Micron Document
<!DOCTYPE html>
<html class="client-nojs vector-feature-language-in-header-enabled vector-feature-language-in-main-page-header-disabled vector-feature-page-tools-pinned-disabled vector-feature-toc-pinned-clientpref-0 vector-toc-not-available vector-feature-main-menu-pinned-disabled vector-feature-limited-width-clientpref-1 vector-feature-limited-width-content-enabled vector-feature-custom-font-size-clientpref-1 vector-feature-appearance-pinned-clientpref-0 skin-theme-clientpref-day vector-sticky-header-enabled" lang="de" dir="ltr"><head>
<meta charset="UTF-8">
<title>Acamar</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="icon" type="image/png" href="./_res_/favicon.png">
<link rel="canonical" href="https://de.wikipedia.org/wiki/Acamar"> <link href="./_mw_/ext.cite.styles.css" rel="stylesheet" type="text/css">
<link href="./_mw_/ext.wikimediamessages.styles.css" rel="stylesheet" type="text/css">
<link href="./_mw_/skins.vector.icons.css" rel="stylesheet" type="text/css">
<link href="./_mw_/skins.vector.search.codex.styles.css" rel="stylesheet" type="text/css">
<link href="./_mw_/skins.vector.styles.css" rel="stylesheet" type="text/css">
<meta name="ResourceLoaderDynamicStyles" content="">
<link href="./_mw_/ext.gadget.citeRef.css" rel="stylesheet" type="text/css">
<link href="./_mw_/ext.gadget.defaultPlainlinks.css" rel="stylesheet" type="text/css">
<link href="./_mw_/ext.gadget.dewikiCommonHide.css" rel="stylesheet" type="text/css">
<link href="./_mw_/ext.gadget.dewikiCommonLayout.css" rel="stylesheet" type="text/css">
<link href="./_mw_/ext.gadget.dewikiCommonStyle.css" rel="stylesheet" type="text/css">
<link href="./_mw_/ext.gadget.dewikiDarkmode.css" rel="stylesheet" type="text/css">
<link href="./_mw_/ext.gadget.dewikiResponsive.css" rel="stylesheet" type="text/css">
<link href="./_mw_/ext.gadget.specialSearch.css" rel="stylesheet" type="text/css">
<link rel="stylesheet" type="text/css" href="./_mw_/site.styles.css">
<link rel="stylesheet" type="text/css" href="./_mw_/noscript.css">
<link rel="stylesheet" type="text/css" href="./_res_/footer.css">
<link rel="stylesheet" type="text/css" href="./_res_/vector-2022.css">
</head>
<body class="skin--responsive skin-vector skin-vector-search-vue mediawiki ltr sitedir-ltr mw-hide-empty-elt ns-0 ns-subject page-Acamar rootpage-Acamar skin-vector-2022 action-view">
<div class="mw-page-container">
<div class="mw-page-container-inner">
<div class="mw-content-container">
<main id="content" class="mw-body">
<header class="mw-body-header vector-page-titlebar">
<h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Acamar</span></h1>
</header>
<a id="top"></a>
<div id="bodyContent" class="vector-body ve-init-mw-desktopArticleTarget-targetContainer" aria-labelledby="firstHeading" data-mw-ve-target-container="">
<div id="contentSub">
<div id="mw-content-subtitle"></div>
</div>
<div id="mw-content-text" class="mw-body-content mw-content-ltr" lang="de" dir="ltr"><div class="mw-content-ltr mw-parser-output" lang="de" dir="ltr"><style data-mw-deduplicate="TemplateStyles:r249591184">
/* start https://de.wikipedia.org/ */


