Practical Work in Elementary Astronomy

Front Matter....Pages I-XXIII
Front Matter....Pages 1-1
The Stars around the North Pole....Pages 5-8
Some Autumn Constellations....Pages 9-11
Spherical Triangles....Pages 12-13
Sun-Dials....Pages 14-16
The Daily Rotation of the Earth....Pages 17-18
Conversion of Time....Pages 19-20
Simple Measurements with an Altimeter....Pages 21-23
Eccentricity of Graduated Circles (L)....Pages 24-26
The Adjustment of a Telescope....Pages 27-29
To Point the Telescope to a Star....Pages 30-31
Fundamental Measurements with the Meridian Circle....Pages 32-34
Reduction to the Meridian....Pages 35-36
The Sextant....Pages 37-39
Finding your Position at Sea....Pages 40-42
Parallax as a Measure for Stellar Distances....Pages 43-45
Precession, Aberration, Nutation....Pages 46-48
The Measurement of Astrographic Plates....Pages 49-52
To Grind a Telescope Mirror....Pages 53-58
Optics of a Small Telescope....Pages 59-61
The Orbit of the Moon....Pages 65-67
Front Matter....Pages 1-1
The Orbit of the Moon from Ephemeris Data....Pages 68-68
Lunar Eclipses....Pages 69-70
The Position of the Planets in their Orbits....Pages 71-72
The Orbit of Mars, as Determined by Kepler....Pages 73-75
Geocentric Coordinates of a Planet....Pages 76-78
The Three-Body Problem....Pages 79-83
The Orbit of a Meteor....Pages 84-87
Passage of an Artificial Satellite....Pages 88-90
Topography of the Moon....Pages 93-94
The Shape of Lunar Craters....Pages 95-98
Photographic Photometry of the Moon....Pages 99-100
Observation of Planets through a Telescope....Pages 101-102
The Albedo of Venus....Pages 103-105
The Rotation of Saturn....Pages 106-108
Front Matter....Pages 109-109
The Size of the Sun (S)....Pages 113-116
The Solar Constant (S)....Pages 117-119
The Brightness Distribution Over the Sun’s Disc (L)....Pages 120-122
The Solar Spectrum (L)....Pages 123-125
Profiles of Fraunhofer Lines (L)....Pages 126-128
Profiles of Fraunhofer Lines (L)....Pages 129-131
Front Matter....Pages 109-109
Equivalent Width of Fraunhofer Lines (L)....Pages 132-134
The Curve of Growth (L)....Pages 135-140
Sunspots (S)....Pages 141-142
The Rotation of the Sun (L)....Pages 143-144
The Solar Cycle (L)....Pages 145-148
The Convection Cells of Bénard (L)....Pages 149-150
The Shape of the Corona (L)....Pages 151-154
Radio Bursts after a Solar Flare (L)....Pages 155-159
To Draw a Constellation (S)....Pages 163-164
The Apparent Magnitudes of the Stars (S)....Pages 165-168
The Diameter of Stellar Images as a Measure for the Brightness (L) (Structure of a Stellar Image)....Pages 169-170
Photoelectric Photometry of Stellar Images (L)....Pages 171-172
The Atmospheric Extinction (S)....Pages 173-174
Stellar Spectra (L)....Pages 175-178
The Colours of the Stars (L)....Pages 179-180
The UBV Photometric System (L)....Pages 181-183
Interstellar Extinction (L)....Pages 184-186
The Nearest Stars (L)....Pages 187-190
The Motion of the Hyades (L)....Pages 191-194
The Mean Light Curve of a Cepheid (L)....Pages 195-197
Front Matter....Pages 109-109
The Observation of Double Stars (S)....Pages 198-200
The Orbit of a Visual Binary (L)....Pages 201-204
The Dynamical Parallax of Binaries (L)....Pages 205-206
The Orbit of a Spectroscopic Binary (L)....Pages 207-211
The Orbit of an Eclipsing Variable (L)....Pages 212-216
The Observation of Star Clusters and Nebulae (S)....Pages 217-218
Open Clusters (L)....Pages 219-222
The Distribution of the Stars in a Globular Cluster (L)....Pages 223-224
Cluster Variables in a Globular Cluster (L)....Pages 225-227
The Apex of the Solar Motion (L)....Pages 228-231
Preferential Directions in the Stellar Motions....Pages 232-234
Dark Nebulae (L)....Pages 235-235
The Milky Way (S)....Pages 236-240
The Spiral Structure of the Galactic Clouds, Derived from 21 cm Measurements (L)....Pages 241-244
Back Matter....Pages 245-247