PHD2 Best Practices - - PHD2 Guiding

phd2 best PracticesBruce WaddingtonAndy GalassoGetting Started Use the new-profile wizard to specify connections Enter correct values for camera pixel size and guide scopefocal length Build and use a dark library for the camera the wizard will help you do that Use a separate profile for each gear combinationGear Connections Use ascom pulse- Guiding instead of ST-4 Guiding if mount supports it Get the benefits of one less cable and better logging/diagnostics If you do use ST-4 Guiding , use ascom for the phd2 aux mount connectionLooping Use guide exposure times in the 2-4 sec range if possible You can t correct for seeing ignore the siren s song of rapid, short exposures Longer exposures average out seeing and make Guiding easier Keep the exposure short enough to react to the steepest tracking error but not below 1 sec4 sec guide 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 5557 59 61 63 65 67 69 71 73 7577 Arc-sec Seeing envelope of 1 arc-sec1 sec guide 14 27 40 53 66 79 92 105 118 131 144 157 170 183 196 209 222 235 248261 274 287 300 313 326 339 352 365 378 391 404 417430 Arc-sec Seeing envelope of 3 arc-secLooping Choos

Gear Connections • Use ASCOM pulse-guiding instead of ST-4 guiding if mount supports it • Get the benefits of one less cable and better logging/diagnostics

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