.mw-parser-output .ibtable{width:33%;font-size:90%;min-width:250px;max-width:400px;line-height:130%;margin:0em 0em 1em 1em;background-color:#ffffff}.mw-parser-output .ibheader{font-size:110%;line-height:140%;font-weight:bold;text-align:center;background:#DCDCDC;color:#202122}.mw-parser-output .ibheadercomp{font-size:100%;line-height:140%;font-weight:bold;text-align:left;background:#DCDCDC;color:#202122}.mw-parser-output .ibimage{background-color:#000000;color:#ffffff;text-align:center;border-bottom-color:#ffffff}.mw-parser-output .ibimgtxt{background-color:#ffffff;color:#000000;border-top-width:0;text-align:center}.mw-parser-output .ibmap{background-color:#ffffff;color:#000000;text-align:center;border-bottom-width:0}.mw-parser-output .ibmaptxt{background-color:#ffffff;color:#000000;text-align:center;border-top-width:0}.mw-parser-output .ibleft{background-color:#eeeeee;color:#000000;min-width:10em;line-height:140%}.mw-parser-output .ibnowrap{white-space:nowrap}.mw-parser-output .ibsource{font-size:85%;line-height:150%}


/* end https://de.wikipedia.org/ */
</style><div id="coordinates" class="coordinates"><a class="external text" href="https://geohack.toolforge.org/skyhack.php?ra=2.9710208333333&amp;de=-40.304681111111&amp;size=0.033333333333333&amp;name=Acamar+%2F+%CE%B8+Eridani&amp;object=IDS%2002545-4042&amp;_globe:=">Datenbanklinks zu Acamar / θ Eridani</a></div>
<table aria-label="Kenndaten des Doppelsterns" class="wikitable infobox float-right ibtable">

<tbody><tr>
<th colspan="3" class="ibheader">Doppelstern<br>Acamar / θ Eridani
</th></tr>
<tr style="display:none;">
<td colspan="3" class="ibimage notheme">
</td></tr>
<tr style="display:none;">
<td colspan="3" class="ibimgtxt notheme">
</td></tr>
<tr>
<td colspan="3" class="ibmap notheme"><div style="position:relative;"><table style="border:0; width:330px; text-align:left; display:inline-table;"><tbody><tr><td style="border:0; padding:0;"><div style="position: relative;"><div style="position: absolute; display: block; padding:0px; margin:0px; left:232.12192262603px; top:270.80890973036px;"><span typeof="mw:File"></span></div><span typeof="mw:File"></span></div></td></tr></tbody></table><span style="display:none;">Vorlage:Skymap/Wartung/Eri</span></div>
</td></tr>
<tr style="display:none;">
<td colspan="3" class="ibmap notheme"><div class="notheme" style="position: relative; width: 330px; margin: auto; float: ; clear: ; background:#ffffff;"><div style="position: absolute; left: 188px; top: 192px; padding: 0;"><span class="mw-valign-top" typeof="mw:File"></span></div><span typeof="mw:File"></span></div>
</td></tr>
<tr style="display:none;">
<td colspan="3" class="ibmaptxt notheme">
</td></tr>
<tr>
<th colspan="3" class="ibheader">Beobachtungsdaten<br><small><a href="%C3%84quinoktium" title="Äquinoktium">Äquinoktium</a>:&nbsp;<a href="Epoche_(Astronomie)#Standardepochen" title="Epoche (Astronomie)">J2000.0</a>, <a href="Epoche_(Astronomie)" title="Epoche (Astronomie)">Epoche</a>:&nbsp;J2000.0</small>
</th></tr>
<tr>
<td colspan="3" style="text-align:center;"><a rel="nofollow" class="external text" href="https://aladin.cds.unistra.fr/AladinLite/?target=02%2058%2015.675%20%2D40%2018%2016.852&amp;fov=0.033333333333333&amp;survey=CDS%2FP%2FDSS2%2Fcolor">AladinLite</a>
</td></tr>
<tr>
<td><a href="Sternbild" title="Sternbild">Sternbild</a>
</td>
<td colspan="2" class="ibnowrap"><a href="Eridanus_(Sternbild)" title="Eridanus (Sternbild)">Eridanus</a>
</td></tr>
<tr>
<td><a href="Rektaszension" title="Rektaszension">Rektaszension</a>
</td>
<td colspan="2" class="ibnowrap">02h&nbsp;58m&nbsp;15,675s<sup id="cite_ref-SIMBAD_1-0" class="reference"><a href="#cite_note-SIMBAD-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td><a href="Deklination_(Astronomie)" title="Deklination (Astronomie)">Deklination</a>
</td>
