Slide set: [Astronomical slides by Duboscq] (lecture: Duboscq, at least 67 slides, 1876-1886)
![Spectre d'Aldebaran alpha Taurau, Spectre de Beltegeuse alpha orion comparés avec le spectre solaire et [illegible] elements terrestre](../imagebank/slide/thumbs/5114/5114196a.jpg "Spectre d'Aldebaran alpha Taurau, Spectre de Beltegeuse alpha orion comparés avec le spectre solaire et [illegible] elements terrestre")
![Composantes de l'etoile beta du Cygne Hugghins [?]](../imagebank/slide/thumbs/5114/5114197a.jpg "Composantes de l'etoile beta du Cygne Hugghins [?]")
![Spectre de l'etoile variable μ [mu] cephée / Cephei](../imagebank/slide/thumbs/5114/5114198a.jpg "Spectre de l'etoile variable μ [mu] cephée / Cephei")
Duboscq, France
contained in [Astronomy Sonnenborgh - box 01] (lecture: manufacturer unknown, 50 slides, c.1905)
contained in [Astronomy Sonnenborgh - box 09] (lecture: manufacturer unknown, 44 slides, c.1935)
Examples of slides produced by Duboscq on astronomical matters: colour spectra of diverse stars phenomena. The slides are thicker than usual standard format slides, about 0,8 cm. The (photographic?) Colour strip is mounted between the glasses.
Dating based on reference on slide and death of Jules Duboscq.
10 slides in Sonnenborgh: Museum en Sterrenwacht Utrecht
Record created by Sarah Dellmann and Richard Crangle. Last updated 10 February 2017
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