Den norske astronomen Christopher Hansteen.
anonymous; unknown
1884
<i><a href="//commons.wikimedia.org/wiki/Verdens_Gang" class="mw-redirect" title="Verdens Gang">Verdens Gang</a></i>, September 27, 1884. <a rel="nofollow" class="external autonumber" href="https://urn.nb.no/URN:NBN:no-nb_digavishefte_135900">[1]</a>