<td colspan="2" class="ibnowrap">−40°&nbsp;18′&nbsp;16,852″<sup id="cite_ref-SIMBAD_1-0" class="reference"><a href="#cite_note-SIMBAD-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td><a href="Scheinbare_Helligkeit" title="Scheinbare Helligkeit">Scheinbare&nbsp;Helligkeit</a>&nbsp;<sup id="cite_ref-SIMBAD_1-1" class="reference"><a href="#cite_note-SIMBAD-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>
</td>
<td colspan="2" class="ibnowrap">2,90&nbsp;mag
</td></tr>
<tr style="display:none;">
<td>Bekannte <a href="Exoplanet" title="Exoplanet">Exoplaneten</a>
</td>
<td colspan="2">
<p>{{{Planeten}}}
</p>
</td></tr>
<tr style="display:none;">
<td colspan="3" class="ibheader">Position des Begleiters
</td></tr>
<tr style="display:none;">
<td>Winkelabstand
</td>
<td colspan="2" class="ibnowrap">{{{Winkelabstand}}}
</td></tr>
<tr style="display:none;">
<td><a href="Positionswinkel" title="Positionswinkel">Positionswinkel</a>
</td>
<td colspan="2" class="ibnowrap">{{{Positionswinkel}}}
</td></tr>
<tr>
<th colspan="3" class="ibheader"><a href="Astrometrie" title="Astrometrie">Astrometrie</a>
</th></tr>
<tr>
<td><a href="Radialgeschwindigkeit" title="Radialgeschwindigkeit">Radialgeschwindigkeit</a>
</td>
<td colspan="2" class="ibnowrap">(11,9 ± 2,6) km/s<sup id="cite_ref-SIMBAD_1-2" class="reference"><a href="#cite_note-SIMBAD-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td><a href="Parallaxe" title="Parallaxe">Parallaxe</a>
</td>
<td colspan="2" class="ibnowrap">(19,9047 ± 0,2062) <a href="Winkelsekunde" title="Winkelsekunde">mas</a><sup id="cite_ref-Gaia-DR3_2-0" class="reference"><a href="#cite_note-Gaia-DR3-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td>Entfernung&nbsp;
</td>
<td colspan="2" class="ibnowrap">(164 ± 2) <a href="Lichtjahr" title="Lichtjahr">Lj</a><br><small>((50,2 ± 0,5) <a href="Parsec" title="Parsec">pc</a>)</small>
</td></tr>
<tr style="display:none;">
<td><a href="Absolute_Helligkeit" title="Absolute Helligkeit">Absolute visuelle Helligkeit</a> M<sub>vis</sub>
</td>
<td colspan="2" class="ibnowrap">mag
</td></tr>
<tr style="display:none;">
<td><a href="Absolute_Helligkeit" title="Absolute Helligkeit">Absolute bolometrische Helligkeit</a> M<sub>bol</sub>
</td>
<td colspan="2" class="ibnowrap">mag
</td></tr>
<tr style="display:none;">
<td colspan="3" style="color:#ff0000;text-align:center;"><b>Veralteter Parameter "Absolut"&nbsp;!</b>
</td></tr>
<tr>
<th colspan="3" class="ibheader"><a href="Eigenbewegung_(Astronomie)" title="Eigenbewegung (Astronomie)">Eigenbewegung</a><sup id="cite_ref-Gaia-DR3_2-1" class="reference"><a href="#cite_note-Gaia-DR3-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup>
</th></tr>
<tr>
<td>Rektaszensionsanteil:
</td>
<td colspan="2" class="ibnowrap">(–52,273 ± 0,176) <a href="Winkelsekunde" title="Winkelsekunde">mas</a>/<a href="Jahr" title="Jahr">a</a>
</td></tr>
<tr>
<td>Deklinationsanteil:
</td>
<td colspan="2" class="ibnowrap">(+23.058 ± 0.213) <a href="Winkelsekunde" title="Winkelsekunde">mas</a>/<a href="Jahr" title="Jahr">a</a>
</td></tr>
<tr style="display:none;">
<th colspan="3" class="ibheader">Orbit
</th></tr>
<tr style="display:none;">
<td><a href="Umlaufzeit" title="Umlaufzeit">Periode</a>
</td>
<td colspan="2" class="ibnowrap">
</td></tr>
<tr style="display:none;">
<td><a href="Halbachsen_der_Ellipse" title="Halbachsen der Ellipse">Große Halbachse</a>
</td>
<td colspan="2" class="ibnowrap">
</td></tr>
<tr style="display:none;">
<td><a href="Exzentrizit%C3%A4t_(Astronomie)" title="Exzentrizität (Astronomie)">Exzentrizität</a>
</td>
<td colspan="2" class="ibnowrap">
