Doc G's Info Site
Home Page 
The Doc G Observatory
With Photos of Construction 
Doc's Biography
Kitt Peak Visit

Bibliography
History and Biography
History of Astronomy 
Biographies of Famous Astronomers 

Applications
Telescopes and Equipment 

Information and Pictures
Books with Photographs and Images 
About the Objects in the Univers

Attachments
Tubes and Adapters
Telescope Backplate Apertures 
Vignetting by Adapters
Adapters for Camera Lenses
Focusing Film Cameras 
Piggyback Mounts for Cameras 
JMI Focuser with DRO 
Parfocal Attachments for Imagers 
Design of Guider Mount
Optec Filter Slider 
Lumicon Off Axis Guider 
Weighted Eyepiece Adapter 
Discussion of 2" Diagonals 
Video Camera and Attachments 
Field Rotation and De-Rotators 

Optical Equipment
Adapters for Cameras and Imagers 
Focal Reducers and Extenders 
Star Field Rotation and De-Rotators 
Rotation in Polar Mounted Telescopes 
Design of Guider Mounts 
ETX as a Guider Telescope 
Lumicon Off Axis Guider 
Parfocal Attachments for the ST-7 
Focussing Accessories for Film Cameras 
Eyepieces and Field Stops Discussion with Photographs 
Filters for Imaging and Observing 
Design of a Projection Attachment 
 

Video and Digital Cameras
Video and Digital Cameras
Sensitive Video Camera 
Video Attachments
Digital Cameras-Three Canon Cameras D-30, Pro-90 and S300
 

Viewing, Perception and Filters
The Eye and Perception 

Use of Filters for Viewing
Filters for Three Color Imaging 
Solar Light 
The Use of Solar Filters 
Description of Optec Filter Slider 
 

Astronomical Software
LX200 Astro Programs
Using T-Point with the LX200
Using T-Point with modified LX200
 

Electrical Equipment
Motors and Controls
Principles of DC motor Operation 
Position Control Systems 
 

Observatory Design 
Observatory Design
Observatory Design 
Thermal Problems 
Control Rooms 
Winch Design
Many Other Issues 
 

NCRAL 2000 Paper
The Role of CCD Cameras
in Amateur Astronomy
 

SPECIAL SECTION
M. Hart on Astrophotography
Preface and Dedication 
Choosing Color Filters 
Focusing Film Cameras 
Thermal Effects in Guiding and Focusing SCTs 
Effective Use of PEC and Polar Alignment 

 

Imaging
Film Photography
List of  Interesting Objects 
Design of a Guider for Piggyback Photography 
Three Color Filters for Film and CCD Imagers 
Tubes and Adapters for Cameras 
Focal Reducers and Magnifiers 
Focussing Film Cameras 
Film and CCD Resolution 

CCD Imagers and  Accessories
Three Color Filters for Film and CCD 
CCD Resolution Compared to Film  (Pixels Shmixels) 
Tubes and Adapters for CCD Imagers 
ST7 Long Cable
ST7 as a Guider

LX200 Information
LX200 Mechanical Analysis
Flexibility of the Mount 
Mount Vibrations
Mount Oscillations 
Repair of the Declination Drive 
Rebuilding the Declination Drive 
Declination Drive Adjustment 
Electrical Aspects of the Declination Drive 
Focusing Mirror and Knob 
PEC Operation and Training 

LX200 Electrical Analysis
Main Computer Board Analysis 
Keypad Operation 
Keypad Code List 
Keypad - Hot Plugging 
Control Panel Ports 
Notes on Plugs and Cables 
Details about the Declination Drive 
PEC Operation and Training 
Notes on Plugs and Cables for the LX200 

Digital Camera Information
Digital Camera Cooler
 



The Doc G Observatory  Go to Home Index      e-mail --  ragreiner@mailbag.com
 

Dr. Greiner, shown above with the "Doc G" observatory, is Emeritus Professor of Electrical and Computer Engineering at the University of Wisconsin - Madison.

This roll-off building with a 12" LX200 telescope and accessories was donated to the Madison Astronomical Society by Dr. R. A. Greiner in June of 1996.  When rolled back, a windbreak remains which is supplied with various shelves for computers and accessories as well as a comfortable place to sit to operate the telescope locally from the computer. The telescope is also remotely controllable, by computer, from the nearby clubhouse.

In addition to the Meade 12" LX200 telescope in the DocG observatory, there is a second domed building shown in its most recent incarnation below.   The recently rebuilt ten foot building sports a new Pro Dome installed in June 2001.  The photo shows the installation of the dome almost completed.  The Pro Dome with full automation using Digital Dome Works and a second Meade 12" LX200 telescope will be operational in September 2001.  The Pro Dome, the LX200 telecope and numerous accessories including an SBIG ST-4 imager/guider were donated to the MAS by Dr. Greiner.
 

The MAS now has two computer controlled telescopes which can be operated from the nearby club house.
Additionally there is a 17" Dobsonian in a roll-off building and a 16" CAT.  The 16" CAT is a long focal length,  7900 mm,  f19 designed mainly for planetary observation.  The club house is a large all season building used for meetings and additional equipment.  It is heated and air conditioned.  The dark site is  the Yanna Research Station located near Brooklyn, Wisconsin about 30 miles South of Madison, Wisconsin.  It is owned and operated by the Madison Astronomical Society.

More Pictures of the Doc G Observatory

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