=wordThe =wordFlame =wordNebula (=wordalso =wordknown =wordas =wordthe =wordFlaming =wordTree =wordor =wordNGC =word2024) =wordis =wordan =wordemission =wordnebula =wordin =wordthe =wordconstellation =wordOrion. =wordThe =wordFlame =wordNebula =wordis =wordpart =wordof =wordthe =wordOrion =wordComplex, =worda =wordstar =wordformation =wordregion =wordthat =wordincludes =wordIC =word434 =wordwith =wordthe =wordHorsehead =wordNebula =wordand =wordthe =wordOrion =wordNebula.

=wordThe =wordapparent =wordextent =wordof =wordthe =wordflame =wordnebula =wordis =word30. =word0' =word× =word30. =word0' =wordand =wordits =worddistance =wordis =wordestimated =wordto =wordbe =wordabout =word1500 =wordlight-years. =wordSeen =wordfrom =wordEarth, =wordthe =wordflame =wordnebula =wordis =wordlocated =wordjust =wordeast =wordof =wordthe =wordbright =wordstar =wordAlnitak (=wordZeta =wordOrionis), =wordbut =wordthis =wordis =wordonly =wordapparent =wordproximity, =wordas =wordthe =wordlatter =wordis =wordonly =wordabout =wordhalf =wordas =wordfar =wordfrom =wordEarth =wordand =wordthere =wordis =wordno =wordconnection =wordbetween =wordthe =wordtwo =wordobjects.

=wordInfrared =wordstudies =wordof =wordthe =wordnebula =wordhave =wordshown =worda =worddense =wordand =wordvery =wordyoung =wordstar =wordcluster =wordin =wordthe =wordcentral =wordregion =wordof =wordthe =wordflame =wordnebula, =wordobscured =wordby =wordclouds =wordof =worddust =wordin =wordvisible =wordlight. =wordThe =wordage =wordof =wordthe =wordcluster =wordis =wordestimated =wordto =wordbe =wordless =wordthan =worda =wordmillion =wordyears; =wordmany =wordof =wordits =wordstars =wordare =wordsurrounded =wordby =wordaccretion =worddiscs. =wordOne =wordof =wordthese =wordstars, =wordIRS2b, =wordhas =wordalso =wordbeen =wordidentified =wordas =worda =wordpossible =wordsource =wordof =wordionization =wordfor =wordthe =wordnebula.

=wordDer =wordFlammennebel (=wordauch =wordNGC =word2024) =wordist =wordein =wordEmissionsnebel =wordim =wordSternbild =wordOrion. =wordDer =wordFlammennebel =wordist =wordTeil =worddes =wordOrion-Komplexes, =wordeiner =wordSternentstehungsregion, =worddie =wordIC =word434 =wordmit =worddem =wordPferdekopfnebel =wordund =worddem =wordOrionnebel =wordumfasst.

=wordDie =wordscheinbare =wordAusdehnung =worddes =wordFlammennebels =wordbeträgt =word30. =word0' =word× =word30. =word0' =wordund =wordseine =wordEntfernung =wordwird =wordauf =wordetwa =word1500 =wordLichtjahre =wordgeschätzt. =wordVon =wordder =wordErde =wordaus =wordgesehen =wordbefindet =wordsich =wordder =wordFlammennebel =wordknapp =wordöstlich =worddes =wordhellen =wordSterns =wordAlnitak (=wordZeta =wordOrionis), =wordaber =worddas =wordist =wordnur =wordscheinbare =wordNähe, =wordda =worddieser =wordnur =wordetwa =wordhalb =wordso =wordweit =wordvon =wordder =wordErde =wordentfernt =wordist =wordund =wordkeine =wordVerbindung =wordzwischen =wordden =wordbeiden =wordObjekten =wordbesteht.

=wordInfrarot-Untersuchungen =worddes =wordNebels =wordhaben =wordeinen =worddichten =wordund =wordsehr =wordjungen =wordSternhaufen =wordin =wordder =wordZentralregion =worddes =wordFlammennebels =wordgezeigt, =wordder =wordvon =wordStaubwolken =wordim =wordsichtbaren =wordLicht =wordverdeckt =wordwird. =wordDas =wordAlter =worddes =wordSternhaufens =wordwird =wordauf =wordweniger =wordals =wordeine =wordMillion =wordJahre =wordgeschätzt; =wordviele =wordseiner =wordSterne =wordsind =wordvon =wordAkkretionsscheiben =wordumgeben. =wordEiner =worddieser =wordSterne, =wordIRS2b, =wordwurde =wordebenfalls =wordals =wordmögliche =wordIonisierungsquelle =wordfür =wordden =wordNebel =wordidentifiziert.