the kleinfriesen observatory 48 inventory

last update on 2014, August 6



main instruments:

- 1 GSO880 10inch Newton F/5
- 1 EQ 6 Mount with Synscan expansion (since May 2011)
- 1 Meade ETX70AT Refractor
- 1 60/800 Tasco Refractor
- 1 50/540 Carl Zeiss Jena - a do it yourself Refractor
- 1 4x eyepiece revolver from CARL Zeiss Jena
- 1 justified laser from TS
- 1 10x50 binocular
- various eyepieces from Carl Zeiss Jena, TS and Meade
- various filter (moon / sun / nebulae) from TS and

- 1 TouCamProII 840K with sc1 modification
- 1 Canon Power Shot S3 IS with canon programming
- 1 Canon 1100D since 2012

technical data of kleinfriesen observatory 48:

- 80 cm foundation on frost protection,
  pressed with heavy vibratory plate
- insulated on that approx. 28 cm thick concrete (B25)
  base dry of approx. 5 weeks
- 7 x painted with grey concrete color
- M8 Screw joint of the observatory external walls
- M16 Screw joint of the telescope column
- Weight of the GFK observatory approx. 230Kg
  according to manufacturer

data of telescope column:

Steel sheet 4cm x 30cm x 30cm as a bottom cover
with 8 holes x 18mm diameter for fixing the base
The column itself has aprrox. 2 cm wall
and rolled steel with 125 cm is length above
components became 2 welding seam at 115 A
electrical with electrodes 2,5mm welded.
15 cm steel flange with connections to EQ6 Mount
and rejuvenation turned for the column in that 3x 19
screw thread let in for the screw joint to EQ6 Mount
and column on all components above.
All screws with color Hammerit became a matt way
black. Takes approx. 2 weeks to be hardened on
the column. The power cable inlet is
(3x1,5 mm˛ underground cable) filled up
the column with approx. 1 bag game sand,
in order to get still more stability
on 2007 september 16th, i inserted a
10 ic coin (ten icelandic crown) on the sand
at the inside of the column.
The entire weight of the column and telescope is
approx. 180 kg, according to configuration level!

telescope data

- 1 GSO 880 10inch Newton (14Kg) on EQ6 Mount with
  17,5 Kg counterweights

an advice for the best picture quality:

- self built main mirror cooling internal above the main mirror,
  and external at the main mirror;

- 1 viewfinder 8x50mm

GSO880 with 60/800 Refractor Mounted on EQ6 in 2,3m Home Sirius Dome



(c) R.Sehling