Comment by Devasta

<star

    bayerName="Beta Pictoris"

    spectralType="A6V"

    mass="1.75" 

    luminosity="8.7">

    <position 

        rightAscension="05h 47m 17.1s" 

        declination="−51°03′59&quot;"

        distance="63.4ly"/>

    <age min="20My" max="24My"/>

</star>

The tag-content ratio of XML is only as bad as you make it.