Baader Planetarium MPE DADOS User Manual Download Page 18 | Manualshive

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18

3. Configuring DADOS for

astronomical observation

The spectrograph should be set up correctly to ensure proper

function.

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Summary of Contents for MPE DADOS

Page 1: ......

Page 2: ...he DADOS spectrograph project are Max Planck Institut f r Extraterrestrische Physik www mpe mpg de CAOS www eso org projects caos Baader Planetarium GmbH Zur Sternwarte D 82291 Mammendorf Tel 49 0 814...

Page 3: ...most out of your DADOS Spectrograph please read this instruction manual thoroughly before starting to work with the spectrograph Keep this User s Guide available for future reference and visit the Ba...

Page 4: ...Standard accessories DADOS spectrograph Allen Wrench 1 5 mm Eyepiece 20mm Allen Wrench 1 3 mm Eyepiece 10mm 1 Stop ring 1905131 Slit Viewer Assy Guiding lens with M28 8 thread T2 Quick Changer 2456313...

Page 5: ...minator 3 1 Slit viewer port 4 Slit viewer port locking screws 5 Micrometer 6 Rotation stage counter spring pre adjusted do not touch 7 Focuser 8 Focuser locking screw 9 Grating angle locking screw Fo...

Page 6: ...19 3 1 1 Astronomical CCD camera 19 3 1 2 SLR or D SLR body 22 3 2 Fine focusing of the camera objective 24 3 3 Selecting wavelength range 25 3 4 Using the slit viewer 26 3 4 1 Attaching an eyepiece t...

Page 7: ...7 APPENDIX B CARE OF THE OPTICAL COMPONENTS 43 APPENDIX C SPECIFICATIONS 44 APPENDIX D OPTIONAL ACCESSORIES 46 APPENDIX E BIBLIOGRAPHY 47...

Page 8: ...ized for telescopes up to 14 aperture at f 10 Choice of 3 slits 25 35 and 50 m A red LED provides background illumination of the slits for easier focusing of a self guiding camera Default grating of 2...

Page 9: ...9 W WA AR RN NI IN NG G Never aim DADOS straight to the Sun Irreversible eye damage will occur...

Page 10: ...eyepiece to the focuser Remove the T2 dust cap by rotating it counterclockwise Mount the Baader T2 quick changing system 2456313 2456320 Lock the Baader T2 quick changing system and mount the focusin...

Page 11: ...to the focusing eyepiece holder Lock the eyepiece with any of the three locking screws 2 2 Focusing the spectrum Point the 2 nosepiece 1 on the page 5 diagram to a fluorescent light source or a neon l...

Page 12: ...12 Lock the focus with the locking screw once sharp focus is achieved Rotate the focusing eyepiece holder for fine focus adjustments...

Page 13: ...ng the spectral range Slightly loosen the grating angle locking screw 9 Center the spectral lines of your choice by adjusting the micrometer Tighten the grating angle locking screw 9 to secure the sel...

Page 14: ...fically you can quickly set up the instrument to observe Neon lamps some pilot lights in washing machines multi outlet power strips etc Fluorescent lamps Continuous spectral sources like tungsten or h...

Page 15: ...mm grating HeAr calibration lamp Neon Continuous 1st and 2nd order Solar spectrum Note Spectra obtained with Canon 10D EOS Camera at different grating angles The calibration Lamp is only visible in t...

Page 16: ...nes mm grating HeAr calibration lamp Neon Fluorescent Continuous Solar spectrum Note Spectra obtained with Canon 10D EOS Camera at different grating angles The Calibration Lamp is only visible in the...

Page 17: ...17...

Page 18: ...18 3 Configuring DADOS for astronomical observation The spectrograph should be set up correctly to ensure proper function...

Page 19: ...of 9 m Detectors having larger chip size than 13 8 x 9 2 mm may be used however the optical image quality and therefor the resolution will slightly decrease at the edges Prepare the detector to be use...

Page 20: ...T2 change ring onto the SBIG detector Mount the quick changer onto the T2 male thread of the DADOS collimator focuser 7 Join the detector and the change ring combo Rotate the camera into the desired...

Page 21: ...21 Clamp the camera by tightening the locking screw of the T2 quick changer DADOS with imaging detector mounted...

