Astronomy study guides

A deep-dive Edexcel GCSE Astronomy guide to Topic 1 Planet Earth. Covers the oblate spheroid shape, the mean diameter and internal structure, latitude and longitude, the major surface reference points, and how the atmosphere affects observations, with the exam patterns Pearson repeats.

A deep-dive Edexcel GCSE Astronomy guide to Topic 10 Solar astronomy. Covers safe solar observation, the Sun's internal structure and the proton-proton fusion chain, the solar atmosphere, sunspots and the solar cycle, the solar wind and the magnetosphere, with the exam patterns Pearson repeats.

A deep-dive Edexcel GCSE Astronomy guide to telescopes and observatories. Covers telescope optics and designs, light grasp, magnification and resolution, the atmospheric windows, and the advantages and disadvantages of space telescopes, with the exam patterns Pearson repeats.

A deep-dive Edexcel GCSE Astronomy guide to Topic 11 Exploring the Solar System. Covers the bodies of the Solar System, comets and their origins, the characteristics of the planets, the space probes and manned missions that explore them, and transits of Venus, with the exam patterns Pearson repeats.

A deep-dive Edexcel GCSE Astronomy guide to Topic 12 Formation of planetary systems. Covers gravitational and tidal forces, the Roche Limit and the formation of planets and moons, the detection of exoplanets, the requirements for life and the Goldilocks Zone, the Drake equation and SETI, with the exam patterns Pearson repeats.

A deep-dive Edexcel GCSE Astronomy guide to Topic 13 Exploring starlight. Covers the magnitude scale and distance modulus, stellar spectra and the Hertzsprung-Russell diagram, parallax and standard candles, and variable stars, with the exam patterns Pearson repeats.

A deep-dive Edexcel GCSE Astronomy guide to Topic 14 Stellar evolution. Covers the radiation pressure versus gravity balance, the life cycles of low-mass and high-mass stars, the degeneracy pressures supporting white dwarfs and neutron stars, the Chandrasekhar Limit, and detecting black holes, with the exam patterns Pearson repeats.

A deep-dive Edexcel GCSE Astronomy guide to Topic 15 Our place in the Galaxy. Covers the Milky Way's structure and our place in it, the Local Group, the Hubble classification of galaxies and the Tuning Fork, active galactic nuclei, and clusters and superclusters, with the exam patterns Pearson repeats.

A deep-dive Edexcel GCSE Astronomy guide to Topic 16 Cosmology. Covers redshift and the redshift formula, Hubble's law and the age of the Universe, the evidence for the Big Bang, the CMB fluctuations, and dark matter, dark energy and the fate of the Universe, with the exam patterns Pearson repeats.

A deep-dive Edexcel GCSE Astronomy guide to Topic 2 The lunar disc. Covers the Moon's shape and size, the naked-eye surface formations and named features, the rotation and orbital periods, the synchronous orbit, and libration, with the exam patterns Pearson repeats.

A deep-dive Edexcel GCSE Astronomy guide to Topic 3 The Earth-Moon-Sun system. Covers relative sizes and distances, the measurements of Eratosthenes and Aristarchus, tides, the precession of the Earth's axis, and solar and lunar eclipses, with the exam patterns Pearson repeats.

A deep-dive Edexcel GCSE Astronomy guide to Topic 4 Time and the Earth-Moon-Sun cycles. Covers sidereal and synodic days and months, the lunar phases, equinoxes and solstices, the Equation of Time and sundials, time zones, GMT and the determination of longitude, with the exam patterns Pearson repeats.

A deep-dive Edexcel GCSE Astronomy guide to Topic 5 Solar System observation. Covers safe solar observation, the ecliptic and Zodiacal Band, retrograde motion, the configuration terms, and meteors and meteor showers, with the exam patterns Pearson repeats.

A deep-dive Edexcel GCSE Astronomy guide to Topic 6 Celestial observation. Covers the celestial sphere and coordinate systems, circumpolarity and diurnal motion, finding latitude from Polaris, and naked-eye phenomena and observing conditions, with the exam patterns Pearson repeats.

A deep-dive Edexcel GCSE Astronomy guide to Topic 7 Early models of the Solar System. Covers how ancient civilisations used the sky and aligned monuments, the geocentric model and Ptolemy's epicycles, the scale of the Solar System, and the units AU, light year and parsec, with the exam patterns Pearson repeats.

A deep-dive Edexcel GCSE Astronomy guide to Topic 8 Planetary motion and gravity. Covers the transition to the heliocentric model through Brahe, Copernicus and Kepler, the role of gravity in stable orbits, Kepler's three laws and the use of the third law, and Newton's law of universal gravitation, with the exam patterns Pearson repeats.

A deep-dive Edexcel GCSE Astronomy guide to Topic 9 Exploring the Moon. Covers the Moon's internal structure compared with the Earth's, the near and far sides, escape velocity and the need for rockets, and the theories of the Moon's origin, with the exam patterns Pearson repeats.