Hoher List Observatory

Location The Observatorium Hoher List is located in the mountain range called Eifel about 100 km SW of Bonn, Germany. Its altitude is 533 m, its geographical coordinates are 6°51' E and 50°09'48" N. The Observatory was built between 1952 and 1954 and extended in 1964/65. Today it has 6 domes (red circles in the following picture, see also the big version) housing the following telescopes:

• Astronomical images taken with Hoher List telescopes (M. Altmann)

Technical Information

Telescopes

• 1 m - Cassegrain-Nasmyth-Telecope

D = 106 cm, f = 14.5 m, constructed in 1965, dome 6
• 60 cm - Ritchey-Chretien-Telescope

D = 60 cm, f = 4.8 m, constructed in 1984, dome 3
• Schmidt-Telescope

D = 34/50 cm, f = 1.4 m, constructed in 1953, dome 1
• Bonn Double Refractor   (long-focus astrograph)

D = 36 cm, f = 5.4 m (visual tube); D = 30 cm, f = 5.1 m (photographic tube) constructed in 1899, at Hoher List since 1965, dome 5
• Astrograph   (Sonnefeld-Vierlinser)

D = 30 cm, f = 1.5 m, constructed in 1925, optics from 1968, dome 2
• Schröder-Refractor

D = 16 cm, f = 1.9 m, constructed in 1874, dome 4

Developments of telescope instrumentation

The instrumentation group develops instruments for the observatory (e.g. HoLiCam, ToAstCam) and uses the telescopes as test sites for instrumentations build for other observatories (e.g. WWFPP, BUSCA  for the Calar Alto Observatory).

With BUSCA the "Bonn Shutter" protoype was developed. Bonn Shutters are now in operation with the largest mosaic cameras all over the world.

The 1m Cassegrain telescope is currently beeing upgraded for remote observing.