Observation Session – 04 July 2009

Location: Atlas Mountains, Morocco

Session duration: 2 nights

Sky conditions: Moderate turbulence, seeing ~6/10

Instruments:

  • 300mm Dobsonian reflector
  • 100mm apochromatic refractor
  • 200mm Newtonian reflector

Targets:

  • Jupiter
  • The Moon
  • M45 (Pleiades)
  • M31 (Andromeda Galaxy)

Observation notes:

Planetary and deep-sky observation proceeded under calm conditions, with most of the session devoted to visual comparison between the larger reflector and the refractor.

Several members made sketches in the field notebook and compared the apparent brightness of bright stars against previous entries.

Members present: Lucille Godefert, Maxime Dallois, Adama Traoré, Ayoub Berrabeh, Antoine Delorme