Page 22: ...ody Obtain the appropriate T Adapter for your type of camera Prepare the DSLR camera body to be attached to the spectrograph Screw the DSLR T Ring onto the spectrograph focusing unit Attach the camera...

Page 23: ...23 Open the three set screws of the Camera T Ring Rotate the camera body into the desired position Lock the three set screws of the camera T Ring DADOS with mounted DSLR camera...

Page 24: ...mera or a SLR body follow the instructions below to achieve the best possible focus of the instrument Loosen the focuser locking screw 8 to focus the detector Rotate the focuser 7 in order to focus th...

Page 25: ...on certain spectral lines by rotating the micrometer 5 Prepare spectral charts of labora tory lamps Tighten the grating angle locking screw to secure the selected setting If you want to download the...

Page 26: ...eyepiece to the slit viewer Mount the slit viewer onto the 20mm DADOS guiding eyepiece Slit viewer attached to eyepiece Slide the 1 stop ring onto the eyepiece s chrome sleeve and lock it Insert the e...

Page 27: ...of the three slits lock the eyepiece by using the locking screw 4 of the 1 slit viewing port 3 Open the set screws of the stop ring and move it ring down to sit flush on top of the eyepiece holder Ti...

Page 28: ...wer Remove the 18mm long 1 extension tube of the slit viewer assy Mount the remaining body of the slit viewer onto the 1 nosepiece of the webcam Example Celestron NexImage 5 with the 1 nosepiece Slide...

Page 29: ...Webcam body until it is approximately aligned with the major axis of DADOS After having focused the image of the three slits lock the webcam combo by using the locking screws 4 of the 1 slit viewing...

Page 30: ...30 Tighten the Stop Ring to secure the proper focus position Realign the orientation of the slit by rotating the Webcam DADOS with Webcam mounted on to the slit viewer port...

Page 31: ...agnify the image size of the 3 slits on the detector of the Webcam Remove the second 1 extension tube from the slit viewer body Loosen the headless set screw inside the slit viewer body by only turn u...

Page 32: ...older tube away from the Webcam in order to magnify the image Maximum magnification as seen by the CCD chip Lock the new position of the lens holder tube by tightening the headless set screw Remount t...

Page 33: ...telescope Use the provided 2 nosepiece to attach DADOS to your telescope Alternatively use the female T 2 thread M42 x 0 75 by removing the 2 nosepiece Or remove the female T 2 thread adapter to get a...

Page 34: ...h the proper orientation Attach DADOS onto the Telescope with a 2 interface if using the 2 nosepiece Align the instrument to the telescope For equatorial mounts the best orientation is with the slit p...

Page 35: ...dle of the slit by observing its image through an eyepiece or webcam Use the slit illuminator 2 to illuminate the slits and slowly slew the telescope to bring the star inside one of the slits Switch o...

Page 36: ...of the Illuminator counterclockwise approximately three turns to open the battery compartment Replace dead batteries with two round hearing aid batteries 1 5V such as Camilion AG 3 SR 41 2454306 Then...

Page 37: ...droplets of moisture and saliva can permanently damage the grating as well Do not use compressed or canned air This will likewise transport moisture grease or propellant onto the grating Any exchange...

Page 38: ...ing with holder readily available Loosen the grating angle locking screw 9 by one turn only Rotate the micrometer backwards to show an 8mm setting on the Vernier scale Use the 1 5mm Allen wrench to re...

Page 39: ...ing Release the headless set screw inside of the pressure plate by 2 full turns counterclockwise using the 1 5mm Allen wrench Remove the grating holder from the pressure plate Take the 900 lines mm gr...

Page 40: ...Rotate the grating holder to adjust the proper position in regard to the markings in the pressure plate Each mark indicates the position of a specific grating Be sure to use the proper one to achieve...

Page 41: ...sition 900 lines mm grating Lock the pressure plate by tightening the headless set screw clockwise Carefully replace the side plate grating holder assembly Replace and tighten the 4 screws that secure...

Page 42: ...42 Adjust the micrometer to a Vernier position of approximately 2 5 Lock the grating tilt mechanism by rotating the grating angle locking screw clockwise DADOS with grating exchanged...

Page 43: ...no cleaning will be necessary Dust can only be cleaned from the grating and slit by Baader Planetarium Do not clean gratings or slit yourself as this may void the warranty Lenses cannot be cleaned wit...