</td></tr>
<tr style="display:none;">
<td><a href="Apsis_(Astronomie)" title="Apsis (Astronomie)">Periastron</a>
</td>
<td colspan="2" class="ibnowrap">
</td></tr>
<tr style="display:none;">
<td><a href="Apsis_(Astronomie)" title="Apsis (Astronomie)">Apastron</a>
</td>
<td colspan="2" class="ibnowrap">
</td></tr>
<tr style="display:none;">
<td><a href="Bahnneigung" title="Bahnneigung">Bahnneigung</a>
</td>
<td colspan="2" class="ibnowrap">
</td></tr>
<tr style="display:none;">
<td><a href="Argument_des_Knotens" class="mw-redirect" title="Argument des Knotens">Argument des Knotens</a>
</td>
<td colspan="2" class="ibnowrap">
</td></tr>
<tr style="display:none;">
<td>Epoche des Periastrons
</td>
<td colspan="2" class="ibnowrap">
</td></tr>
<tr style="display:none;">
<td>Argument der Periapsis
</td>
<td colspan="2" class="ibnowrap">
</td></tr>
<tr>
<th colspan="3" class="ibheader">Einzeldaten
</th></tr>
<tr>
<td>Namen
</td>
<td colspan="2" style="white-space:nowrap;">A / θ<sup>1</sup>; B / θ<sup>2</sup>
</td></tr>

<tr>
<td colspan="3" class="ibheadercomp">Beobachtungsdaten
</td></tr>
<tr>
<td rowspan="2" style="vertical-align:middle"><a href="Rektaszension" title="Rektaszension">Rektaszension</a><sup id="cite_ref-SIMBAD_1-0" class="reference"><a href="#cite_note-SIMBAD-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>
</td>
<td>A / θ<sup>1</sup>
</td>
<td style="white-space:nowrap;"><span style="display:none;">25815.676</span><span style="white-space:nowrap;">02<sup>h</sup> 58<sup>m</sup> 15.676<sup>s</sup></span>
</td></tr>
<tr>
<td>B / θ<sup>2</sup>
</td>
<td style="white-space:nowrap;"><span style="display:none;">25816.404</span><span style="white-space:nowrap;">02<sup>h</sup> 58<sup>m</sup> 16.404<sup>s</sup></span>
</td></tr>
<tr>
<td rowspan="2" style="vertical-align:middle"><a href="Deklination_(Astronomie)" title="Deklination (Astronomie)">Deklination</a><sup id="cite_ref-SIMBAD_1-0" class="reference"><a href="#cite_note-SIMBAD-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>
</td>
<td>A / θ<sup>1</sup>
</td>
<td style="white-space:nowrap;"><span style="display:none;">1598183.161</span><span style="white-space:nowrap">−40° 18′ 16.839″</span>
</td></tr>
<tr>
<td>B / θ<sup>2</sup>
</td>
<td style="white-space:nowrap;"><span style="display:none;">1598183.094</span><span style="white-space:nowrap">−40° 18′ 16.906″</span>
</td></tr>
<tr>
<td rowspan="2" style="vertical-align:middle"><a href="Scheinbare_Helligkeit" title="Scheinbare Helligkeit">Scheinbare Helligkeit</a> <sup id="cite_ref-SIMBAD_1-1" class="reference"><a href="#cite_note-SIMBAD-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>
</td>
<td>A / θ<sup>1</sup>
</td>
<td style="white-space:nowrap;">3,18 ± 0,01 mag
</td></tr>
<tr>
<td>B / θ<sup>2</sup>
</td>
<td style="white-space:nowrap;">4,11 ± 0,01 mag
</td></tr>

<tr>
<td colspan="3" class="ibheadercomp">Spektrum und Indices
</td></tr>
<tr>
<td rowspan="2" style="vertical-align:middle"><a href="Spektralklasse" title="Spektralklasse">Spektralklasse</a><sup id="cite_ref-SIMBAD_1-3" class="reference"><a href="#cite_note-SIMBAD-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>
</td>
<td>A / θ<sup>1</sup>
</td>
<td style="white-space:nowrap;">A3 IV-V
</td></tr>
<tr>
<td>B / θ<sup>2</sup>
</td>
<td style="white-space:nowrap;">A1 V
</td></tr>
<tr>
<td rowspan="2" style="vertical-align:middle">B−V-<a href="Farbindex" title="Farbindex">Farbindex</a><sup id="cite_ref-SIMBAD_1-4" class="reference"><a href="#cite_note-SIMBAD-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>
