This is a stellar map, employing an original map concept, which combines graphically the distance of all <a href="https://en.wikipedia.org/wiki/star_system" class="extiw" title="wikipedia:star system">stellar systems</a> or singular <a href="https://en.wikipedia.org/wiki/Fusor_(astronomy)" class="extiw" title="wikipedia:Fusor (astronomy)">fusors</a> (<a href="https://en.wikipedia.org/wiki/star" class="extiw" title="wikipedia:star">stars</a> and <a href="https://en.wikipedia.org/wiki/brown_dwarf" class="extiw" title="wikipedia:brown dwarf">brown dwarfs</a>) and <a href="https://en.wikipedia.org/wiki/sub-brown_dwarf" class="extiw" title="wikipedia:sub-brown dwarf">sub-brown dwarfs</a> within 12 <a href="https://en.wikipedia.org/wiki/light-year" class="extiw" title="wikipedia:light-year">light-years</a> (ly) or 3.7 <a href="https://en.wikipedia.org/wiki/Parsec" class="extiw" title="wikipedia:Parsec">parsecs</a> from Earth, along with their <a href="https://en.wikipedia.org/wiki/Apparent_place" class="extiw" title="wikipedia:Apparent place">angular location</a> as viewed from Earth. The result provides a readable and correct depiction of the distance from the center (Earth/<a href="https://en.wikipedia.org/wiki/Solar_System" class="extiw" title="wikipedia:Solar System">Sol</a>) and location in three dimensional space of the described <a href="https://en.wikipedia.org/wiki/Astronomical_object" class="extiw" title="wikipedia:Astronomical object">stellar objects</a>, allowing a correct depiction of proximity among the depicted stellar objects.
<p><b>How to read:</b>
</p><p>This map is a <a href="https://en.wikipedia.org/wiki/Plan_position_indicator" class="extiw" title="wikipedia:Plan position indicator">common radar screen</a> type of map displaying stellar objects around Sol. Each stellar object is marked jointly by two points, a <i><a href="https://en.wikipedia.org/wiki/Lozenge" class="extiw" title="wikipedia:Lozenge">diamond</a> marked point</i> and an <i>line marked point</i>, as well as an either unbroken or dotted <i>straight line</i> which connects the two points.
</p><p><br><i>Circular lines</i>:
</p><p>The <i>circular lines</i> indicate the distance from the map-center by being set apart in one light-year steps.
At the outermost <i>circular line</i> the <a href="https://en.wikipedia.org/wiki/hour_angle" class="extiw" title="wikipedia:hour angle">hours angle</a> for the <a href="https://en.wikipedia.org/wiki/right_ascension" class="extiw" title="wikipedia:right ascension">right ascension</a> is displayed clockwise.
The <i>circular lines</i> therefore represent the hour-axis and, through their repetition in one light-year steps, the distance-axis.
</p><p><br>
Stellar object <i>points</i>:
</p>
<ul><li>The <i>diamond marked points</i> display the location of the stellar objects in the third dimension according to their <a href="https://en.wikipedia.org/wiki/declination" class="extiw" title="wikipedia:declination">declination</a>.</li></ul><ul><li>The <i>line marked point</i> are at the distance of the stellar objects from the map-center in light-years (ly) and are found on the map as endpoints of the <i>straight lines</i> which radiate outward from each <i>diamond marked point</i>. Contrary to the <i>diamond marked points</i>, the <i>line marked point</i> are all on the <a href="https://en.wikipedia.org/wiki/plane_of_reference" class="extiw" title="wikipedia:plane of reference">reference plane/level</a> of the map.</li></ul><p><br><i>Straight lines</i>:
