Description Nearby Stars (14ly Radius).svg	English: A spatial representation of every star within 14 light-years of Sol . There are 32 known stars in this region, including Sol. The stars are coloured according to the spectral type, which may not reflect the actual colour. Please see this Wikipedia article for the listing of stars. If a star is double or triple the stars are shown stacked vertically: the actual position is the star closest to the centre plane. The stars on this map may not all be visible to the naked eye, as many are dwarf stars. Some of this information may be preliminary and not entirely accurate as a result. The coordinate system is right ascension and declination . Hours of RA are marked, as well as distance in multiples of 5 light-years.
Date	6 April 2008
Source	self-made, Mathematica, Inkscape. See also: http://www.daviddarling.info/encyclopedia/S/starsnearest.html
Author	Inductiveload
Permission ( Reusing this file )	Public domain Public domain false false I, the copyright holder of this work, release this work into the public domain . This applies worldwide. In some countries this may not be legally possible; if so: I grant anyone the right to use this work for any purpose , without any conditions, unless such conditions are required by law.
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SVG development InfoField	The source code of this SVG is invalid due to 6 errors. This W3C- invalid diagram was created with Inkscape , or with something else . This diagram uses embedded text that can be easily translated using a text editor. Quality image This image has been assessed using the Quality image guidelines and is considered a Quality image . العربية ∙ جازايرية ∙ беларуская ∙ беларуская (тарашкевіца) ∙ български ∙ বাংলা ∙ català ∙ čeština ∙ Cymraeg ∙ Deutsch ∙ Schweizer Hochdeutsch ∙ Zazaki ∙ Ελληνικά ∙ English ∙ Esperanto ∙ español ∙ eesti ∙ euskara ∙ فارسی ∙ suomi ∙ français ∙ galego ∙ עברית ∙ हिन्दी ∙ hrvatski ∙ magyar ∙ հայերեն ∙ Bahasa Indonesia ∙ italiano ∙ 日本語 ∙ Jawa ∙ ქართული ∙ 한국어 ∙ kurdî ∙ Lëtzebuergesch ∙ lietuvių ∙ македонски ∙ മലയാളം ∙ मराठी ∙ Bahasa Melayu ∙ Nederlands ∙ Norfuk / Pitkern ∙ polski ∙ português ∙ português do Brasil ∙ rumantsch ∙ română ∙ русский ∙ sicilianu ∙ slovenčina ∙ slovenščina ∙ shqip ∙ српски / srpski ∙ svenska ∙ தமிழ் ∙ తెలుగు ∙ ไทย ∙ Tagalog ∙ Türkçe ∙ toki pona ∙ українська ∙ vèneto ∙ Tiếng Việt ∙ 中文 ∙ 中文（简体） ∙ 中文（繁體） ∙ +/−

Mathematica Code

raToTheta[{h_, m_, s_}] := 15*h + 15/60*m + 15/3600*s;
decToPhi[{d_, m_, s_}] := 90 - (d + (m/60 + s/3600)*Sign[d]);

(*Returns celestial RA and Dec as radians in spherical coords*)
celestialToSph[{{rah_, ram_, ras_}, {dd_, dm_, ds_}, dist_, name_}] :=
  {
   raToTheta[{rah, ram, ras}] Degree,
   decToPhi[{dd, dm, ds}] Degree,
   dist
   };

(*Map Spherical coords to Cartesian*)
sphereMap[{phi_, theta_, r_}] :=
  {
   r*Sin[theta] Cos[phi],
   r*Sin[theta] Sin[phi],
   r*Cos[theta]};

(*Produce a circle of radius r offset in the z axis by z*)
offsetCircle[r_, z_] := ParametricPlot3D[
   {r*Cos[t],
    r*Sin[t],
    z},
   {t, 0, 2 Pi}];