</td>
<td>A / θ<sup>1</sup>
</td>
<td style="white-space:nowrap;">(0.15)
</td></tr>
<tr>
<td>B / θ<sup>2</sup>
</td>
<td style="white-space:nowrap;">(0.09)
</td></tr>



<tr>
<td colspan="3" class="ibheadercomp">Physikalische Eigenschaften
</td></tr>








<tr>
<td rowspan="2" style="vertical-align:middle"><a href="Masse_(Physik)" title="Masse (Physik)">Masse</a><sup id="cite_ref-Kaler_3-0" class="reference"><a href="#cite_note-Kaler-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup>
</td>
<td>A / θ<sup>1</sup>
</td>
<td style="white-space:nowrap;">(2.6) <a href="Sonnenmasse" title="Sonnenmasse"><i>M</i><sub>☉</sub></a>
</td></tr>
<tr>
<td>B / θ<sup>2</sup>
</td>
<td style="white-space:nowrap;">(2.4) <a href="Sonnenmasse" title="Sonnenmasse"><i>M</i><sub>☉</sub></a>
</td></tr>


<tr>
<td rowspan="2" style="vertical-align:middle"><a href="Leuchtkraft" title="Leuchtkraft">Leuchtkraft</a><sup id="cite_ref-Kaler_3-1" class="reference"><a href="#cite_note-Kaler-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup>
</td>
<td>A / θ<sup>1</sup>
</td>
<td style="white-space:nowrap;">(96) <a href="Leuchtkraft" title="Leuchtkraft"><i>L</i><sub>☉</sub></a>
</td></tr>
<tr>
<td>B / θ<sup>2</sup>
</td>
<td style="white-space:nowrap;">(36) <a href="Leuchtkraft" title="Leuchtkraft"><i>L</i><sub>☉</sub></a>
</td></tr>
<tr>
<td rowspan="2" style="vertical-align:middle"><a href="Effektive_Temperatur" title="Effektive Temperatur">Effektive Temperatur</a><sup id="cite_ref-Kaler_3-2" class="reference"><a href="#cite_note-Kaler-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup>
</td>
<td>A / θ<sup>1</sup>
</td>
<td style="white-space:nowrap;">(8200) <a href="Kelvin" title="Kelvin">K</a>
</td></tr>
<tr>
<td>B / θ<sup>2</sup>
</td>
<td style="white-space:nowrap;">(9200) <a href="Kelvin" title="Kelvin">K</a>
</td></tr>








<tr>
<th colspan="3" class="ibheader">Andere Bezeichnungen und <a href="Liste_astronomischer_Kataloge" title="Liste astronomischer Kataloge">Katalogeinträge</a>
</th></tr>
<tr>
<td colspan="3" style="padding:0;"><table class="wikitable" style="box-sizing:border-box; width:100%; font-size:smaller; margin:0; border-collapse:collapse;"><tbody><tr><th style="white-space:nowrap;">Katalog</th><th>A / θ<sup>1</sup></th><th>B / θ<sup>2</sup></th></tr><tr><td style="white-space:nowrap;"><a href="Bayer-Bezeichnung" title="Bayer-Bezeichnung">Bayer-Bezeichnung</a></td><td colspan="2" style="white-space:nowrap;">θ&nbsp;Eridani</td></tr><tr><td style="white-space:nowrap;"><a href="C%C3%B3rdoba-Durchmusterung" title="Córdoba-Durchmusterung">Córdoba-Durchmusterung</a></td><td colspan="2" style="white-space:nowrap;"> CD -40°&nbsp;771</td></tr><tr><td style="white-space:nowrap;"><a href="Hipparcos-Katalog" title="Hipparcos-Katalog">Hipparcos-Katalog</a></td><td colspan="2" style="white-space:nowrap;">HIP 13847 <a rel="nofollow" class="external autonumber" href="https://vizier.u-strasbg.fr/viz-bin/VizieR-5?-source=I/311&amp;-out.all&amp;-out.max=10&amp;HIP==13847">[1]</a></td></tr><tr><td style="white-space:nowrap;"><a href="Bright-Star-Katalog" title="Bright-Star-Katalog">Bright-Star-Katalog</a></td><td style="white-space:nowrap;"> HR 897 <a rel="nofollow" class="external autonumber" href="https://cdsarc.u-strasbg.fr/viz-bin/VizieR-5?-source=V/50&amp;-out.all&amp;-out.max=10&amp;HR==897">[2]</a></td><td style="white-space:nowrap;"> HR 898 <a rel="nofollow" class="external autonumber" href="https://cdsarc.u-strasbg.fr/viz-bin/VizieR-5?