Derekscope
UK Astronomical highlights and a guide for the naked eye, binoculars, and telescope deaf owners, compiled by Derek Rowley
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  • 2025 Astronomy Calendar
  • Observing the Moon
  • Constellation Names
  • Lists of Deep Sky Objects
    • Messier Objects
    • DOS – Quick List
  • My Astrophotography
  • BSL Astronomy
  • RoboScopes
  • Spacecraft into Space
  • UK Deaf Astronomical Clubs

BSL Astronomy


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BSL Astronomy / Glossary

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A to Z of Astronomy term
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(Click the blue text below where it’s available / Others in black text below more to follow asap)

  • astronomy
  • asterism
  • asteroid
  • asteroid belt
  • astronaut
  • astronaut walk
  • atmosphere
  • axis of rotation
  • big bang
  • binary star
  • binoculars
  • blue moon
  • black hole
  • brown dwarf
  • circumpolar
  • comet
  • conjunction
  • constellation
  • dark adaptation
  • dark cloud
  • dark matter
  • dark sky
  • dark sky discovery site
  • dense core
  • doppler effect
  • double star
  • dwarf planet
  • Earth (planet)
  • earthshine
  • eclipse
  • elliptical orbit
  • elongation
  • exoplanets
  • equinox
  • fireball
  • galaxy
  • gas planet
  • giant planet
  • globular cluster
  • Great Red Spot
  • hemisphere
  • ice planet
  • inner planet
  • International Space Station
  • Io
  • Jupiter
  • Kuiper belt
  • light pollution
  • light year
  • lunar eclipse
  • Mars (1) (2) (3)
  • Magnitude
  • Mercury
  • Messier Objects
  • meteor
  • meteor shower
  • milky-way
  • Moon
  • NASA
  • nebula
  • Neptune
  • northern hemisphere
  • Northern Lights
  • nova
  • occultation
  • Oort cloud
  • open cluster
  • opposition
  • outer planet
  • perihelion
  • phases of the Moon
  • planet(s)
  • planisphere
  • Pluto
  • Polaris (star)
  • pulsar
  • red giant
  • red shift
  • rocky planet
  • satellite
  • Saturn
  • Saturn’s Ring
  • solar system
  • Southern Hemisphere
  • space (1) (2)
  • space shuttle
  • spacesuit
  • spectroscopy
  • solstice
  • supernova (nova)
  • Transit
  • Uranus
  • Venus
  • white dwarf
  • zenith
  • zodiacal lights


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