Changes

| image          =Leo constellation map.JPG

| image          =Leo constellation map.JPG

| designation    =Wolf 359<br/>CN Leonis

| designation    =Wolf 359<br/>CN Leonis

| rightascension  =10^h 56^m 28.99^s  

| rightascension  =10^h 56^m 28.865^s<ref name=simbad>[http://simbad.u-strasbg.fr/simbad/sim-id?Ident=Wolf+359&NbIdent=1&Radius=2&Radius.unit=arcmin&submit=submit+id Wolf 359] from the [http://simbad.u-strasbg.fr/simbad SIMBAD Astronomical Database]</ref>

| declination    =+07^o 00′ 52.0″

| declination    =+07° 00′ 52.77″<ref name=simbad/>

| distance        =7.78 ly

| distance        =7.78 ly<ref name=solstation>[http://www.solstation.com/stars/wolf359.htm Wolf 359] from solstation.com</ref>

| constellation  =Leo

| constellation  =Leo

| type            =Star

| type            =Star

| dimensions      =

| dimensions      =

| magnitude      =Apparent Mag: 13.54<br/>Absolute Mag: 16.64

| magnitude      =Apparent Mag: 13.54<ref>Landolt, A. (1992). UBVRI photometric standard stars in the magnitude range 11.5-16.0 around the celestial equator. ''The Astronomical Journal'', 104, p.340. [https://ui.adsabs.harvard.edu/#abs/1992AJ....104..340L Astrophysics Data System]</ref><br/>Absolute Mag: 16.64<ref>From definition of absolute magnitude, using apparent magnitude (+13.54) and distance (7.78 ly) given here.</ref>

| redshift        =

| redshift        =

| radvelocity    =19±1 km/s

| radvelocity    =19±1 km/s<ref name=simbad/>

| propmotion      =RA: -3842 mas/yr<br/>Dec.: -2725 mas/yr

| propmotion      =RA: -3842 mas/yr<ref name=simbad/><br/>Dec.: -2725 mas/yr<ref name=simbad/>

| parallax        =419.10 ± 2.10 mas

| parallax        =419.1 ± 2.10 mas<ref name=simbad/>

}}

}}

'''Wolf 359''' is the fourth closest star at only 7.7 light years; only [[Proxima Centauri]], [[Alpha Centauri]] and [[Barnard's Star]] are closer. The star can be found in the constellation of [[Leo]]. One of the faintest known stars, it cannot be seen by the unaided eye and has a visual magnitude of only 13.54.

'''Wolf 359''' is the fourth closest star at only 7.7 light years; only [[Proxima Centauri]], [[Alpha Centauri]] and [[Barnard's Star]] are closer. The star can be found in the [[constellation]] of [[Leo]]. One of the faintest known stars, it cannot be seen by the unaided eye and has a visual magnitude of only 13.54.

Discovered in 1918 by German astronomer Max Wolf, whom the star is named after, Wolf 359 is a dim [[red dwarf]] with a [[Star#Spectral Type|spectral class]] of M5.8Ve. The star's mass is between 9 and 13 percent of Sol's, and has a diameter of approximately 16 to 19 of Sol's. The luminosity is a mere .002% of our own star, so dim if Wolf 359 replaced our sun, it would appear only 10 times brighter then the moon from our world. Like many [[red dwarf]]s, Wolf 359 is a [[flare star]], and can violently flare and brighten on occasion. However these flares are not as intense and are less frequent then on well known flare stars such as [[Luyten 726-8|UV Ceti]] or [[Proxima Centauri]].<ref>http://adsabs.harvard.edu/abs/1983Ap%26SS..95..235G</ref><ref>http://www.solstation.com/stars/wolf359.htm</ref>

Discovered in 1918 by German astronomer Max Wolf, whom the star is named after, Wolf 359 is a dim [[red dwarf]] with a [[Star#Spectral Type|spectral class]] of M5.8Ve. The star's mass is between 9 and 13 percent of Sol's, and has a diameter of approximately 16 to 19 of Sol's. The luminosity is a mere 0.002% of our own star, so dim if Wolf 359 replaced our sun, it would appear only 10 times brighter then the moon from our world. Like many [[red dwarf]]s, Wolf 359 is a [[flare star]], and can violently [[solar flare|flare]] and brighten on occasion. However these flares are not as intense and are less frequent then on well known flare stars such as [[Luyten 726-8|UV Ceti]] or [[Proxima Centauri]].<ref>Gershberg, R. and Shakhovskaya, N. (1983). Characteristics of activity energetics of the UV cet-type flare stars. ''Astrophysics and Space Science'', 95(2), pp.235-253. [https://ui.adsabs.harvard.edu/#abs/1983Ap%26SS..95..235G Astrophysics Data System]</ref><ref name=solstation/>

At present there are no known companion bodies orbiting Wolf 359.<ref>http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=2000AJ....119..906S&db_key=AST&high=38e0b7728707947</ref> For an Earthlike world to have liquid water on its surface (within the [[habitable zone]]), it would have to be only .0042 AU from its parent star. Such a world would be tidally locked to Wolf 359, and be repeatedly exposed to intense radiation from the occasional flares.

At present there are no known companion bodies orbiting Wolf 359.<ref>Schroeder, D. et al. (2000). A Search for Faint Companions to Nearby Stars Using the Wide Field Planetary Camera 2. The Astronomical Journal, 119(2), pp.906-922. [https://ui.adsabs.harvard.edu/#abs/2000AJ....119..906S Astrophysics Data System]</ref> For an Earth-like world to have liquid water on its surface (within the [[habitable zone]]), it would have to be only 0.0042 AU from its parent star. Such a world would be tidally locked to Wolf 359, and be repeatedly exposed to intense radiation from the occasional flares.

==References==

==References==

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[[Category:Astronomy]]

[[Category:Astronomy]]