-source=V/50&amp;-out.all&amp;-out.max=10&amp;HR==898">[3]</a></td></tr><tr><td style="white-space:nowrap;"><a href="Henry-Draper-Katalog" title="Henry-Draper-Katalog">Henry-Draper-Katalog</a></td><td style="white-space:nowrap;"> HD 18622 <a rel="nofollow" class="external autonumber" href="https://cdsarc.u-strasbg.fr/viz-bin/VizieR-5?-source=III/135A/catalog&amp;-out.all&amp;-out.max=10&amp;HD==18622">[4]</a></td><td style="white-space:nowrap;"> HD 18623 <a rel="nofollow" class="external autonumber" href="https://cdsarc.u-strasbg.fr/viz-bin/VizieR-5?-source=III/135A/catalog&amp;-out.all&amp;-out.max=10&amp;HD==18623">[5]</a></td></tr><tr><td style="white-space:nowrap;"><a href="SAO-Katalog" title="SAO-Katalog">SAO-Katalog</a></td><td style="white-space:nowrap;"> SAO 216113 <a rel="nofollow" class="external autonumber" href="https://cdsarc.u-strasbg.fr/viz-bin/VizieR-5?-source=I/131A/sao&amp;-out.all&amp;-out.max=10&amp;SAO==216113">[6]</a></td><td style="white-space:nowrap;"> SAO 216114 <a rel="nofollow" class="external autonumber" href="https://cdsarc.u-strasbg.fr/viz-bin/VizieR-5?-source=I/131A/sao&amp;-out.all&amp;-out.max=10&amp;SAO==216114">[7]</a></td></tr><tr><td style="white-space:nowrap;"><a href="Tycho-1-Katalog" title="Tycho-1-Katalog">Tycho-Katalog</a></td><td style="white-space:nowrap;">TYC 7563-1016-1<a rel="nofollow" class="external autonumber" href="https://cdsarc.u-strasbg.fr/viz-bin/VizieR-5?-source=I/259&amp;-out.all&amp;-out.max=100&amp;TYC1=7563&amp;TYC2=1016&amp;TYC3=1">[8]</a></td><td style="white-space:nowrap;">TYC 7563-1017-1<a rel="nofollow" class="external autonumber" href="https://cdsarc.u-strasbg.fr/viz-bin/VizieR-5?-source=I/259&amp;-out.all&amp;-out.max=100&amp;TYC1=7563&amp;TYC2=1017&amp;TYC3=1">[9]</a></td></tr><tr><td style="white-space:nowrap;"><a href="Washington_Double_Star_Catalog" title="Washington Double Star Catalog">WDS-Katalog</a></td><td colspan="2" style="white-space:nowrap;"> WDS J02583-4018</td></tr></tbody></table>
</td></tr>

</tbody></table><p><span style="display:none">Vorlage:Infobox Doppelstern/Wartung/Einzelkoordinaten</span>
</p><p><b>Acamar</b> (auch Akamar) ist der Name des <a href="Stern" title="Stern">Sterns</a> <b>θ Eridani</b> (Theta Eridani) im <a href="Sternbild" title="Sternbild">Sternbild</a> <a href="Eridanus_(Sternbild)" title="Eridanus (Sternbild)">Eridanus</a>. Der Name ist abgeleitet aus <a href="Arabische_Sprache" title="Arabische Sprache">arabisch</a> <bdo dir="ltr"><bdi dir="rtl" lang="ar" class="arabic spanAr" style="unicode-bidi:isolate;font-size:120%;">آخر النهر</bdi></bdo>, <a href="DIN_31635" title="DIN 31635">DMG</a> <i><span lang="ar-Latn" style="font-style:italic">Āḫir an-nahr</span></i> ‚Ende des Flusses‘.<sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup>
</p><p>Acamar ist ein <a href="Doppelstern" title="Doppelstern">Doppelstern</a>, bestehend aus einem +3,2&nbsp;<a href="Scheinbare_Helligkeit" title="Scheinbare Helligkeit">mag</a> hellen Hauptstern der <a href="Spektralklasse" title="Spektralklasse">Spektralklasse</a> A3 und einem Begleiter der Spektralklasse A1 mit der Helligkeit +4,1&nbsp;mag. Der Winkelabstand beider Sterne beträgt 8,2<a href="Bogensekunde" class="mw-redirect" title="Bogensekunde">"</a>, wobei der Begleiter bezüglich des Hauptsternes einen Positionswinkel von 90 Grad einnimmt.<br>Acamar hat eine Entfernung von etwa 167&nbsp;<a href="Lichtjahr" title="Lichtjahr">Lichtjahren</a> (50&nbsp;<a href="Parsec" title="Parsec">Parsec</a>).