(*Star list as {RA},{Dec},Distance,Name}*)
starList =
  {
   {{0, 0, 0}, {0, 0, 0}, 0, "Sun"},
   {{14, 29, 43}, {-62, 40, 46}, 4.2421, "Proxima Centauri"},
   {{14, 39, 36.5}, {-60, 50, 02}, 4.3650, "\[Alpha] Centauri"},
   {{17, 39, 35.1}, {4, 41, 36}, 5.9630, "Barnard's Star"},
   {{10, 49, 18.7}, {-53, 19, 10}, 6.5880, "Luhman 16"},
   {{10, 56, 29.2}, {7, 0, 53}, 7.7825, "Wolf 359"},
   {{11, 3, 20.2}, {35, 58, 12}, 8.2905, "Lalande 21185"},
   {{6, 45, 8.8}, {-16, 42, 58}, 8.5828, "Sirius"},
   {{1, 39, 1.3}, {-17, 57, 01}, 8.7280, "Luyten 726-8"},
   {{15, 41, 51.5}, {-22, 50, 25}, 9.3000, "Wise 1541-2250"},
   {{18, 49, 49.4}, {-23, 50, 10}, 9.6183, "Ross 154"},
   {{23, 41, 54.7}, {44, 10, 30}, 10.322, "Ross 248"},
   {{3, 32, 55.8}, {-9, 27, 30}, 10.522, "\[Epsilon] Eridani"},
   {{23, 5, 52}, {-35, 51, 11}, 10.742, "Lacaille 9352"},
   {{11, 47, 44.4}, {0, 48, 16}, 10.919, "Ross 128"},
   {{22, 38, 33.4}, {-15, 18, 7}, 11.266, "EZ Aquarii"},
   {{07, 39, 18.1}, {5, 13, 30}, 11.402, "Procyon"},
   {{21, 06, 53.9}, {38, 44, 58}, 11.403, "61 Cygni"},
   {{18, 42, 46.7}, {59, 37, 49}, 11.525, "Struve 2398"},
   {{1, 18, 22.9}, {44, 1, 23}, 11.624, "Groombridge 34"},
   {{22, 3, 21.7}, {-56, 47, 10}, 11.824, "\[Epsilon] Indi"},
   {{8, 29, 49.5}, {26, 46, 37}, 11.826, "DX Cancri"},
   {{1, 44, 4.1}, {-15, 56, 15}, 11.887, "\[Tau] Ceti"},
   {{3, 35, 59.7}, {-44, 30, 45}, 11.991, "GJ 1061"},
   {{1, 12, 30.6}, {-16, 59, 56}, 12.132, "YZ Ceti"},
   {{07, 27, 24.5}, {5, 13, 33}, 12.366, "Luyten's Star"},
   {{2, 53, 0.9}, {16, 52, 53}, 12.571, "Teegarden's Star"},
   {{18, 45, 5.3}, {-63, 57, 48}, 12.571, "SCR 1845-6357"},
   {{5, 11, 40.6}, {-45, 1, 6}, 12.777, "Kapteyn's Star"},
   {{21, 17, 15.3}, {-38, 52, 03}, 12.870, "Lacaille 8760"},
   {{22, 27, 59.5}, {57, 41, 45}, 13.149, "Kruger 60"},
   {{10, 48, 14.7}, {-39, 56, 06}, 13.167, "DEN 1048-3956"},
   {{6, 29, 23.4}, {-2, 48, 50}, 13.349, "Ross 614"}
     };

(*Get stars in {phi, theta, r} format*)
starsDeg = Map[celestialToSph, starList, 1];
(*Map into the Cartesian space*)
starPlot = sphereMap /@ starsDeg;
stars = ListPointPlot3D[starPlot];
labels = Table[
   Graphics3D[
    Text[
     starList[[i, 4]],
     starPlot[[i]],
     {-1.1, 0}
     ]],
   {i, 1, Length[starList]}];
posLines = Table[
   Graphics3D[{Orange,
     Line[
      {{0, 0, 0},
       {starPlot[[i, 1]], starPlot[[i, 2]], 0},
       starPlot[[i]]}
      ]}],
   {i, 2, Length[starList]}];
gridhours = Graphics3D[
   {Line[{{-20, 0, 0}, {20, 0, 0}}],
    Line[{{0, -20, 0}, {0, 20, 0}}]}];
gridly = {offsetCircle[5, 0],
   offsetCircle[10, 0],
   offsetCircle[15, 0]};
viewDist = 20000; (*Distance of Viewpoint*)
viewRA = 225 Degree; (*RA of viewpoint*)
viewDec = 20 Degree;(*Dec of viewpoint*)
Show[
 labels,
 posLines,
 stars,
 gridhours,
 gridly,
 
 BaseStyle -> {FontFamily -> "DejaVu Sans"},
 PlotRange -> {{-15, 15}, {-15, 15}, {-12, 12}}
{{QualityImage}},
 SphericalRegion -> True,
 Axes -> False,
 BoxRatios -> {1, 1, 1},
 Boxed -> False,
(*ViewPoint -> {Sin[viewRA]*viewDist, Cos[viewRA]*viewDist, 
   Sin[viewDec]*viewDist},*)
 (*ViewVertical -> {0, 0, 1},*)
 AxesLabel -> {"x", "y", "z"},
 ImageSize -> 1000]