Hello friends, I'm trying to write a few descriptions of astronomical instruments from our museum.
It's nothing very difficult but with a few instruments I have a small problem. So I thought that maybe some of you could help me. Sometimes I'm not 100 % sure what's on the picture. And even when I'm sure and I know how to use it maybe you will have any interesting remarks or thoughts about presented tools. You can find pictures here: http://www.zegarysloneczne.pl/sundials/ instrument_13, instrument_14, instrument_15 - it's an astrolabe. What I'm not sure is the back part. How to read the scale ? What's that ? And I'm not sure about instrument_19. Looks like a part of an astrolabe but exactly which one ? From the shape I would say ot's rete, but when I look at engravements it looks more like the back side of the instrument. instrument_4 - any help ? calendar ? astrolabe ? instrument_5 - quadrant. Any extra info ? Extra help ? instrument_6 - it looks like an old mass dial. Am I right ? instrument_9 - sundial ? how does it work ? instrument_11, instrument_12 - ???? I can see a small sundial, and quadrant, but altogether what's that ? instrument_17 - compass with kardan suspension. But the scale ? Is it magnetic declination or something else ? instrument_18 - quadrant. If you have any additional and interesting info please share instrument_3 - ????? Thanks, gustek --------------------------------------------------- https://lists.uni-koeln.de/mailman/listinfo/sundial
