red dwarf star Proxima Centauri, at 4.
The constellation lies low in the sky and is impossible to see from most of the United States. It contains within it the closest star, other than the sun, to the solar system, Proxima Centauri.
Proxima Centauri (V645 Cen), the closest star to the Sun, has a parallax of 0.77 arc seconds, so its motion is confined to a region of 1.5 arc seconds diameter, slightly smaller than Ganymede's diameter on the sky at opposition.
The closest star to the sun Proxima Centauri is a binary star.For observing a binary star, the resolving power of a telescope needs to be high which is its ability to distinguish between two close objects having a small angular separation.
The first 334 variable stars discovered in a constellation are given a one or two letter code such as R Scuti or UV Ceti. Other variable stars are designated V335, V336, etc. For example, Proxima Centauri is known to variable star astronomers as ...
 See also: Proxima, Sun, Star, Light, Earth
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