Slide set: [Astronomy Sonnenborgh - box 09] (lecture: manufacturer unknown, 44 slides, c.1935)
![T en ρ [Rho, density] voor inwendige van de zon](../imagebank/slide/thumbs/5114/5114215a.jpg "T en ρ [Rho, density] voor inwendige van de zon")
![Melkweg Z[omerse] avondhemel](../imagebank/slide/thumbs/5114/5114231a.jpg "Melkweg Z[omerse] avondhemel")
manufacturer unknown, Netherlands
contains [Astronomical slides by Duboscq] (lecture: Duboscq, at least 67 slides, 1876-1886)
continued from [Astronomy Sonnenborgh - Box 08] (lecture: manufacturer unknown, 51 slides, 1900-1912)
continued by [Astronomy Sonnenborgh - Box 10] (lecture: manufacturer unknown, 50 slides, in/after 1911)
This set contains all slides in box 9 of the Utrecht observatory. The slides were used in teaching of astrophysics. In this box were also slides on light spectra produced by Julien Duboscq. Those slides (in the box with the order numbers 17 to 23) are listed and illustrated in the respective slide set (see 'related slide sets'). Greek letters in formula and star names are transcribed but it might well be that the transcription is not always correct.
Slide numbering: Same slidenumbers 433-438 in Sonnenborgh box 09 and box 10
Slide numbering: Same slidenumbers 439-469 in Sonnenborgh box 09 and box 11
34 slides in Sonnenborgh: Museum en Sterrenwacht Utrecht
Record created by Sarah Dellmann and Gert Wilkens. Last updated 9 March 2018
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