## Daylight Star Observations for Position and Azimuth in Antarctica |

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### Contents

DEFINITION OF TERMS | 4 |

FIELD PROCEDURES | 7 |

Figure Page 1 Sidereal Graph for Achernar | 9 |

11 other sections not shown

### Common terms and phrases

Achernar Acrux altitude measurements altitude-time graphs angle and intercept astronomical triangle aVIS 3H1 azimuth angle azimuth corrections chronometer Coefficient in normal coefficient of dc computed altitude cosine law cosine method Degrees portion dZ the expression electronic computer Equating expressions 15 Fomalhaut Fomalhaut 1.3 given by 9 Greenwich Mean HinwiZV hour angle latitude latitude and longitude least-squares line of position longitude mean azimuth measured horizontal angle meridian Ac meridian angle Minutes portion normal equation northern hemisphere observation equation observed altitude observer's meridian observing program parallactic angle position and azimuth position lines prime vertical probable error Program COSINE Program LOP Programs AZMUTH radians reference line reference mark right ascension Roosevelt Island S3inNIW sanoH Seconds portion sine law solution southern hemisphere Standard error star east star west star's azimuth stars observed stellar observations stopwatch Substituting for dZ theodolite V1VG zenith distance