Specifications

iv AUTOSTAR CCD PHOTOMETRY
TABLE OF CONTENTS – APPENDIXES
Page
A. Modifying a DSI Pro Camera 33
Introduction 33
The Affordable Meade Deep Sky Imager (DSI) 34
Monochrorme Deep Sky Imager Pro (DSI Pro) 34
Adding a Filter Wheel – Installing The Nose Piece Adapter 35
Filter Wheel 36
CCD Photometric Filters 37
Cooling the DSI Pro 39
TEC Cooler Mods 40
Parts List 41
DSI Pro TEC Cooler Modifications 41
Wiring and Schematics 43
Conclusion 44
List of Suppliers for Filters and Cooler Mods 44
B. Calculating the Air Mass 45
Introduction 45
Getting Started 46
Star's Declination (δ)47
Determining a Star's Hour Angle (HA) 48
Determining Local Sidereal Time (LST) 49
Creating an LST Table Using MICA Software 50
LST Example 52
Determining the Hour Angle (HA) 52
Determining the Air Mass 53
C. Determining Standard Star Data 55
Observing Standard Stars in M67 (NGC 2682) 55
BVRI Standard Magnitudes in M67 58
D. Determining BVRI Extinction Coefficients 59
Introduction 59
Air Mass 59
Terms and Definitions 60
Equations 60
Instrumental Magnitude Calculations 60
Determining the Extinction Coefficients 61
Determination of Instrumental Magnitudes 62