AutoStar CCD Photometry

A Step-By-Step Guide For Doing Serious Astronomy

Hopkins Phoenix Observatory

Figures


2-1. Meade AutoStar Suite Planetarium Screen -- Selecting DSI Imaging

2-2. AutoStar Envisage Screen -- Selecting Settings (Camera Not Connected or Inoperative)

2-3. Settings Window

2-4. Selecting "Take Darks"

2-5. Take Darks Window

2-6. Dark Frames Complete Window

2-7. Envisage Screen With CCD Camera Operating

2-8. Exposure Setting Window

2-9. Deep Sky Image Process Window

2-10. Save Process Window

2-11. Quality and Evaluation Count Window

2-12. Save Procedure Window

2-13. DSI1 Folder Tab

2-14. Tracking Star Selection Box

2-15. Stats Area ñ (May Be Ignored for Photometry)

2-16. Long Exp and Live Selections. (Note Dark Sub is Checked)

2-17. Start Button

2-18. Sample I Filter Sky Flat


3-1. Selecting a New Group of Images

3-2. Selecting Filter Files to Calibrate with Flat Field

3-3. Calibrate Selection

3-4. Calibrate Window

3-5. New Calibrated Image Files

3-6. Photometry Cursor

3-7. Select Set Reference Magnitude

3-8. Set Reference Magnitude Window

3-9 . Select Determine Magnitude

3-10. Magnitude Determination Window


4-1. FileMaker Pro Data Summation Program

4-2. Database List of Data Records


A-1. Modified DSI Pro CCD Camera and Filter Turret on Meade 12 inch (30.5 cm) LX200 GPS Telescope at HPO

A-2. DSI Pro Camera with Filter Slide (left) and Low-Profile and Original Nosepiece Adapters (Right)

A-3. Disassembled ATIK Filter Wheel

A-4. Filter Wheel Disk with BVRI Photometric Filters

A-5. Standard UBVRI Johnson-Cousins Photometry Filter Passbands

A-6. Views Inside the DSI Pro with Cold Finger (White Square) and Nylon Mounting Screws Shown

A-7. Modified DSI Pro with Focal Reducer, Filter Wheel, TEC/HeatSink/Fan Assembly and Foam Insulation

A-8. Mechanical Modification Drawing and Electrical Schematic


B-1. Illustration of a Star's Air Mass (Accounting for Curvature of the Earthís Atmosphere).

B-2. Illustration of a Star's Declination.

B-3. Illustration of Star's Hour Angle for Northern Hemisphere Observers Facing The Southern Horizon

B-4. HPO FileMaker Pro Program for Calculating Air Mass


C-1. M67 Open Cluster Photograph

C-2. M67 CCD Image Taken at HPO

C-3. M67 Finder Chart for Star Identifications


D-1. Plot of i versus X

D-2. Plot of r versus X.

D-3. Plot of v versus X

D-4. Plot of b versus X


E-1 Example FileMaker Pro Observational Data Calculations

E-2. Example FileMaker Pro Transformation Coefficient Calculation

E-3. ((V - I) - (v - i)o) versus (V - I) Plot

E-4. ((V - R) - (v - r)o) versus (V - R) Plot

E-5. ((R - I) - (r - i)o) versus (R - I) Plot

E-6. (V - vo) versus (B - V) Plot

E-7. ((B - V) - (b - v)o) versus (B - V) Plot


F-1. Manual Data Plot


G-1. Image Information

G-2. FITS Header


H-1. Interior Construction of HPO Light Box

H-2. Outside of Plywood Bulkhead with Aperture

H-3. Inside of Plywood Bulkhead

H-4. Typical Light Box Flat Field (V Filter)

H-5. Typical Twilight Sky Flat

 


Present Page Version as of 27 April 2007

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