German equatorial telescope Comparison Table

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German equatorial telescope comparison table

Subject has comment has location has owner has latitude has lens maker has optical design has operator has altitude has synonym has focal ratio has aperture has mounting manufacturer has longitude has creation date

26-inch Equatorial Washington, DC, US US Naval Observatory 38° 55' N Alvan Clark & Sons visual refractor 92 m f/15.0 0.66 m Warner and Swasey 77° 04' W 1873

36-inch Refractor Front surface of crown element refigured in 1987 Mount Hamilton, Calif., US Lick Observatory 37° 20' N Alvan Clark & Sons visual refractor 1290 m 36 inch f/19.7 0.895 m Warner and Swasey 121° 39' W 1888

Grosser Refraktor Vienna, Austria Astronomisches Inst., Univ. Obs. 48° 14' N Grubb visual refractor 241 m f/15.7 0.67 m Grubb 16° 20' E 1880

Grosser Refraktor^2 Alt Treptow, Berlin, Germany Arehenhold-Sternwarte 52° 29' N C.A. Steinheil visual refractor 41 m f/30.9 0.68 m Hoppe-Berlin 13° 29'E 1896

Lunette Bischoffscheim Mont Gros, France Observatoire de Nice 43° 43' N Henry Brothers visual refractor 372 m f/24.2 0.74 m P. Gautier 7° 18' E 1886

McCormick Refractor Charlottesville, VA, US Leander McCormick Observatory 38° 02' N Alvan Clark & Sons visual refractor 264 m 26 inch f/14.9 0.667 m Warner and Swasey 78° 31' W 1883

Meudon Refractor Meudon, France Observatoire de Paris 48° 48' N Henry brothers visual refractor 162 m 33 inch f/19.5 0.83 m P Gautier 2° 14' E 1889

Potsdam Refractor Telegrafenberg, Potsdam, Germany Zentralinstitut fur Astrophysik 52° 23' N C.A. Steinheil visual refractor 107 m f/15.0 0.80 m Repsold 13°04'E 1899

The Thaw Refractor Originally had a Brashear visual objective (1914); present one is corrected for red light Pittsburgh, PA, US Allegheny Observatory 40° 29' N R.E. Sumner Red-light refractor 380 m 30 inch f/18.6 0.76 m Warner and Swasey 80° 01' W 1985

Thompson Refractor Herstmonceux, Sussex, England Royal Greenwich Observatory 50° 52' N Grubb visual refractor 34 m f/10.4 0.66 m Grubb 0° 20' E 1897

Yerkes 40-inch Refractor a focal reducer also provides an f/3 focus Williams Bay, Wisconsin, US Yerkes Observatory 42° 34' N Alvan Clark & Sons visual refractor University of Chicago 334 m 40 inch f/19.04 1.016 m Warner and Swasey 88° 33' W 1897

Subject	has comment	has location	has owner	has latitude	has lens maker	has optical design	has operator	has altitude	has synonym	has focal ratio	has aperture	has mounting manufacturer	has longitude	has creation date
26-inch Equatorial		Washington, DC, US	US Naval Observatory	38° 55' N	Alvan Clark & Sons	visual refractor		92 m		f/15.0	0.66 m	Warner and Swasey	77° 04' W	1873
36-inch Refractor	Front surface of crown element refigured in 1987	Mount Hamilton, Calif., US	Lick Observatory	37° 20' N	Alvan Clark & Sons	visual refractor		1290 m	36 inch	f/19.7	0.895 m	Warner and Swasey	121° 39' W	1888
Grosser Refraktor		Vienna, Austria	Astronomisches Inst., Univ. Obs.	48° 14' N	Grubb	visual refractor		241 m		f/15.7	0.67 m	Grubb	16° 20' E	1880
Grosser Refraktor^2		Alt Treptow, Berlin, Germany	Arehenhold-Sternwarte	52° 29' N	C.A. Steinheil	visual refractor		41 m		f/30.9	0.68 m	Hoppe-Berlin	13° 29'E	1896
Lunette Bischoffscheim		Mont Gros, France	Observatoire de Nice	43° 43' N	Henry Brothers	visual refractor		372 m		f/24.2	0.74 m	P. Gautier	7° 18' E	1886
McCormick Refractor		Charlottesville, VA, US	Leander McCormick Observatory	38° 02' N	Alvan Clark & Sons	visual refractor		264 m	26 inch	f/14.9	0.667 m	Warner and Swasey	78° 31' W	1883
Meudon Refractor		Meudon, France	Observatoire de Paris	48° 48' N	Henry brothers	visual refractor		162 m	33 inch	f/19.5	0.83 m	P Gautier	2° 14' E	1889
Potsdam Refractor		Telegrafenberg, Potsdam, Germany	Zentralinstitut fur Astrophysik	52° 23' N	C.A. Steinheil	visual refractor		107 m		f/15.0	0.80 m	Repsold	13°04'E	1899
The Thaw Refractor	Originally had a Brashear visual objective (1914); present one is corrected for red light	Pittsburgh, PA, US	Allegheny Observatory	40° 29' N	R.E. Sumner	Red-light refractor		380 m	30 inch	f/18.6	0.76 m	Warner and Swasey	80° 01' W	1985
Thompson Refractor		Herstmonceux, Sussex, England	Royal Greenwich Observatory	50° 52' N	Grubb	visual refractor		34 m		f/10.4	0.66 m	Grubb	0° 20' E	1897
Yerkes 40-inch Refractor	a focal reducer also provides an f/3 focus	Williams Bay, Wisconsin, US	Yerkes Observatory	42° 34' N	Alvan Clark & Sons	visual refractor	University of Chicago	334 m	40 inch	f/19.04	1.016 m	Warner and Swasey	88° 33' W	1897

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