</p><p>Um das System in Einzelsterne aufzulösen, benötigt man ein <a href="Teleskop" title="Teleskop">Teleskop</a> von mindestens 5 Zentimetern Öffnung.
</p>

<div class="mw-heading mw-heading2"><h2 id="Namengebend">Namengebend</h2></div>
<div class="mw-heading mw-heading3"><h3 id="Erwähnung_in_der_Science-Fiction"><span id="Erw.C3.A4hnung_in_der_Science-Fiction"></span>Erwähnung in der Science-Fiction</h3></div>
<p>In <a href="Star_Trek" title="Star Trek">Star Trek</a> kommt ein Planet namens Acamar III vor, der von den Acamarianern bewohnt wird.
</p><p>In <a href="Helldivers_2" title="Helldivers 2">Helldivers 2</a> kann zeitweise auf einem Planeten namens Acamar IV gespielt werden, der als grasbedeckte Hügellandschaft dargestellt wird.<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup>
</p>
<div class="mw-heading mw-heading3"><h3 id="Schiff">Schiff</h3></div>
<p>Das <a href="Flusskreuzfahrtschiff" class="mw-redirect" title="Flusskreuzfahrtschiff">Flusskreuzfahrtschiff</a> Acamar ist nach dem Stern benannt.
</p><p><i>Siehe auch:</i> <a href="Liste_der_Sterne" class="mw-redirect" title="Liste der Sterne">Liste der Sterne</a>
</p>
<div class="mw-heading mw-heading2"><h2 id="Einzelnachweise">Einzelnachweise</h2></div>
<ol class="references">
<li id="cite_note-SIMBAD-1"><span class="mw-cite-backlink">↑ <sup><a href="#cite_ref-SIMBAD_1-0">a</a></sup> <sup><a href="#cite_ref-SIMBAD_1-1">b</a></sup> <sup><a href="#cite_ref-SIMBAD_1-2">c</a></sup> <sup><a href="#cite_ref-SIMBAD_1-3">d</a></sup> <sup><a href="#cite_ref-SIMBAD_1-4">e</a></sup></span> <span class="reference-text"><span class="cite"><a rel="nofollow" class="external text" href="http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=acamar&amp;submit=SIMBAD+search"><i>tet Eri.</i></a> In: <i><a href="SIMBAD" title="SIMBAD">SIMBAD</a>.</i> <a href="Centre_de_Donn%C3%A9es_astronomiques_de_Strasbourg" title="Centre de Données astronomiques de Strasbourg">Centre de Données astronomiques de Strasbourg</a>,<span class="Abrufdatum"> abgerufen am 19.&nbsp;August 2018</span>.</span><span style="display: none;" class="Z3988" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&amp;rfr_id=info%3Asid%2Fde.wikipedia.org%3AAcamar&amp;rft.title=tet+Eri&amp;rft.description=tet+Eri&amp;rft.identifier=http%3A%2F%2Fsimbad.u-strasbg.fr%2Fsimbad%2Fsim-basic%3FIdent%3Dacamar%26submit%3DSIMBAD%2Bsearch&amp;rft.publisher=%5B%5BCentre+de+Donn%C3%A9es+astronomiques+de+Strasbourg%5D%5D">&nbsp;</span></span>
</li>
<li id="cite_note-Gaia-DR3-2"><span class="mw-cite-backlink">↑ <sup><a href="#cite_ref-Gaia-DR3_2-0">a</a></sup> <sup><a href="#cite_ref-Gaia-DR3_2-1">b</a></sup></span> <span class="reference-text"><a rel="nofollow" class="external text" href="https://vizier.cds.unistra.fr/viz-bin/VizieR-5?-ref=VIZ69385fbe3a93dc&amp;-out.add=.&amp;-source=I/355/gaiadr3&amp;-c=044.56501351691%20-40.30457515964,eq=ICRS,rs=2&amp;-out.orig=o">Gaia data release 3</a> (<a href="Gaia_DR3" title="Gaia DR3">Gaia DR3</a>) für θ<sup>1</sup> Eri, Juni 2022.</span>
