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| physical object > artifact > device > instrument > telescope > electromagnetic telescope > Earth based telescope > equatorial telescope > German equatorial telescope > The Thaw Refractor |
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| The Thaw Refractor comparison table | ||||||||||||||||||||
| Subject | has comment | has reference | has location | has owner | has latitude | has lens maker | is a kind of | has optical design | has temperature | has altitude | is an instance of | has synonym | has focal ratio | has aperture | has mount | has lens type | has definition | has mounting manufacturer | has longitude | has creation date |
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| German equatorial telescope | in degrees, minutes, seconds (N or S) | equatorial telescope | ambient | height above sea level in meters | German equatorial | the person, company or institution that constructed the mounting | in degrees, minutes, seconds (E or W) | |||||||||||||
| refractor | astroweb | the person, company or institution that created the lens | optical telescope | visual refractor | doublet | A device for gathering and amplifying light by means of a lens. | ||||||||||||||
| The Thaw Refractor | Originally had a Brashear visual objective (1914); present one is corrected for red light | astroweb | Pittsburgh, PA, US | Allegheny Observatory | 40° 29' N | R.E. Sumner | Red-light refractor | ambient | 380 m | German equatorial telescope | 30 inch | f/18.6 | 0.76 m | German equatorial | doublet | Warner and Swasey | 80° 01' W | 1985 |
Next German equatorial telescope: Thompson Refractor Up: German equatorial telescope, refractor Previous German equatorial telescope: Potsdam Refractor