Page 44: ...C Storage temperature 30 to 35o C Humidity relative 0 to 80 Storage humidity 0 to 60 Optical Collimator focal ratio f 10 Collimator focal length 80 mm Objective focal length 96 mm Collimator Camera a...

Page 45: ...nm 2038 2000 371 3910 3000 561 5376 5000 800 Limiting magnitude for a 30 cm telescope with S N 50 and 20 minutes of exposure time For the 200 lines mm grating mv 8 For the 900 lines mm grating mv 6 N...

Page 46: ...240 8319 See the Baader Planetarium Web site for a complete list Reflection grating 25 x 25 x 9mm 900 lines mm mounted in quick exchanger Ref 2458556 Reflection grating 25 x 25 x 9mm 1200 lines mm mou...

Page 47: ...47 Dados rings for mounting on tripods or optical bench Ref 2458593 SpecTrack Autoguiding Software for star spectroscopy Ref 2458650...

Page 48: ...or James B Kaler Pub 1989 Pages 300 ISBN 0521304946 The Spectra and Structures of Simple Free Radicals an introduction to Molecular Spectroscopy Author Gerhard Herzberg Pub 1989 Pages 300 ISBN 0840486...

Page 49: ...stronomical Spectroscopy an Introduction to the Atomic and Molecular Physics of Astronomical Spectra Author Jonathan Tennyson Pub 2005 Pages 192 ISBN 1860945295 Spectroscopy the Key to the Stars Readi...

Page 50: ...chael A Seeds Pub 2000 Pages 656 ISBN 0534378552 The Observation and Analysis of Stellar Photospheres Author David F Gray Pub 2005 Pages 533 ISBN 0521851866 Observing Variable Stars Author Gerry A Goo...

Page 51: ...SBN 3540431020 The Analysis of Starlight One Hundred and Fifty Years of Astronomical Spectroscopy Author John B Hearnshaw Pub 2014 Pages 448 ISBN 978 1107031746 An Introduction to the Theory of Stella...

Page 52: ...Christopher R Kitchin Pub 1995 Pages 272 ISBN 0750303468 Atomic Spectra and Atomic Structure Author Gerhard Herzberg Pub 2007 Pages 527 ISBN 140675322X Observers Guide to Stellar Evolution Author Mik...

Page 53: ...hor John James Pub 2007 Pages 204 ISBN 10 0521864631 Practical Amateur Spectroscopy Author Stephen F Tonkin et al Pub 2002 Pages 210 ISBN 1852334894 Journey from the Center of the Sun Author Jack B Zi...

Page 54: ...schek Pub 1995 Pages 324 ISBN 052141136X The Classification of Stars Author Carlos Jaschek Pub 1990 Pages 413 ISBN 0521267730 Introduction to Stellar Astrophysics Vol 3 Stellar Structure and Evolution...

Page 55: ...13 Pages 268 ISBN 978 1107601796 An Introduction to Modern Astrophysics Author Bradley W Carroll Dale A Ostlie Pub 2013 Pages 1478 ISBN 978 1292022932 Stellar Evolution Physics Physical Processes in S...

Page 56: ...volution of Single Stars Author Icko Iben jr Pub 2012 Pages 616 ISBN 978 1107016576 Astronomy Methods Author Hale Bradt Pub 2003 Pages 458 ISBN 978 0521535519 Astrophysics Processes Author Hale Bradt...

Page 57: ...57 Stellar Spectral Classification Author Richard O Gray Christopher J Corbally Pub 2009 Pages 592 ISBN 978 0691125114...

Page 58: ...__ Grating ___________ _ Micrometer position Central Wavelength Camera Model ____________________ Grating ___________ _ Micrometer position Central Wavelength Camera Model ____________________ Grating...

Page 59: ...__ Grating ___________ _ Micrometer position Central Wavelength Camera Model ____________________ Grating ___________ _ Micrometer position Central Wavelength Camera Model ____________________ Grating...

Page 60: ...no reproduction of this manual in any form in whole or in part may be made without written authorization of Baader Planetarium GmbH Baader Planetarium GmbH Zur Sternwarte D 82291 Mammendorf Tel 49 0 8...

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