</p><p>The <i>straight lines</i> (unbroken or dotted) represent the <a href="https://en.wikipedia.org/wiki/Arc_(geometry)" class="extiw" title="wikipedia:Arc (geometry)">arcs</a> of the declination angles (see also <a href="https://en.wikipedia.org/wiki/circular_sector" class="extiw" title="wikipedia:circular sector">circular sector</a> of a <a href="https://en.wikipedia.org/wiki/unit_circle" class="extiw" title="wikipedia:unit circle">unit circle</a>) of the stellar objects on their <a href="https://en.wikipedia.org/wiki/hour_circle" class="extiw" title="wikipedia:hour circle">hour circle</a> toward the <a href="https://en.wikipedia.org/wiki/celestial_pole" class="extiw" title="wikipedia:celestial pole">celestial poles</a> (with the poles being congruent with the center of the map). Since the map is viewed top-down from the <a href="https://en.wikipedia.org/wiki/Southern_celestial_hemisphere" class="extiw" title="wikipedia:Southern celestial hemisphere">south</a>, allowing a clockwise eastward-reading (opposed to when using <a href="https://en.wikipedia.org/wiki/hour_angle#sidereal_hour_angle" class="extiw" title="wikipedia:hour angle">sidereal hour angles</a>), the dotted <i>straight lines</i> are arcs with positive declination, down from the reference plane/level, toward the star <a href="https://en.wikipedia.org/wiki/Polaris" class="extiw" title="wikipedia:Polaris">Polaris</a>, the northern celestial pole (which would be allmost congruent with the center of the map, if it would display stars further than 12 ly). That said the <i>straight lines</i> also represent a top-down view of the <a href="https://en.wikipedia.org/wiki/hypotenuse" class="extiw" title="wikipedia:hypotenuse">hypotenuse</a> between the <i>points</i> of a <a href="https://en.wikipedia.org/wiki/right-angled_triangle" class="extiw" title="wikipedia:right-angled triangle">right-angled triangle</a> with its right-angle on the plane/level; but the <i>straight lines</i>, when viewed <a href="https://en.wikipedia.org/wiki/True_length" class="extiw" title="wikipedia:True length">true to length</a>, represent the base x-line of the described triangle.
</p><p><br>
Calculation of the length of the displayed <i>straight lines</i> is:
</p><p><i>x = "distance of the stellar objects to the map-center in ly" - ("distance of the stellar objects to the map-center in ly" * sin(180°-90°-"declination"))</i>
</p>
<div class="thumb tright"><div class="thumbinner" style="width:222px;"><a href="//commons.wikimedia.org/wiki/File:Stars_within_12ly_angular_3D.gif" class="image"><img src="https://upload.wikimedia.org/wikipedia/commons/thumb/3/3b/Stars_within_12ly_angular_3D.gif/220px-Stars_within_12ly_angular_3D.gif" decoding="async" width="220" height="163" class="thumbimage" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/3/3b/Stars_within_12ly_angular_3D.gif/330px-Stars_within_12ly_angular_3D.gif 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/3/3b/Stars_within_12ly_angular_3D.gif/440px-Stars_within_12ly_angular_3D.gif 2x" data-file-width="753" data-file-height="559"></a>  <div class="thumbcaption"><div class="magnify"><a href="//commons.wikimedia.org/wiki/File:Stars_within_12ly_angular_3D.gif" class="internal" title="Enlarge"></a></div>A view of the map as it appears when the viewing angle is changed, resulting in a 3D animation of the map, illustrating the logic of the map.</div></div></div>
<p>Note: <a href="https://en.wikipedia.org/wiki/Proxima_Centauri" class="extiw" title="wikipedia:Proxima Centauri">Proxima Centauri</a> is the only marked stellar object not labled and not being an independent stellar object or the <a href="https://en.wikipedia.org/wiki/primary_(astronomy)" class="extiw" title="wikipedia:primary (astronomy)">primary body</a> of a stellar system (which in its case is <a href="https://en.wikipedia.org/wiki/Alpha_Centauri" class="extiw" title="wikipedia:Alpha Centauri">Alpha Centauri</a>), but still being noteworthy since it is the closest fusor to Sol.
</p><p><br></p><p><a href="https://en.wikipedia.org/wiki/Epoch#Julian_dates_and_J2000" class="extiw" title="wikipedia:Epoch">Epoch J2000.0</a>, see <a href="https://en.wikipedia.org/wiki/List_of_nearest_stars_and_brown_dwarfs" class="extiw" title="wikipedia:List of nearest stars and brown dwarfs">List of nearest stars and brown dwarfs</a>.
</p>
Produced with Microsoft Excel (<a href="https://en.wikipedia.org/wiki/radar_chart" class="extiw" title="wikipedia:radar chart">radar chart</a>)
<a href="//commons.wikimedia.org/wiki/User:Nsae_Comp" title="User:Nsae Comp">Nsae Comp</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>