Keywords: Adalbert Krueger.jpg Portrait of en Adalbert Krüger The writing on the book refers to two of the observatories where he worked Helsingfors 1875 and Gotha 1877 Painting by de Ludwig Bohnstedt 1822-1885 Gotha Now located at the en University of Helsinki Observatory Photo Eva Isaksson Transferred from http //en wikipedia org en wikipedia 1829 Ludwig Bohnstedt PD-ART PD-art original upload log page en wikipedia Adalbert_Krueger jpg 2007-11-02 11 45 Eisaksso 962×1537×8 1107262 bytes <nowiki>Painting by Ludwig Bohnstedt 1822-1885 Gotha Now located in the University of Helsinki Observatory Photo Eva Isaksson </nowiki> 2007-10-10 03 06 Carcharoth 1204×1843×8 423664 bytes <nowiki>Artwork of Adalbert Krueger obtained from http //de wikipedia org/wiki/Bild Adalbert_Krueger jpg with a similar image available from http //www astro helsinki fi/vaiheet/7 html with the image at http //www astro helsinki fi/vaiheet/kuvat/88p J</nowiki> Adalbert Krüger Ludwig Bohnstedt |