</li>
<li id="cite_note-Kaler-3"><span class="mw-cite-backlink">↑ <sup><a href="#cite_ref-Kaler_3-0">a</a></sup> <sup><a href="#cite_ref-Kaler_3-1">b</a></sup> <sup><a href="#cite_ref-Kaler_3-2">c</a></sup></span> <span class="reference-text"><span class="cite">Jim Kaler: <a rel="nofollow" class="external text" href="http://stars.astro.illinois.edu/sow/acamar.html"><i>ACAMAR.</i></a><span class="Abrufdatum"> Abgerufen am 19.&nbsp;August 2018</span>.</span><span style="display: none;" class="Z3988" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&amp;rfr_id=info%3Asid%2Fde.wikipedia.org%3AAcamar&amp;rft.title=ACAMAR&amp;rft.description=ACAMAR&amp;rft.identifier=http%3A%2F%2Fstars.astro.illinois.edu%2Fsow%2Facamar.html&amp;rft.creator=Jim+Kaler">&nbsp;</span></span>
</li>
<li id="cite_note-4"><span class="mw-cite-backlink"><a href="#cite_ref-4">↑</a></span> <span class="reference-text">Paul Kunitzsch: <cite style="font-style:italic">Arabische sternnamen in europa</cite>. Wiesbaden 1959, <span style="white-space:nowrap">S.<span style="display:inline-block;width:.2em">&nbsp;</span>99</span> (<a rel="nofollow" class="external text" href="https://books.google.de/books?id=TTs5SlDWpU0C&amp;pg=PA99#v=onepage">eingeschränkte Vorschau</a> in der Google-Buchsuche).<span class="Z3988" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rfr_id=info:sid/de.wikipedia.org:Acamar&amp;rft.au=Paul+Kunitzsch&amp;rft.btitle=Arabische+sternnamen+in+europa&amp;rft.date=1959&amp;rft.genre=book&amp;rft.pages=99&amp;rft.place=Wiesbaden" style="display:none">&nbsp;</span></span>
</li>
<li id="cite_note-5"><span class="mw-cite-backlink"><a href="#cite_ref-5">↑</a></span> <span class="reference-text"><span class="cite"><a rel="nofollow" class="external text" href="https://helldivers.wiki.gg/wiki/Acamar_IV"><i>Acamar IV.</i></a><span class="Abrufdatum"> Abgerufen am 3.&nbsp;Mai 2025</span> (englisch).</span><span style="display: none;" class="Z3988" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&amp;rfr_id=info%3Asid%2Fde.wikipedia.org%3AAcamar&amp;rft.title=Acamar+IV&amp;rft.description=Acamar+IV&amp;rft.identifier=https%3A%2F%2Fhelldivers.wiki.gg%2Fwiki%2FAcamar_IV&amp;rft.language=en">&nbsp;</span></span>
</li>
</ol></div><!--htdig_noindex--><div><div class="zim-footer">
Dieser Artikel wurde von <a class="external text" title="Zuletzt bearbeitet am 2026-01-03" href="https://de.wikipedia.org/wiki/?title=Acamar&amp;oldid=263005539">Wikipedia</a> herausgegeben. Der Text ist unter <a class="external text" href="https://creativecommons.org/licenses/by-sa/4.0/deed.de">Creative Commons Attribution-Share Alike 4.0</a> verfügbar, sofern nicht anders angegeben. Für die Mediendateien können zusätzliche Bedingungen gelten.
</div>
</div><!--/htdig_noindex--></div>
</div>
</main>
</div>
</div>
</div>
<script src="./_webp_/webpHandler.js"></script>

</body></html>