1. Event
1.1. Eclipse
1.2. Transit
1.3. Conjunction
1.4. Occultation
1.5. Storm
2. Object
2.1. Solar System
2.1.1. Sun
2.1.2. Earth
2.1.2.1. Night Landscape
2.1.2.2. Aurora
2.1.2.2.1. Borealis
2.1.2.2.2. Australis
2.1.2.3. Airglow
2.1.2.4. Meteors
2.1.2.5. Artificial Satellites
2.1.2.6. Light Pollution
2.1.2.7. Clouds
2.1.2.8. People
2.1.2.9. Belt of Venus
2.1.2.10. Noctilucent Clouds
2.1.3. Moon
2.1.4. Planets
2.1.4.1. Mercury
2.1.4.2. Venus
2.1.4.3. Mars
2.1.4.4. Jupiter
2.1.4.5. Saturn
2.1.4.6. Uranus
2.1.4.7. Neptune
2.1.5. Asteroids & Minor Planets
2.1.6. Comets
2.1.7. Zodiacal Light
2.1.8. Gegenschein
2.2. Deep Sky
2.2.1. Galaxies
2.2.1.1. Spiral
2.2.1.1.1. Milky Way
2.2.1.2. Elliptical
2.2.1.3. Irregular
2.2.1.3.1. Magellenic Clouds
2.2.2. Nebulae
2.2.2.1. Emission
2.2.2.2. Reflection
2.2.3. Star Clusters
2.2.3.1. Open
2.2.3.2. Globular
2.2.4. Constellations
3. Media
3.1. Digital Image
3.2. Digital Video
3.3. Film
4. Colour Space
4.1. RGB
4.2. B&W
4.3. CMYK
4.4. Lab
5. Composition Elements
5.1. Reflection
5.2. Silhouette
6. Time of Day
6.1. Night
6.2. Day
6.3. Morning
6.4. Evening
6.5. Sunset
6.6. Sunrise
7. Prccessing
7.1. HDR
7.2. Composite
7.3. Panorama
7.4. Stack
8. Illumination
8.1. Sunlight
8.2. Moonlight
8.3. Light Painting
9. Awards and Publications
9.1. APOD
9.2. Calendar
10. Style/Technique
10.1. Astrophotography
10.1.1. Deep Sky
10.1.2. Lunar and Planetary
10.1.3. Widefield
10.2. Night Sky Photography
10.2.1. Twilight
10.2.2. Night Sky Scenes
10.2.3. Star Trails
10.2.3.1. Single Shot
10.2.3.2. Stacked Sequence
10.2.4. The Moon / Long Focal Length
10.2.5. Timelapse
10.3. Scientific Imaging
10.3.1. Spectroscopy
10.3.2. Survey
10.3.2.1. Supernova
10.3.2.2. Comet & Asteroid
10.3.2.3. Variable Stars
10.3.3. Astrometry
10.3.4. Photometry
11. Equipment
11.1. Mount
11.1.1. Equatorial
11.1.1.1. Portable
11.1.1.2. Fixed
11.1.2. Alt-Az
11.1.3. Tripod
11.1.4. Motion Control
11.1.5. Handheld
11.1.6. Airborne
11.1.6.1. Aircraft
11.1.6.2. Balloon
11.1.6.3. Rocket
11.1.7. Space Telescope
11.1.7.1. Earth Orbit
11.1.7.2. Solar Orbit
11.2. Optics
11.2.1. Lens
11.2.1.1. Fisheye
11.2.1.2. Wide Angle
11.2.1.3. Standard
11.2.1.4. Telephoto
11.2.2. Telescope
11.2.2.1. Refractor
11.2.2.2. Reflector
11.2.3. Pinhole
11.2.4. Light Field
11.3. Camera
11.3.1. DSLR
11.3.2. CCD
11.3.3. Film
11.4. Observatory
12. Location
12.1. Rural
12.2. Suburban
12.3. City
12.4. Regional Town
12.5. Coastal
12.6. Mountains
13. Spectrum
13.1. White Light
13.2. Narrowband
13.2.1. Mono
13.2.2. Colour Composite
13.3. Infrared
13.4. Ultraviolet
14. Land
14.1. Private Land
14.1.1. Society Dark Sky Site
14.2. Public Land
15. Tracking
15.1. Autoguide
15.2. Track & Stack
15.3. No Tracking
16. Control
16.1. Computer
16.1.1. Local
16.1.2. Remote